Climate and average weather in Joal
In Joal, the weather is hot, wet, and mostly clear and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around August.
Over the course of the year, the temperature in Joal typically varies from 19°C to 32°C, and is rarely below 17°C or above 34°C. November is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Joal for warm-weather activities is from early December to early July.
- Hottest
- Nov
- 32°
- Coldest
- Jan
- 19°
- Wettest
- Aug
- 184 mm
- Driest
- Apr
- 0 mm
- Rain / yr
- 416 mm
- 50 wet days
- Daylight
- 11.2–12.8 h
- shortest–longest
- Elevation
- 8 m
- 14.2°N
- Clearest
- Mar
- 26% cloud
Joal is city in Senegal.
- Density
- 2,647/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Joal weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early December to early July.
Temperature through the year
Daily average highs and lows in Joal, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Joal stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 32°C and low of 23°C; the coolest is January, with an average low of 19°C and high of 29°C.
Days typically run about 7°C warmer than nights, with the widest day–night swing (around 10°C) in March.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 31 | 32 | 30 |
| Avg low (°C) | 19 | 20 | 20 | 20 | 22 | 24 | 26 | 26 | 26 | 26 | 23 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 29 | 19 |
| Feb | 29 | 20 |
| Mar | 30 | 20 |
| Apr | 30 | 20 |
| May | 29 | 22 |
| Jun | 29 | 24 |
| Jul | 29 | 26 |
| Aug | 29 | 26 |
| Sep | 30 | 26 |
| Oct | 31 | 26 |
| Nov | 32 | 23 |
| Dec | 30 | 21 |
How hot and cold Joal really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Joal feels like about 38°C (around October 7). About 161 days a year carry some heat stress, peaking in October.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 29 | 29 | 30 | 30 | 30 | 32 | 34 | 35 | 36 | 37 | 33 | 30 |
| Air high (°C) | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 31 | 32 | 30 |
| Feels-like low (°C) | 19 | 20 | 20 | 20 | 22 | 24 | 26 | 26 | 26 | 26 | 23 | 21 |
| Air low (°C) | 19 | 20 | 20 | 20 | 22 | 24 | 26 | 26 | 26 | 26 | 23 | 21 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 29 | 29 | 19 | 19 |
| Feb | 29 | 29 | 20 | 20 |
| Mar | 30 | 30 | 20 | 20 |
| Apr | 30 | 30 | 20 | 20 |
| May | 30 | 29 | 22 | 22 |
| Jun | 32 | 29 | 24 | 24 |
| Jul | 34 | 29 | 26 | 26 |
| Aug | 35 | 29 | 26 | 26 |
| Sep | 36 | 30 | 26 | 26 |
| Oct | 37 | 31 | 26 | 26 |
| Nov | 33 | 32 | 23 | 23 |
| Dec | 30 | 30 | 21 | 21 |
Average hourly temperature in Joal
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on November afternoons, near 32°C, and coldest before dawn in January, near 19°C.
Joal weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 19° | 2 | 0.2 | 11.3 | 7.2 |
| Feb | 29° / 20° | 1 | 0.1 | 11.5 | 6.8 |
| Mar | 30° / 20° | 0 | 0.1 | 11.9 | 6.6 |
| Apr | 30° / 20° | 0 | 0 | 12.3 | 6.8 |
| May | 29° / 22° | 0 | 0.1 | 12.6 | 7.0 |
| Jun | 29° / 24° | 4 | 0.7 | 12.8 | 6.8 |
| Jul | 29° / 26° | 61 | 9 | 12.8 | 5.4 |
| Aug | 29° / 26° | 184 | 18.1 | 12.5 | 4.2 |
| Sep | 30° / 26° | 128 | 15.7 | 12.1 | 4.3 |
| Oct | 31° / 26° | 35 | 5.1 | 11.7 | 5.0 |
| Nov | 32° / 23° | 1 | 0.2 | 11.3 | 5.2 |
| Dec | 30° / 21° | 2 | 0.3 | 11.2 | 6.4 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Joal gets about 416 mm of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.
The wetter season lasts 3.5 months, from around Jul 4 to Oct 19, peaking in August at about 63% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 26.
August is the wettest month by volume, with 184 mm over about 18 wet days; April is the driest, with 0 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 1 | 0 | 0 | 0 | 0 | 3 | 29 | 58 | 51 | 17 | 1 | 1 |
| Rain days | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 18 | 16 | 5 | 0 | 0 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 1 | 0 |
| Feb | 0 | 0 |
| Mar | 0 | 0 |
| Apr | 0 | 0 |
| May | 0 | 0 |
| Jun | 3 | 1 |
| Jul | 29 | 9 |
| Aug | 58 | 18 |
| Sep | 51 | 16 |
| Oct | 17 | 5 |
| Nov | 1 | 0 |
| Dec | 1 | 0 |
Monthly rainfall
Over a full year, Joal collects about 416 mm of rain across 50 wet days — roughly 35 mm in an average month.
It doesn’t fall evenly. August is the wettest month with 184 mm, while April is the driest at just 0 mm. The three wettest months alone bring about 89% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 2 | 1 | 0 | 0 | 0 | 4 | 61 | 184 | 128 | 35 | 1 | 2 |
| Rain days | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 18 | 16 | 5 | 0 | 0 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 2 | 0 |
| Feb | 1 | 0 |
| Mar | 0 | 0 |
| Apr | 0 | 0 |
| May | 0 | 0 |
| Jun | 4 | 1 |
| Jul | 61 | 9 |
| Aug | 184 | 18 |
| Sep | 128 | 16 |
| Oct | 35 | 5 |
| Nov | 1 | 0 |
| Dec | 2 | 0 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Joal, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around January 13 and lasts for 5.6 months, ending around July 1. The clearest month is April, when the sky is clear, mostly clear, or partly cloudy 83% of the time on average.
The cloudier part of the year begins around July 2 and lasts for 3.3 months, ending around October 10. The cloudiest month is August, when it is overcast or mostly cloudy 70% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 65 | 72 | 81 | 83 | 81 | 71 | 51 | 30 | 41 | 64 | 59 | 57 |
| Cloudier (%) | 35 | 28 | 19 | 17 | 19 | 29 | 49 | 70 | 59 | 36 | 41 | 43 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 65 | 35 |
| Feb | 72 | 28 |
| Mar | 81 | 19 |
| Apr | 83 | 17 |
| May | 81 | 19 |
| Jun | 71 | 29 |
| Jul | 51 | 49 |
| Aug | 30 | 70 |
| Sep | 41 | 59 |
| Oct | 64 | 36 |
| Nov | 59 | 41 |
| Dec | 57 | 43 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around May 28, brings about 12 h 48 min of light; the shortest, around January 1, only 11 h 12 min — a swing of roughly 1 h 36 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.3 | 11.5 | 11.9 | 12.3 | 12.6 | 12.8 | 12.8 | 12.5 | 12.1 | 11.7 | 11.3 | 11.2 |
| Sunrise (AM) | 7:39 | 7:36 | 7:20 | 6:58 | 6:44 | 6:43 | 6:50 | 6:57 | 6:59 | 7:02 | 7:13 | 7:29 |
| Sunset (PM) | 6:54 | 7:08 | 7:14 | 7:17 | 7:23 | 7:33 | 7:36 | 7:26 | 7:04 | 6:43 | 6:33 | 6:39 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 11.3 | 7:39 | 6:54 |
| Feb | 11.5 | 7:36 | 7:08 |
| Mar | 11.9 | 7:20 | 7:14 |
| Apr | 12.3 | 6:58 | 7:17 |
| May | 12.6 | 6:44 | 7:23 |
| Jun | 12.8 | 6:43 | 7:33 |
| Jul | 12.8 | 6:50 | 7:36 |
| Aug | 12.5 | 6:57 | 7:26 |
| Sep | 12.1 | 6:59 | 7:04 |
| Oct | 11.7 | 7:02 | 6:43 |
| Nov | 11.3 | 7:13 | 6:33 |
| Dec | 11.2 | 7:29 | 6:39 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Joal averages about 15 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 23 days.
The sunnier stretch runs 5.5 months, from around Jan 11 to Jun 27. The sunniest month is May, with roughly 21 sunny days (bright).
The greyest month is August, down near 4 sunny days — about 83% fewer than the May peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 16 | 17 | 22 | 22 | 22 | 17 | 9 | 4 | 6 | 15 | 14 | 14 |
| Sky | Bright | Bright | Bright | Bright | Bright | Bright | Mixed | Gloomy | Gloomy | Bright | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 16 | Bright |
| Feb | 17 | Bright |
| Mar | 22 | Bright |
| Apr | 22 | Bright |
| May | 22 | Bright |
| Jun | 17 | Bright |
| Jul | 9 | Mixed |
| Aug | 4 | Gloomy |
| Sep | 6 | Gloomy |
| Oct | 15 | Bright |
| Nov | 14 | Mixed |
| Dec | 14 | Mixed |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Joal, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 6.9 months, from around April 24 to November 19. The muggiest month is June, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around November 20 to April 23, and January is the most comfortable month — the air is dry or comfortable 94% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 77 | 68 | 39 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 51 |
| Comfortable (%) | 17 | 23 | 42 | 38 | 8 | 0 | 0 | 0 | 0 | 1 | 19 | 25 |
| Humid (%) | 5 | 8 | 17 | 43 | 35 | 2 | 0 | 0 | 0 | 3 | 25 | 14 |
| Muggy (%) | 1 | 1 | 2 | 10 | 45 | 24 | 4 | 0 | 0 | 8 | 25 | 9 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 12 | 70 | 69 | 35 | 15 | 35 | 17 | 1 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 4 | 28 | 65 | 85 | 54 | 5 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 77 | 17 | 5 | 1 | 0 | 0 |
| Feb | 68 | 23 | 8 | 1 | 0 | 0 |
| Mar | 39 | 42 | 17 | 2 | 0 | 0 |
| Apr | 8 | 38 | 43 | 10 | 0 | 0 |
| May | 0 | 8 | 35 | 45 | 12 | 0 |
| Jun | 0 | 0 | 2 | 24 | 70 | 4 |
| Jul | 0 | 0 | 0 | 4 | 69 | 28 |
| Aug | 0 | 0 | 0 | 0 | 35 | 65 |
| Sep | 0 | 0 | 0 | 0 | 15 | 85 |
| Oct | 0 | 1 | 3 | 8 | 35 | 54 |
| Nov | 9 | 19 | 25 | 25 | 17 | 5 |
| Dec | 51 | 25 | 14 | 9 | 1 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Joal is typically light breeze, near 14 km/h, and varies moderately with the seasons.
The windier part of the year lasts 7.0 months, from around Dec 17 to Jul 16. The windiest month is April, averaging about 17 km/h (light breeze).
The calmer part of the year runs from around Jul 17 to Dec 16, with September the calmest month at about 11 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 15 | 16 | 17 | 17 | 15 | 15 | 14 | 13 | 11 | 11 | 13 | 14 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | calm | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 15 | light breeze |
| Feb | 16 | light breeze |
| Mar | 17 | light breeze |
| Apr | 17 | light breeze |
| May | 15 | light breeze |
| Jun | 15 | light breeze |
| Jul | 14 | light breeze |
| Aug | 13 | light breeze |
| Sep | 11 | calm |
| Oct | 11 | calm |
| Nov | 13 | light breeze |
| Dec | 14 | light breeze |
Hazard calendar for Joal
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Joal sits in the Atlantic hurricane belt; the season peaks August–October.
Joal sees seasonal dust haze (January–October), heaviest in June.
Best time to visit Joal
To characterize how pleasant the weather is in Joal throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late June, Joal is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Joal for general outdoor tourist activities is from early December to early July, with a peak score in the third week of January.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 7.2 | 6.8 | 6.6 | 6.9 | 7.0 | 6.8 | 5.4 | 4.2 | 4.3 | 5.0 | 5.2 | 6.4 |
| Rating | good | good | good | good | good | good | fair | fair | fair | fair | fair | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 7.2 | good |
| Feb | 6.8 | good |
| Mar | 6.6 | good |
| Apr | 6.9 | good |
| May | 7.0 | good |
| Jun | 6.8 | good |
| Jul | 5.4 | fair |
| Aug | 4.2 | fair |
| Sep | 4.3 | fair |
| Oct | 5.0 | fair |
| Nov | 5.2 | fair |
| Dec | 6.4 | good |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Joal for hot-weather activities is from mid October to mid July, with a peak score in the second week of May.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Joal, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
Joal packs about the same all year — highs hold near 32°C. Across the year the things worth having are light clothes and sun protection.
In November, Joal sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection.
Sea temperature near Joal
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea offshore is warmest in October at about 29°C and coldest in March near 19°C.
It's comfortable for a long swim from Apr 16 to Feb 5 — about 9.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 21 | 20 | 19 | 20 | 22 | 26 | 28 | 28 | 29 | 29 | 27 | 24 |
| Comfort | Refreshing | Cool | Cool | Cool | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 21 | Refreshing |
| Feb | 20 | Cool |
| Mar | 19 | Cool |
| Apr | 20 | Cool |
| May | 22 | Refreshing |
| Jun | 26 | Warm |
| Jul | 28 | Warm |
| Aug | 28 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 27 | Warm |
| Dec | 24 | Refreshing |
UV index (midday) in Joal by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Joal peaks around March 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 11 | 13 | 12 | 11 | 10 | 11 | 12 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Average hourly UV index in Joal
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in March the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 6.5 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 6.5 | 6 |
| UV ≥ 6 (h/day) | 4 | 5 | 6 | 6 | 6 | 5.5 | 6 | 6 | 6 | 5 | 4 | 3 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 6.5 | 4 |
| Feb | 7 | 5 |
| Mar | 8 | 6 |
| Apr | 8 | 6 |
| May | 8 | 6 |
| Jun | 8 | 5.5 |
| Jul | 8 | 6 |
| Aug | 8 | 6 |
| Sep | 8 | 6 |
| Oct | 7 | 5 |
| Nov | 6.5 | 4 |
| Dec | 6 | 3 |
Air quality in Joal by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Joal is worst in February — around 105 µg/m³ PM2.5 (unhealthy), about 3.2× the cleanest month (August, 33 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 100 | 105 | 84 | 66 | 60 | 71 | 46 | 33 | 41 | 66 | 76 | 96 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 100 | Unhealthy |
| Feb | 105 | Unhealthy |
| Mar | 84 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 60 | Unhealthy |
| Jun | 71 | Unhealthy |
| Jul | 46 | Poor |
| Aug | 33 | Moderate |
| Sep | 41 | Poor |
| Oct | 66 | Unhealthy |
| Nov | 76 | Unhealthy |
| Dec | 96 | Unhealthy |
Growing season
Joal is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Joal banks about 5,926 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 430 | 407 | 467 | 451 | 481 | 499 | 543 | 545 | 536 | 573 | 525 | 470 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 430 |
| Feb | 407 |
| Mar | 467 |
| Apr | 451 |
| May | 481 |
| Jun | 499 |
| Jul | 543 |
| Aug | 545 |
| Sep | 536 |
| Oct | 573 |
| Nov | 525 |
| Dec | 470 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Joal receives about 6.0 kWh/m² a day of solar energy on average — intense — with a clear seasonal swing between 4.9 and 7.3 kWh/m².
The brighter stretch of the year lasts 4.8 months, from around Feb 15 to Jul 9. The brightest month is May, averaging about 7.2 kWh/m² (intense).
The dimmest month is August, down near 5.1 kWh/m² — roughly 29% less than the May peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.4 | 6.0 | 6.9 | 7.2 | 7.2 | 6.7 | 5.8 | 5.0 | 5.3 | 5.9 | 5.6 | 5.2 |
| Level | Bright | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 5.4 | Bright |
| Feb | 6.0 | Intense |
| Mar | 6.9 | Intense |
| Apr | 7.2 | Intense |
| May | 7.2 | Intense |
| Jun | 6.7 | Intense |
| Jul | 5.8 | Bright |
| Aug | 5.0 | Bright |
| Sep | 5.3 | Bright |
| Oct | 5.9 | Bright |
| Nov | 5.6 | Bright |
| Dec | 5.2 | Bright |
Where is Joal?
Joal sits at 14.2°N, 16.8°W, 8 m above sea level, in Senegal. The nearest listed city is Mbour, 30 km away.
Topography around Joal
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Joal.
Within 3 km, the terrain around Joal has only modest variations in elevation — a maximum elevation change of 14 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 35 m; within 80 km, only modest variations in elevation — a maximum elevation change of 144 m.
The land around Joal is covered by water (46%) within 3 km, water (54%) within 16 km, and water (39%) and cropland (33%) within 80 km.
Senegal travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / D / E / K
- 230 V · 50 Hz
- Prices
- ≈ 36% of US
- price level, 2025
- GDP per capita
- $1,955
- 2025
- Happiness
- 4.8 / 10
- World Happiness, 2025
- Safe drinking water
- 27%
- of population, 2024
- Homicide rate
- 0.3
- per 100k, 2015
- Road deaths
- 23.5
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 442
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Joal (14.1731°, -16.8493°, elevation 8 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).