Climate and average weather in Donghol-Sigon
In Donghol-Sigon, the summers are sweltering, dry, and mostly clear and the winters are warm and mostly cloudy.
Over the course of the year, the temperature in Donghol-Sigon typically varies from 17°C to 35°C, and is rarely below 14°C or above 36°C. April is the hottest month of the year, while August is the coldest.
Based on the travel score, the best time of year to visit Donghol-Sigon for warm-weather activities is from early November to mid February.
- Hottest
- Apr
- 35°
- Coldest
- Aug
- 20°
- Wettest
- Aug
- 409 mm
- Driest
- Jan
- 1 mm
- Rain / yr
- 1641 mm
- 153 wet days
- Daylight
- 11.3–12.7 h
- shortest–longest
- Elevation
- 940 m
- 11.8°N
- Clearest
- Feb
- 31% cloud
Donghol-Sigon is human settlement in Guinea.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Donghol-Sigon 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 November to mid February.
Temperature through the year
Daily average highs and lows in Donghol-Sigon, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Donghol-Sigon stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 35°C and low of 22°C; the coolest is August, with an average low of 20°C and high of 27°C.
Days typically run about 11°C warmer than nights, with the widest day–night swing (around 14°C) in February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 33 | 34 | 35 | 33 | 29 | 27 | 27 | 28 | 30 | 31 | 31 |
| Avg low (°C) | 17 | 18 | 20 | 22 | 22 | 21 | 20 | 20 | 20 | 19 | 18 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 31 | 17 |
| Feb | 33 | 18 |
| Mar | 34 | 20 |
| Apr | 35 | 22 |
| May | 33 | 22 |
| Jun | 29 | 21 |
| Jul | 27 | 20 |
| Aug | 27 | 20 |
| Sep | 28 | 20 |
| Oct | 30 | 19 |
| Nov | 31 | 18 |
| Dec | 31 | 17 |
How hot and cold Donghol-Sigon 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, Donghol-Sigon feels like about 35°C (around April 3). About 128 days a year carry some heat stress, peaking in April.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 31 | 33 | 34 | 35 | 34 | 32 | 29 | 28 | 30 | 31 | 31 | 31 |
| Air high (°C) | 31 | 33 | 34 | 35 | 33 | 29 | 27 | 27 | 28 | 30 | 31 | 31 |
| Feels-like low (°C) | 17 | 18 | 20 | 22 | 22 | 21 | 20 | 20 | 20 | 19 | 18 | 17 |
| Air low (°C) | 17 | 18 | 20 | 22 | 22 | 21 | 20 | 20 | 20 | 19 | 18 | 17 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 31 | 31 | 17 | 17 |
| Feb | 33 | 33 | 18 | 18 |
| Mar | 34 | 34 | 20 | 20 |
| Apr | 35 | 35 | 22 | 22 |
| May | 34 | 33 | 22 | 22 |
| Jun | 32 | 29 | 21 | 21 |
| Jul | 29 | 27 | 20 | 20 |
| Aug | 28 | 27 | 20 | 20 |
| Sep | 30 | 28 | 20 | 20 |
| Oct | 31 | 30 | 19 | 19 |
| Nov | 31 | 31 | 18 | 18 |
| Dec | 31 | 31 | 17 | 17 |
Average hourly temperature in Donghol-Sigon
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 April afternoons, near 35°C, and coldest before dawn in August, near 20°C.
Donghol-Sigon 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 | 31° / 17° | 1 | 0.3 | 11.4 | 5.8 |
| Feb | 33° / 18° | 1 | 0.3 | 11.6 | 4.8 |
| Mar | 34° / 20° | 4 | 0.8 | 11.9 | 3.8 |
| Apr | 35° / 22° | 11 | 2.8 | 12.3 | 3.2 |
| May | 33° / 22° | 97 | 12.5 | 12.5 | 3.2 |
| Jun | 29° / 21° | 242 | 24.5 | 12.7 | 3.4 |
| Jul | 27° / 20° | 373 | 29.1 | 12.6 | 3.5 |
| Aug | 27° / 20° | 409 | 30 | 12.4 | 3.4 |
| Sep | 28° / 20° | 329 | 28.7 | 12.1 | 3.3 |
| Oct | 30° / 19° | 153 | 20.9 | 11.7 | 3.9 |
| Nov | 31° / 18° | 19 | 3 | 11.5 | 5.4 |
| Dec | 31° / 17° | 2 | 0.5 | 11.3 | 5.8 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Donghol-Sigon gets about 1641 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.
The wetter season lasts 5.5 months, from around May 16 to Oct 29, peaking in August at about 97% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 1.
August is the wettest month by volume, with 409 mm over about 30 wet days; January is the driest, with 1 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 1 | 1 | 2 | 10 | 41 | 80 | 94 | 97 | 95 | 66 | 13 | 2 |
| Rain days | 0 | 0 | 1 | 3 | 13 | 25 | 29 | 30 | 29 | 21 | 3 | 1 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 1 | 0 |
| Feb | 1 | 0 |
| Mar | 2 | 1 |
| Apr | 10 | 3 |
| May | 41 | 13 |
| Jun | 80 | 25 |
| Jul | 94 | 29 |
| Aug | 97 | 30 |
| Sep | 95 | 29 |
| Oct | 66 | 21 |
| Nov | 13 | 3 |
| Dec | 2 | 1 |
Monthly rainfall
Over a full year, Donghol-Sigon collects about 1641 mm of rain across 153 wet days — roughly 137 mm in an average month.
It doesn’t fall evenly. August is the wettest month with 409 mm, while January is the driest at just 1 mm. The three wettest months alone bring about 68% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 1 | 1 | 4 | 11 | 97 | 242 | 373 | 409 | 329 | 153 | 19 | 2 |
| Rain days | 0 | 0 | 1 | 3 | 13 | 25 | 29 | 30 | 29 | 21 | 3 | 1 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 1 | 0 |
| Feb | 1 | 0 |
| Mar | 4 | 1 |
| Apr | 11 | 3 |
| May | 97 | 13 |
| Jun | 242 | 25 |
| Jul | 373 | 29 |
| Aug | 409 | 30 |
| Sep | 329 | 29 |
| Oct | 153 | 21 |
| Nov | 19 | 3 |
| Dec | 2 | 1 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Donghol-Sigon, 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 October 31 and lasts for 6.5 months, ending around May 15. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 77% of the time on average.
The cloudier part of the year begins around May 16 and lasts for 5.5 months, ending around October 30. The cloudiest month is August, when it is overcast or mostly cloudy 94% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 72 | 77 | 77 | 67 | 46 | 26 | 11 | 6 | 18 | 36 | 58 | 68 |
| Cloudier (%) | 28 | 23 | 23 | 33 | 54 | 74 | 89 | 94 | 82 | 64 | 42 | 32 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 72 | 28 |
| Feb | 77 | 23 |
| Mar | 77 | 23 |
| Apr | 67 | 33 |
| May | 46 | 54 |
| Jun | 26 | 74 |
| Jul | 11 | 89 |
| Aug | 6 | 94 |
| Sep | 18 | 82 |
| Oct | 36 | 64 |
| Nov | 58 | 42 |
| Dec | 68 | 32 |
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 June 4, brings about 12 h 42 min of light; the shortest, around January 1, only 11 h 18 min — a swing of roughly 1 h 24 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.4 | 11.6 | 11.9 | 12.3 | 12.5 | 12.7 | 12.6 | 12.4 | 12.1 | 11.7 | 11.5 | 11.3 |
| Sunrise (AM) | 7:17 | 7:15 | 7:01 | 6:41 | 6:29 | 6:28 | 6:36 | 6:41 | 6:41 | 6:42 | 6:51 | 7:06 |
| Sunset (PM) | 6:39 | 6:52 | 6:56 | 6:57 | 7:01 | 7:10 | 7:13 | 7:05 | 6:45 | 6:26 | 6:18 | 6:24 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 11.4 | 7:17 | 6:39 |
| Feb | 11.6 | 7:15 | 6:52 |
| Mar | 11.9 | 7:01 | 6:56 |
| Apr | 12.3 | 6:41 | 6:57 |
| May | 12.5 | 6:29 | 7:01 |
| Jun | 12.7 | 6:28 | 7:10 |
| Jul | 12.6 | 6:36 | 7:13 |
| Aug | 12.4 | 6:41 | 7:05 |
| Sep | 12.1 | 6:41 | 6:45 |
| Oct | 11.7 | 6:42 | 6:26 |
| Nov | 11.5 | 6:51 | 6:18 |
| Dec | 11.3 | 7:06 | 6:24 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Donghol-Sigon averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 21 days.
The sunnier stretch runs 6.1 months, from around Nov 3 to May 6. The sunniest month is February, with roughly 20 sunny days (bright).
The greyest month is July, down near 0 sunny days — about 98% fewer than the February peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 18 | 18 | 19 | 14 | 8 | 3 | 0 | 0 | 1 | 5 | 12 | 16 |
| Sky | Bright | Bright | Bright | Mixed | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 18 | Bright |
| Feb | 18 | Bright |
| Mar | 19 | Bright |
| Apr | 14 | Mixed |
| May | 8 | Gloomy |
| Jun | 3 | Gloomy |
| Jul | 0 | Gloomy |
| Aug | 0 | Gloomy |
| Sep | 1 | Gloomy |
| Oct | 5 | Gloomy |
| Nov | 12 | Mixed |
| Dec | 16 | Bright |
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 Donghol-Sigon, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 6.4 months, from around May 1 to November 11. 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 12 to April 30, and January is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 96 | 92 | 75 | 36 | 5 | 0 | 0 | 0 | 0 | 1 | 32 | 90 |
| Comfortable (%) | 3 | 7 | 17 | 30 | 12 | 0 | 0 | 0 | 0 | 2 | 20 | 7 |
| Humid (%) | 0 | 1 | 6 | 22 | 22 | 2 | 0 | 0 | 0 | 5 | 23 | 3 |
| Muggy (%) | 0 | 0 | 2 | 12 | 45 | 60 | 75 | 80 | 80 | 77 | 24 | 1 |
| Oppressive (%) | 0 | 0 | 0 | 1 | 16 | 38 | 25 | 20 | 20 | 15 | 1 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 96 | 3 | 0 | 0 | 0 |
| Feb | 92 | 7 | 1 | 0 | 0 |
| Mar | 75 | 17 | 6 | 2 | 0 |
| Apr | 36 | 30 | 22 | 12 | 1 |
| May | 5 | 12 | 22 | 45 | 16 |
| Jun | 0 | 0 | 2 | 60 | 38 |
| Jul | 0 | 0 | 0 | 75 | 25 |
| Aug | 0 | 0 | 0 | 80 | 20 |
| Sep | 0 | 0 | 0 | 80 | 20 |
| Oct | 1 | 2 | 5 | 77 | 15 |
| Nov | 32 | 20 | 23 | 24 | 1 |
| Dec | 90 | 7 | 3 | 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.
Wind in Donghol-Sigon is steady company: average speeds sit near 6 km/h — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 6 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 5 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 6 | calm |
| Feb | 6 | calm |
| Mar | 7 | calm |
| Apr | 6 | calm |
| May | 6 | calm |
| Jun | 5 | calm |
| Jul | 5 | calm |
| Aug | 5 | calm |
| Sep | 4 | calm |
| Oct | 4 | calm |
| Nov | 5 | calm |
| Dec | 6 | calm |
Hazard calendar for Donghol-Sigon
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Donghol-Sigon's monsoon runs June–September, when most of the year's rain falls.
Donghol-Sigon sees seasonal dust haze (February–June), heaviest in June.
Best time to visit Donghol-Sigon
To characterize how pleasant the weather is in Donghol-Sigon throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid November, Donghol-Sigon is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
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 Donghol-Sigon for general outdoor tourist activities is from late October to mid February, with a peak score in the first 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) | 5.8 | 4.8 | 3.8 | 3.2 | 3.2 | 3.4 | 3.5 | 3.4 | 3.3 | 3.9 | 5.4 | 5.8 |
| Rating | good | fair | fair | poor | poor | poor | poor | poor | poor | fair | fair | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 5.8 | good |
| Feb | 4.8 | fair |
| Mar | 3.8 | fair |
| Apr | 3.2 | poor |
| May | 3.2 | poor |
| Jun | 3.4 | poor |
| Jul | 3.5 | poor |
| Aug | 3.4 | poor |
| Sep | 3.3 | poor |
| Oct | 3.9 | fair |
| Nov | 5.4 | fair |
| Dec | 5.8 | 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 Donghol-Sigon for hot-weather activities is from early November to early April, with a peak score in the first week of January.
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 Donghol-Sigon, 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.
For a warm-season trip around April (highs near 35°C), the essentials are light clothes and sun protection. In the cold season around August (highs near 27°C), pack light clothes and rain gear.
In April, Donghol-Sigon sees daytime highs around 35°C and nights near 22°C. Pack light clothes and sun protection.
UV index (midday) in Donghol-Sigon 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 Donghol-Sigon peaks around March 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 8 (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) | 9 | 12 | 14 | 13 | 11 | 12 | 12 | 14 | 13 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Average hourly UV index in Donghol-Sigon
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 6.5 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) | 7 | 7.5 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7.5 | 7 | 6.5 |
| UV ≥ 6 (h/day) | 5 | 5.5 | 6.5 | 6 | 6 | 6 | 6 | 6.5 | 6 | 5.5 | 4.5 | 4 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 7 | 5 |
| Feb | 7.5 | 5.5 |
| Mar | 8 | 6.5 |
| Apr | 8 | 6 |
| May | 8 | 6 |
| Jun | 8 | 6 |
| Jul | 8 | 6 |
| Aug | 8 | 6.5 |
| Sep | 8 | 6 |
| Oct | 7.5 | 5.5 |
| Nov | 7 | 4.5 |
| Dec | 6.5 | 4 |
Air quality in Donghol-Sigon 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 Donghol-Sigon is worst in December — around 77 µg/m³ PM2.5 (unhealthy), about 5.9× the cleanest month (August, 13 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) | 57 | 53 | 50 | 77 | 47 | 26 | 17 | 13 | 17 | 32 | 50 | 77 |
| Level | Unhealthy | Poor | Poor | Unhealthy | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 57 | Unhealthy |
| Feb | 53 | Poor |
| Mar | 50 | Poor |
| Apr | 77 | Unhealthy |
| May | 47 | Poor |
| Jun | 26 | Moderate |
| Jul | 17 | Moderate |
| Aug | 13 | Moderate |
| Sep | 17 | Moderate |
| Oct | 32 | Moderate |
| Nov | 50 | Poor |
| Dec | 77 | Unhealthy |
Growing season
Donghol-Sigon 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. Donghol-Sigon banks about 5,485 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 431 | 434 | 530 | 544 | 539 | 448 | 425 | 417 | 416 | 446 | 426 | 429 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 431 |
| Feb | 434 |
| Mar | 530 |
| Apr | 544 |
| May | 539 |
| Jun | 448 |
| Jul | 425 |
| Aug | 417 |
| Sep | 416 |
| Oct | 446 |
| Nov | 426 |
| Dec | 429 |
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.
Donghol-Sigon receives about 5.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.5 and 6.9 kWh/m².
The brighter stretch of the year lasts 4.7 months, from around Jan 18 to Jun 10. The brightest month is April, averaging about 6.9 kWh/m² (intense).
The dimmest month is August, down near 4.5 kWh/m² — roughly 34% less than the April peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.7 | 6.3 | 6.9 | 6.9 | 6.4 | 5.5 | 4.8 | 4.5 | 5.0 | 5.3 | 5.6 | 5.5 |
| Level | Bright | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 5.7 | Bright |
| Feb | 6.3 | Intense |
| Mar | 6.9 | Intense |
| Apr | 6.9 | Intense |
| May | 6.4 | Intense |
| Jun | 5.5 | Bright |
| Jul | 4.8 | Bright |
| Aug | 4.5 | Bright |
| Sep | 5.0 | Bright |
| Oct | 5.3 | Bright |
| Nov | 5.6 | Bright |
| Dec | 5.5 | Bright |
Where is Donghol-Sigon?
Donghol-Sigon sits at 11.8°N, 12.2°W, 940 m above sea level, in Guinea. The nearest listed city is Labé, 54 km away.
Topography around Donghol-Sigon
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Donghol-Sigon.
Within 3 km, the terrain around Donghol-Sigon has significant variations in elevation — a maximum elevation change of 353 m around an average of 885 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 861 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,449 m.
The land around Donghol-Sigon is covered by grassland (57%) and trees (34%) within 3 km, trees (49%) and grassland (45%) within 16 km, and trees (49%) and grassland (33%) within 80 km.
Guinea travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / K
- 220 V · 50 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $1,877
- 2025
- Happiness
- 4.6 / 10
- World Happiness, 2025
- Road deaths
- 29.7
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- 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 Donghol-Sigon (11.8°, -12.2167°, elevation 940 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. 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).