Climate and average weather in Tripoli
In Tripoli, the summers are muggy, warm, dry, and clear and the winters are mild, breezy, and mostly clear.
Over the course of the year, the temperature in Tripoli typically varies from 13°C to 28°C, and is rarely below 11°C or above 30°C. August is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Tripoli for warm-weather activities is from mid April to early November.
- Hottest
- Aug
- 28°
- Coldest
- Jan
- 13°
- Wettest
- Jan
- 75 mm
- Driest
- Jul
- 0 mm
- Rain / yr
- 324 mm
- 44 wet days
- Daylight
- 9.8–14.2 h
- shortest–longest
- Elevation
- 15 m
- 32.9°N
- Clearest
- Jul
- 4% cloud
Tripoli is capital city of Libya.
- Density
- 417/km²
- people per km²
- Founded
- ~601 BCE
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Tripoli 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 mid April to early November.
Temperature through the year
Daily average highs and lows in Tripoli, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 3.8 months, from June 23 to October 17, with daily high temperatures above 25°C. The hottest month of the year in Tripoli is August, with an average high of 28°C and low of 26°C.
The cool season lasts 3.7 months, from December 10 to April 1, with daily high temperatures below 18°C. The coldest month of the year in Tripoli is January, with an average low of 13°C and high of 16°C.
Days typically run about 3°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 16 | 16 | 17 | 19 | 22 | 24 | 27 | 28 | 27 | 25 | 21 | 18 |
| Avg low (°C) | 13 | 13 | 14 | 16 | 19 | 22 | 24 | 26 | 25 | 22 | 19 | 15 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 16 | 13 |
| Feb | 16 | 13 |
| Mar | 17 | 14 |
| Apr | 19 | 16 |
| May | 22 | 19 |
| Jun | 24 | 22 |
| Jul | 27 | 24 |
| Aug | 28 | 26 |
| Sep | 27 | 25 |
| Oct | 25 | 22 |
| Nov | 21 | 19 |
| Dec | 18 | 15 |
Average hourly temperature in Tripoli
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 August afternoons, near 28°C, and coldest before dawn in January, near 13°C.
Tripoli 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 | 16° / 13° | 75 | 9.2 | 10.1 | 5.4 |
| Feb | 16° / 13° | 51 | 6.5 | 10.8 | 5.7 |
| Mar | 17° / 14° | 22 | 3.9 | 11.7 | 6.8 |
| Apr | 19° / 16° | 12 | 1.9 | 12.8 | 7.8 |
| May | 22° / 19° | 4 | 0.7 | 13.7 | 8.6 |
| Jun | 24° / 22° | 1 | 0.2 | 14.1 | 9.4 |
| Jul | 27° / 24° | 0 | 0 | 13.9 | 9.2 |
| Aug | 28° / 26° | 1 | 0.2 | 13.2 | 8.6 |
| Sep | 27° / 25° | 10 | 1.7 | 12.2 | 8.4 |
| Oct | 25° / 22° | 26 | 3.9 | 11.2 | 8.2 |
| Nov | 21° / 19° | 51 | 6.8 | 10.3 | 7.4 |
| Dec | 18° / 15° | 72 | 9.4 | 9.9 | 6.1 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Tripoli gets about 324 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 5.1 months, from around Oct 16 to Mar 19, peaking in December at about 33% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 17.
January is the wettest month by volume, with 75 mm over about 9 wet days; July is the driest, with 0 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 30 | 23 | 13 | 6 | 2 | 0 | 0 | 1 | 5 | 13 | 22 | 30 |
| Rain days | 9 | 7 | 4 | 2 | 1 | 0 | 0 | 0 | 2 | 4 | 7 | 9 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 30 | 9 |
| Feb | 23 | 7 |
| Mar | 13 | 4 |
| Apr | 6 | 2 |
| May | 2 | 1 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 1 | 0 |
| Sep | 5 | 2 |
| Oct | 13 | 4 |
| Nov | 22 | 7 |
| Dec | 30 | 9 |
Monthly rainfall
Over a full year, Tripoli collects about 324 mm of rain across 44 wet days — roughly 27 mm in an average month.
It doesn’t fall evenly. January is the wettest month with 75 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 61% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 75 | 51 | 22 | 12 | 4 | 1 | 0 | 1 | 10 | 26 | 51 | 72 |
| Rain days | 9 | 7 | 4 | 2 | 1 | 0 | 0 | 0 | 2 | 4 | 7 | 9 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 75 | 9 |
| Feb | 51 | 7 |
| Mar | 22 | 4 |
| Apr | 12 | 2 |
| May | 4 | 1 |
| Jun | 1 | 0 |
| Jul | 0 | 0 |
| Aug | 1 | 0 |
| Sep | 10 | 2 |
| Oct | 26 | 4 |
| Nov | 51 | 7 |
| Dec | 72 | 9 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Tripoli, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.
The clearer part of the year begins around May 28 and lasts for 4.2 months, ending around October 1. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 100% of the time on average.
The cloudier part of the year begins around October 2 and lasts for 7.8 months, ending around May 27. The cloudiest month is December, when it is overcast or mostly cloudy 29% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 74 | 79 | 79 | 81 | 82 | 93 | 100 | 99 | 91 | 78 | 73 | 71 |
| Cloudier (%) | 26 | 21 | 21 | 19 | 18 | 7 | 0 | 1 | 9 | 22 | 27 | 29 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 74 | 26 |
| Feb | 79 | 21 |
| Mar | 79 | 21 |
| Apr | 81 | 19 |
| May | 82 | 18 |
| Jun | 93 | 7 |
| Jul | 100 | 0 |
| Aug | 99 | 1 |
| Sep | 91 | 9 |
| Oct | 78 | 22 |
| Nov | 73 | 27 |
| Dec | 71 | 29 |
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 15, brings about 14 h 12 min of light; the shortest, around December 15, only 9 h 48 min — a swing of roughly 4 h 24 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.1 | 10.8 | 11.7 | 12.8 | 13.7 | 14.1 | 13.9 | 13.2 | 12.2 | 11.2 | 10.3 | 9.9 |
| Sunrise (AM) | 8:15 | 7:58 | 7:24 | 6:43 | 6:13 | 6:03 | 6:14 | 6:35 | 6:56 | 7:17 | 7:44 | 8:08 |
| Sunset (PM) | 6:18 | 6:46 | 7:09 | 7:32 | 7:54 | 8:12 | 8:12 | 7:48 | 7:08 | 6:27 | 6:01 | 5:59 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 10.1 | 8:15 | 6:18 |
| Feb | 10.8 | 7:58 | 6:46 |
| Mar | 11.7 | 7:24 | 7:09 |
| Apr | 12.8 | 6:43 | 7:32 |
| May | 13.7 | 6:13 | 7:54 |
| Jun | 14.1 | 6:03 | 8:12 |
| Jul | 13.9 | 6:14 | 8:12 |
| Aug | 13.2 | 6:35 | 7:48 |
| Sep | 12.2 | 6:56 | 7:08 |
| Oct | 11.2 | 7:17 | 6:27 |
| Nov | 10.3 | 7:44 | 6:01 |
| Dec | 9.9 | 8:08 | 5:59 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Tripoli averages about 21 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 14 and 30 days.
The sunnier stretch runs 5.0 months, from around May 2 to Oct 1. The sunniest month is July, with roughly 30 sunny days (brilliant).
The greyest month is December, down near 14 sunny days — about 53% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 15 | 17 | 20 | 20 | 22 | 26 | 31 | 30 | 25 | 19 | 16 | 14 |
| Sky | Bright | Bright | Bright | Bright | Bright | Brilliant | Brilliant | Brilliant | Brilliant | Bright | Bright | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 15 | Bright |
| Feb | 17 | Bright |
| Mar | 20 | Bright |
| Apr | 20 | Bright |
| May | 22 | Bright |
| Jun | 26 | Brilliant |
| Jul | 31 | Brilliant |
| Aug | 30 | Brilliant |
| Sep | 25 | Brilliant |
| Oct | 19 | Bright |
| Nov | 16 | Bright |
| 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 Tripoli, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 5.6 months, from around May 19 to November 4. The muggiest month is July, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around November 5 to May 18, 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 (%) | 99 | 98 | 87 | 58 | 13 | 0 | 0 | 0 | 0 | 4 | 44 | 90 |
| Comfortable (%) | 1 | 2 | 13 | 38 | 45 | 7 | 0 | 0 | 1 | 16 | 35 | 10 |
| Humid (%) | 0 | 0 | 0 | 4 | 37 | 39 | 6 | 1 | 12 | 38 | 17 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 4 | 45 | 42 | 24 | 41 | 32 | 4 | 0 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 9 | 49 | 66 | 41 | 10 | 0 | 0 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 5 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 99 | 1 | 0 | 0 | 0 | 0 |
| Feb | 98 | 2 | 0 | 0 | 0 | 0 |
| Mar | 87 | 13 | 0 | 0 | 0 | 0 |
| Apr | 58 | 38 | 4 | 0 | 0 | 0 |
| May | 13 | 45 | 37 | 4 | 0 | 0 |
| Jun | 0 | 7 | 39 | 45 | 9 | 0 |
| Jul | 0 | 0 | 6 | 42 | 49 | 3 |
| Aug | 0 | 0 | 1 | 24 | 66 | 9 |
| Sep | 0 | 1 | 12 | 41 | 41 | 5 |
| Oct | 4 | 16 | 38 | 32 | 10 | 0 |
| Nov | 44 | 35 | 17 | 4 | 0 | 0 |
| Dec | 90 | 10 | 0 | 0 | 0 | 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 Tripoli is typically light breeze, near 19 km/h, and varies moderately with the seasons.
The windier part of the year lasts 6.7 months, from around Nov 15 to Jun 6. The windiest month is December, averaging about 22 km/h (breezy).
The calmer part of the year runs from around Jun 7 to Nov 14, with August the calmest month at about 16 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 22 | 21 | 20 | 20 | 20 | 18 | 16 | 16 | 18 | 17 | 19 | 22 |
| Feels | breezy | breezy | breezy | breezy | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 22 | breezy |
| Feb | 21 | breezy |
| Mar | 20 | breezy |
| Apr | 20 | breezy |
| May | 20 | light breeze |
| Jun | 18 | light breeze |
| Jul | 16 | light breeze |
| Aug | 16 | light breeze |
| Sep | 18 | light breeze |
| Oct | 17 | light breeze |
| Nov | 19 | light breeze |
| Dec | 22 | breezy |
Hazard calendar for Tripoli
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Tripoli sees seasonal dust haze (March–June), heaviest in April.
Best time to visit Tripoli
To characterize how pleasant the weather is in Tripoli throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late October, Tripoli 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 Tripoli for general outdoor tourist activities is from early April to mid November, with a peak score in the third week of June.
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) | 5.4 | 5.7 | 6.8 | 7.8 | 8.6 | 9.4 | 9.2 | 8.6 | 8.4 | 8.2 | 7.4 | 6.1 |
| Rating | fair | good | good | ideal | ideal | ideal | ideal | ideal | ideal | ideal | good | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 5.4 | fair |
| Feb | 5.7 | good |
| Mar | 6.8 | good |
| Apr | 7.8 | ideal |
| May | 8.6 | ideal |
| Jun | 9.4 | ideal |
| Jul | 9.2 | ideal |
| Aug | 8.6 | ideal |
| Sep | 8.4 | ideal |
| Oct | 8.2 | ideal |
| Nov | 7.4 | good |
| Dec | 6.1 | 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 Tripoli for hot-weather activities is from early June to mid October, with a peak score in the third week of August.
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 Tripoli, 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 August (highs near 28°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 16°C), pack a warm layer, rain gear and a windbreaker.
In August, Tripoli sees daytime highs around 28°C and nights near 26°C. Pack light clothes and sun protection.
Sea temperature near Tripoli
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 August at about 27°C and coldest in February near 16°C.
It's comfortable for a long swim from May 26 to Dec 11 — about 6.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 17 | 16 | 16 | 17 | 19 | 22 | 25 | 27 | 27 | 25 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Warm | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 17 | Cool |
| Feb | 16 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 27 | Warm |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Cool |
UV index (midday) in Tripoli 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 Tripoli peaks around June 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 7 | 6 | 7 | 11 | 9 | 10 | 8 | 7 | 4 | 3 |
| Level | Moderate | Moderate | High | High | High | Extreme | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 7 | High |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 11 | Extreme |
| Jul | 9 | Very high |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 7 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Average hourly UV index in Tripoli
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 June the burn window is concentrated in the middle of the day: about 8.5 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) | 0 | 4.5 | 6 | 6 | 7 | 8.5 | 8 | 8 | 7 | 6 | 3 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 2 | 1 | 3.5 | 6 | 5.5 | 5.5 | 4 | 2 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 4.5 | 0 |
| Mar | 6 | 2 |
| Apr | 6 | 1 |
| May | 7 | 3.5 |
| Jun | 8.5 | 6 |
| Jul | 8 | 5.5 |
| Aug | 8 | 5.5 |
| Sep | 7 | 4 |
| Oct | 6 | 2 |
| Nov | 3 | 0 |
| Dec | 0 | 0 |
Air quality in Tripoli 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 Tripoli is worst in April — around 38 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 15 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) | 36 | 35 | 37 | 38 | 28 | 20 | 15 | 15 | 20 | 26 | 32 | 32 |
| Level | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 36 | Poor |
| Feb | 35 | Poor |
| Mar | 37 | Poor |
| Apr | 38 | Poor |
| May | 28 | Moderate |
| Jun | 20 | Moderate |
| Jul | 15 | Moderate |
| Aug | 15 | Moderate |
| Sep | 20 | Moderate |
| Oct | 26 | Moderate |
| Nov | 32 | Moderate |
| Dec | 32 | Moderate |
Growing season
Tripoli 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. Tripoli banks about 3,789 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 144 | 128 | 177 | 228 | 314 | 392 | 482 | 521 | 485 | 425 | 297 | 197 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 144 |
| Feb | 128 |
| Mar | 177 |
| Apr | 228 |
| May | 314 |
| Jun | 392 |
| Jul | 482 |
| Aug | 521 |
| Sep | 485 |
| Oct | 425 |
| Nov | 297 |
| Dec | 197 |
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.
Tripoli receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.6 and 7.7 kWh/m².
The brighter stretch of the year lasts 6.3 months, from around Mar 16 to Sep 22. The brightest month is July, averaging about 7.6 kWh/m² (intense).
The dimmest month is December, down near 2.7 kWh/m² — roughly 64% less than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.1 | 4.0 | 5.3 | 6.5 | 7.0 | 7.5 | 7.6 | 6.8 | 5.6 | 4.3 | 3.2 | 2.6 |
| Level | Moderate | Moderate | Bright | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 3.1 | Moderate |
| Feb | 4.0 | Moderate |
| Mar | 5.3 | Bright |
| Apr | 6.5 | Intense |
| May | 7.0 | Intense |
| Jun | 7.5 | Intense |
| Jul | 7.6 | Intense |
| Aug | 6.8 | Intense |
| Sep | 5.6 | Bright |
| Oct | 4.3 | Bright |
| Nov | 3.2 | Moderate |
| Dec | 2.6 | Moderate |
Where is Tripoli?
Tripoli sits at 32.9°N, 13.2°E, 15 m above sea level, in Libya. The nearest listed city is Tājūrā’, 15 km away.
Topography around Tripoli
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tripoli.
Within 3 km, the terrain around Tripoli has only modest variations in elevation — a maximum elevation change of 37 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, large variations in elevation — a maximum elevation change of 723 m.
The land around Tripoli is covered by artificial surfaces (62%) and water (27%) within 3 km, water (50%) and artificial surfaces (34%) within 16 km, and water (38%) and grassland (32%) within 80 km.
Libya travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F / L
- 230 V · 50 Hz
- Prices
- ≈ 39% of US
- price level, 2025
- GDP per capita
- $6,449
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Road deaths
- 21.3
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 395
- 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 Tripoli (32.8874°, 13.1873°, elevation 15 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. 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).