Climate and average weather in Sirte
In Sirte, the summers are muggy, hot, dry, and clear and the winters are mild, breezy, and mostly clear.
Over the course of the year, the temperature in Sirte typically varies from 13°C to 29°C, and is rarely below 10°C or above 32°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 Sirte for warm-weather activities is from early March to early December.
- Hottest
- Aug
- 29°
- Coldest
- Jan
- 13°
- Wettest
- Jan
- 35 mm
- Driest
- Jul
- 0 mm
- Rain / yr
- 141 mm
- 28 wet days
- Daylight
- 10.0–14.0 h
- shortest–longest
- Elevation
- 17 m
- 31.2°N
- Clearest
- Jul
- 6% cloud
Sirte is coastal city in Libya.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Sirte 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 March to early December.
Temperature through the year
Daily average highs and lows in Sirte, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.3 months, from June 13 to October 20, with daily high temperatures above 26°C. The hottest month of the year in Sirte is August, with an average high of 29°C and low of 25°C.
The cool season lasts 3.5 months, from December 9 to March 23, with daily high temperatures below 19°C. The coldest month of the year in Sirte is January, with an average low of 13°C and high of 17°C.
Days typically run about 4°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 17 | 17 | 19 | 21 | 24 | 26 | 28 | 29 | 29 | 26 | 22 | 18 |
| Avg low (°C) | 13 | 13 | 14 | 16 | 19 | 22 | 24 | 25 | 24 | 22 | 18 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 17 | 13 |
| Feb | 17 | 13 |
| Mar | 19 | 14 |
| Apr | 21 | 16 |
| May | 24 | 19 |
| Jun | 26 | 22 |
| Jul | 28 | 24 |
| Aug | 29 | 25 |
| Sep | 29 | 24 |
| Oct | 26 | 22 |
| Nov | 22 | 18 |
| Dec | 18 | 14 |
Average hourly temperature in Sirte
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 29°C, and coldest before dawn in January, near 13°C.
Sirte 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 | 17° / 13° | 35 | 6.6 | 10.2 | 6.2 |
| Feb | 17° / 13° | 22 | 4.6 | 10.9 | 6.7 |
| Mar | 19° / 14° | 13 | 2.4 | 11.8 | 7.7 |
| Apr | 21° / 16° | 4 | 1.1 | 12.7 | 8.4 |
| May | 24° / 19° | 3 | 0.5 | 13.6 | 9.1 |
| Jun | 26° / 22° | 1 | 0.1 | 14 | 9.1 |
| Jul | 28° / 24° | 0 | 0 | 13.8 | 8.6 |
| Aug | 29° / 25° | 0 | 0.1 | 13.1 | 7.7 |
| Sep | 29° / 24° | 4 | 0.8 | 12.2 | 7.8 |
| Oct | 26° / 22° | 14 | 2.6 | 11.2 | 8.3 |
| Nov | 22° / 18° | 16 | 3.4 | 10.4 | 8.1 |
| Dec | 18° / 14° | 30 | 6 | 10 | 6.9 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Sirte gets about 141 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 5.3 months, from around Oct 6 to Mar 16, peaking in January at about 24% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 22.
January is the wettest month by volume, with 35 mm over about 7 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 (%) | 21 | 16 | 8 | 4 | 2 | 0 | 0 | 1 | 2 | 9 | 12 | 19 |
| Rain days | 7 | 5 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 3 | 6 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 21 | 7 |
| Feb | 16 | 5 |
| Mar | 8 | 2 |
| Apr | 4 | 1 |
| May | 2 | 1 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 1 | 0 |
| Sep | 2 | 1 |
| Oct | 9 | 3 |
| Nov | 12 | 3 |
| Dec | 19 | 6 |
Monthly rainfall
Over a full year, Sirte collects about 141 mm of rain across 28 wet days — roughly 12 mm in an average month.
It doesn’t fall evenly. January is the wettest month with 35 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 62% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 35 | 22 | 13 | 4 | 3 | 1 | 0 | 0 | 4 | 14 | 16 | 30 |
| Rain days | 7 | 5 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 3 | 6 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 35 | 7 |
| Feb | 22 | 5 |
| Mar | 13 | 2 |
| Apr | 4 | 1 |
| May | 3 | 1 |
| Jun | 1 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 4 | 1 |
| Oct | 14 | 3 |
| Nov | 16 | 3 |
| Dec | 30 | 6 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Sirte, 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 June 4 and lasts for 4.2 months, ending around October 10. 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 11 and lasts for 7.8 months, ending around June 3. The cloudiest month is December, when it is overcast or mostly cloudy 26% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 78 | 80 | 83 | 81 | 79 | 93 | 100 | 100 | 95 | 84 | 77 | 74 |
| Cloudier (%) | 22 | 20 | 17 | 19 | 21 | 7 | 0 | 0 | 5 | 16 | 23 | 26 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 78 | 22 |
| Feb | 80 | 20 |
| Mar | 83 | 17 |
| Apr | 81 | 19 |
| May | 79 | 21 |
| Jun | 93 | 7 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 95 | 5 |
| Oct | 84 | 16 |
| Nov | 77 | 23 |
| Dec | 74 | 26 |
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 8, brings about 14 hours of light; the shortest, around January 1, only 10 hours — a swing of roughly 4 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.2 | 10.9 | 11.8 | 12.7 | 13.6 | 14.0 | 13.8 | 13.1 | 12.2 | 11.2 | 10.4 | 10.0 |
| Sunrise (AM) | 7:58 | 7:42 | 7:10 | 6:31 | 6:02 | 5:53 | 6:04 | 6:23 | 6:42 | 7:02 | 7:27 | 7:50 |
| Sunset (PM) | 6:08 | 6:34 | 6:56 | 7:17 | 7:37 | 7:54 | 7:55 | 7:32 | 6:54 | 6:15 | 5:51 | 5:49 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 10.2 | 7:58 | 6:08 |
| Feb | 10.9 | 7:42 | 6:34 |
| Mar | 11.8 | 7:10 | 6:56 |
| Apr | 12.7 | 6:31 | 7:17 |
| May | 13.6 | 6:02 | 7:37 |
| Jun | 14.0 | 5:53 | 7:54 |
| Jul | 13.8 | 6:04 | 7:55 |
| Aug | 13.1 | 6:23 | 7:32 |
| Sep | 12.2 | 6:42 | 6:54 |
| Oct | 11.2 | 7:02 | 6:15 |
| Nov | 10.4 | 7:27 | 5:51 |
| Dec | 10.0 | 7:50 | 5:49 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Sirte averages about 22 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 15 and 30 days.
The sunnier stretch runs 4.3 months, from around May 30 to Oct 7. The sunniest month is July, with roughly 30 sunny days (brilliant).
The greyest month is December, down near 16 sunny days — about 48% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 17 | 18 | 22 | 21 | 22 | 27 | 31 | 31 | 27 | 22 | 18 | 16 |
| Sky | Bright | Bright | Bright | Bright | Bright | Brilliant | Brilliant | Brilliant | Brilliant | Bright | Bright | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 17 | Bright |
| Feb | 18 | Bright |
| Mar | 22 | Bright |
| Apr | 21 | Bright |
| May | 22 | Bright |
| Jun | 27 | Brilliant |
| Jul | 31 | Brilliant |
| Aug | 31 | Brilliant |
| Sep | 27 | Brilliant |
| Oct | 22 | Bright |
| Nov | 18 | Bright |
| 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 Sirte, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 5.4 months, from around May 21 to November 1. The muggiest month is July, when the air feels humid, muggy or worse about 99% of the time.
The most comfortable stretch runs from around November 2 to May 20, 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 | 99 | 92 | 69 | 22 | 2 | 0 | 0 | 0 | 8 | 51 | 92 |
| Comfortable (%) | 1 | 1 | 8 | 29 | 44 | 13 | 1 | 0 | 3 | 22 | 32 | 8 |
| Humid (%) | 0 | 0 | 0 | 2 | 31 | 39 | 11 | 3 | 14 | 39 | 15 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 3 | 38 | 43 | 32 | 52 | 26 | 2 | 0 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 8 | 43 | 60 | 30 | 4 | 0 | 0 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 1 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 99 | 1 | 0 | 0 | 0 | 0 |
| Feb | 99 | 1 | 0 | 0 | 0 | 0 |
| Mar | 92 | 8 | 0 | 0 | 0 | 0 |
| Apr | 69 | 29 | 2 | 0 | 0 | 0 |
| May | 22 | 44 | 31 | 3 | 0 | 0 |
| Jun | 2 | 13 | 39 | 38 | 8 | 0 |
| Jul | 0 | 1 | 11 | 43 | 43 | 2 |
| Aug | 0 | 0 | 3 | 32 | 60 | 5 |
| Sep | 0 | 3 | 14 | 52 | 30 | 1 |
| Oct | 8 | 22 | 39 | 26 | 4 | 0 |
| Nov | 51 | 32 | 15 | 2 | 0 | 0 |
| Dec | 92 | 8 | 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 Sirte is typically light breeze, near 19 km/h, and varies moderately with the seasons.
The windier part of the year lasts 6.4 months, from around Nov 24 to Jun 5. The windiest month is December, averaging about 21 km/h (breezy).
The calmer part of the year runs from around Jun 6 to Nov 23, 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) | 21 | 21 | 21 | 21 | 20 | 18 | 16 | 16 | 17 | 17 | 18 | 21 |
| 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 | 21 | breezy |
| Feb | 21 | breezy |
| Mar | 21 | breezy |
| Apr | 21 | breezy |
| May | 20 | light breeze |
| Jun | 18 | light breeze |
| Jul | 16 | light breeze |
| Aug | 16 | light breeze |
| Sep | 17 | light breeze |
| Oct | 17 | light breeze |
| Nov | 18 | light breeze |
| Dec | 21 | breezy |
Hazard calendar for Sirte
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Sirte sees seasonal dust haze (March–June), heaviest in April.
Best time to visit Sirte
To characterize how pleasant the weather is in Sirte throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late November, Sirte 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 Sirte for general outdoor tourist activities is from early March to early December, 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) | 6.2 | 6.7 | 7.7 | 8.4 | 9.0 | 9.1 | 8.6 | 7.7 | 7.8 | 8.3 | 8.1 | 6.9 |
| Rating | good | good | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 6.2 | good |
| Feb | 6.7 | good |
| Mar | 7.7 | ideal |
| Apr | 8.4 | ideal |
| May | 9.0 | ideal |
| Jun | 9.1 | ideal |
| Jul | 8.6 | ideal |
| Aug | 7.7 | ideal |
| Sep | 7.8 | ideal |
| Oct | 8.3 | ideal |
| Nov | 8.1 | ideal |
| Dec | 6.9 | 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 Sirte for hot-weather activities is from late May to late October, with a peak score in the second 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 Sirte, 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 29°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 17°C), pack a warm layer and a windbreaker.
In August, Sirte sees daytime highs around 29°C and nights near 25°C. Pack light clothes and sun protection.
Sea temperature near Sirte
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 19 km away) is warmest in August at about 28°C and coldest in March near 17°C.
It's comfortable for a long swim from May 19 to Dec 16 — about 7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 17 | 17 | 18 | 20 | 23 | 26 | 28 | 27 | 25 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 17 | Cool |
| Mar | 17 | Cool |
| Apr | 18 | Cool |
| May | 20 | Cool |
| Jun | 23 | Refreshing |
| Jul | 26 | Warm |
| Aug | 28 | Warm |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Refreshing |
UV index (midday) in Sirte 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 Sirte peaks around August 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 7 | 7 | 8 | 10 | 10 | 10 | 9 | 7 | 4 | 3 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 7 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Extreme |
| Sep | 9 | Very high |
| Oct | 7 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Average hourly UV index in Sirte
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 August the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 5.5 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) | 1 | 4.5 | 6 | 6.5 | 7.5 | 8 | 8.5 | 8 | 7 | 6 | 4 | 2 |
| UV ≥ 6 (h/day) | 0 | 0 | 2.5 | 3 | 4 | 5.5 | 6 | 5.5 | 4.5 | 2.5 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 1 | 0 |
| Feb | 4.5 | 0 |
| Mar | 6 | 2.5 |
| Apr | 6.5 | 3 |
| May | 7.5 | 4 |
| Jun | 8 | 5.5 |
| Jul | 8.5 | 6 |
| Aug | 8 | 5.5 |
| Sep | 7 | 4.5 |
| Oct | 6 | 2.5 |
| Nov | 4 | 0 |
| Dec | 2 | 0 |
Air quality in Sirte 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 Sirte is worst in April — around 37 µg/m³ PM2.5 (poor), about 4.6× the cleanest month (August, 8 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) | 30 | 29 | 32 | 37 | 26 | 12 | 8 | 8 | 12 | 20 | 24 | 23 |
| Level | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 30 | Moderate |
| Feb | 29 | Moderate |
| Mar | 32 | Moderate |
| Apr | 37 | Poor |
| May | 26 | Moderate |
| Jun | 12 | Moderate |
| Jul | 8 | Good |
| Aug | 8 | Good |
| Sep | 12 | Good |
| Oct | 20 | Moderate |
| Nov | 24 | Moderate |
| Dec | 23 | Moderate |
Growing season
Sirte 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. Sirte banks about 3,952 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) | 145 | 137 | 197 | 259 | 347 | 415 | 496 | 528 | 494 | 436 | 302 | 197 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 145 |
| Feb | 137 |
| Mar | 197 |
| Apr | 259 |
| May | 347 |
| Jun | 415 |
| Jul | 496 |
| Aug | 528 |
| Sep | 494 |
| Oct | 436 |
| Nov | 302 |
| 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.
Sirte receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.9 and 7.7 kWh/m².
The brighter stretch of the year lasts 6.4 months, from around Mar 15 to Sep 24. The brightest month is June, averaging about 7.6 kWh/m² (intense).
The dimmest month is December, down near 3.0 kWh/m² — roughly 60% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.4 | 4.3 | 5.5 | 6.6 | 7.1 | 7.6 | 7.5 | 6.9 | 5.9 | 4.5 | 3.5 | 3.0 |
| Level | Moderate | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 3.4 | Moderate |
| Feb | 4.3 | Bright |
| Mar | 5.5 | Bright |
| Apr | 6.6 | Intense |
| May | 7.1 | Intense |
| Jun | 7.6 | Intense |
| Jul | 7.5 | Intense |
| Aug | 6.9 | Intense |
| Sep | 5.9 | Bright |
| Oct | 4.5 | Bright |
| Nov | 3.5 | Moderate |
| Dec | 3.0 | Moderate |
Where is Sirte?
Sirte sits at 31.2°N, 16.6°E, 17 m above sea level, in Libya. The nearest listed city is Bin Jawwād, 149 km away.
Topography around Sirte
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sirte.
Within 3 km, the terrain around Sirte has only modest variations in elevation — a maximum elevation change of 42 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 84 m; within 80 km, only modest variations in elevation — a maximum elevation change of 218 m.
The land around Sirte is covered by water (44%) and artificial surfaces (34%) within 3 km, water (48%) and bare terrain (27%) within 16 km, and bare terrain (61%) and water (34%) 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 Sirte (31.2089°, 16.5887°, elevation 17 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).