Surman climate by month
What the weather is like
Surman has a hot semi-arid climate (Köppen BSh): little rain, large day–night swings and strong sunshine.
The warmest month is August, when afternoons average 34° and nights 23°. January is the coolest month, with highs of 18° and lows of 9°. The difference between the warmest and the coolest month is about 15°.
About 278 mm of precipitation falls in an average year. December is the wettest month (66 mm, 10 wet days) and July the driest (0 mm, 0 wet days). Cloud cover ranges from 2% in July to 24% in December.
The sea reaches about 27° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Tripoli, the capital, Surman is 3.3° warmer on a August afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 34° · August
- Coldest nights
- 9° · January
- Wettest month
- December
- Driest month
- July
- Clearest skies
- July · 2% cloud
- Warmest sea
- 27° · August
- Longest day
- 14 h 18 min
- Shortest day
- 10 h 01 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 18° | 20° | 22° | 25° | 28° | 31° | 33° | 34° | 32° | 29° | 24° | 20° |
| Average low | 9° | 9° | 11° | 14° | 17° | 21° | 23° | 23° | 23° | 19° | 14° | 10° |
| Precipitation | 58 mm | 27 mm | 19 mm | 8 mm | 4 mm | 1 mm | 0 mm | 1 mm | 9 mm | 33 mm | 52 mm | 66 mm |
| Wet days (≥1 mm) | 7.2 | 4.3 | 3 | 1.3 | 2.3 | 1 | 0 | 0.8 | 4.5 | 5.7 | 4.2 | 9.5 |
| Cloud cover | 22% | 19% | 20% | 20% | 21% | 9% | 2% | 3% | 11% | 21% | 23% | 24% |
| Sea temperature | 17° | 16° | 16° | 17° | 19° | 22° | 26° | 27° | 27° | 25° | 23° | 20° |
| Daylight | 10h 13 | 11h 01 | 11h 57 | 12h 59 | 13h 50 | 14h 18 | 14h 07 | 13h 23 | 12h 24 | 11h 24 | 10h 29 | 10h 01 |
| Month score | 83 | 90 | 93 | 97 | 80 | 72 | 67 | 62 | 60 | 69 | 90 | 78 |