Mareth climate by month
What the weather is like
Mareth has a hot desert climate (Köppen BWh): very little rain and intense sun.
The warmest month is August, when afternoons average 36° and nights 25°. January is the coolest month, with highs of 18° and lows of 8°. The difference between the warmest and the coolest month is about 17°.
About 185 mm of precipitation falls in an average year. September is the wettest month (19 mm, 5 wet days) and July the driest (0 mm, 0 wet days). Cloud cover ranges from 3% in July to 23% in October.
The sea reaches about 29° 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 Tunis, the capital, Mareth is 0° warmer on a August afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 36° · August
- Coldest nights
- 8° · January
- Wettest month
- September
- Driest month
- July
- Clearest skies
- July · 3% cloud
- Warmest sea
- 29° · August
- Longest day
- 14 h 22 min
- Shortest day
- 9 h 56 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° | 19° | 22° | 25° | 28° | 32° | 35° | 36° | 33° | 29° | 24° | 19° |
| Average low | 8° | 9° | 12° | 14° | 18° | 21° | 24° | 25° | 23° | 19° | 14° | 10° |
| Precipitation | 25 mm | 14 mm | 18 mm | 13 mm | 7 mm | 2 mm | 0 mm | 2 mm | 19 mm | 29 mm | 24 mm | 32 mm |
| Wet days (≥1 mm) | 3.7 | 2.8 | 2.8 | 2.2 | 2.5 | 1.2 | 0.2 | 0.8 | 4.7 | 2.5 | 3.2 | 4.2 |
| Cloud cover | 21% | 18% | 20% | 20% | 21% | 11% | 3% | 4% | 14% | 23% | 21% | 21% |
| Sea temperature | 15° | 14° | 15° | 18° | 21° | 24° | 27° | 29° | 28° | 25° | 22° | 17° |
| Daylight | 10h 10 | 10h 59 | 11h 56 | 13h 00 | 13h 53 | 14h 22 | 14h 11 | 13h 25 | 12h 25 | 11h 23 | 10h 26 | 9h 56 |
| Month score | 89 | 93 | 93 | 95 | 80 | 69 | 58 | 56 | 57 | 78 | 92 | 90 |