Climate averages 1991–2020
Zarzis weather
in September.
A hot, fairly dry month: the 3rd warmest and the joint 7th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Zarzis: daytime highs average 28.9°C and nights cool to about 24.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 16 mm of rain on roughly 2 days, which makes September a fairly dry month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Ben Gardane (42 km away). In September its highs average 31.3°C, 2.3°C warmer than Zarzis, with 16 mm of rain.
Among the 22 cities listed in Tunisia, Zarzis ranks 15th of 22 for the warmest September highs and joint 3rd of 22 for the driest September (rainfall, lowest first). The mean September high of those 22 cities is 29.5°C; Zarzis is 0.6°C cooler than that mean.
From September to October, average highs fall by 2.9°C to 26.1°C, and monthly rainfall rises from 16 mm to 25 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Zarzis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.9°C10.3°C | 10.3°C | 19 | 3.3 | 10.210 h |
| February | 16.6°C10.5°C | 10.5°C | 16 | 2.9 | 11.011 h |
| March | 18.9°C12.6°C | 12.6°C | 13 | 2.2 | 12.012 h |
| April | 21.2°C15.1°C | 15.1°C | 7.9 | 1.6 | 13.013 h |
| May | 24.0°C18.2°C | 18.2°C | 3.2 | 0.8 | 13.914 h |
| June | 27.0°C21.4°C | 21.4°C | 0.7 | 0.1 | 14.314 h |
| July | 29.6°C23.8°C | 23.8°C | 0 | 0.0 | 14.114 h |
| August | 30.6°C25.0°C | 25.0°C | 0.8 | 0.2 | 13.413 h |
| September, selected | 28.9°C24.1°C | 24.1°C | 16 | 1.8 | 12.412 h |
| October | 26.1°C20.7°C | 20.7°C | 25 | 3.7 | 11.411 h |
| November | 21.4°C15.9°C | 15.9°C | 24 | 3.9 | 10.510 h |
| December | 17.3°C12.0°C | 12.0°C | 26 | 4.6 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Ben Gardane in SeptemberTunisia · 42 kmHigh 31.3°C · Low 22.8°C · 16 mm rain
- Houmt Souk in SeptemberTunisia · 48 kmHigh 30.2°C · Low 23.9°C · 19 mm rain
- Medenine in SeptemberTunisia · 59 kmHigh 31.7°C · Low 21.7°C · 11 mm rain
- Gabès in SeptemberTunisia · 103 kmHigh 30.3°C · Low 23.7°C · 18 mm rain
- Al Jumayl in SeptemberLibya · 114 kmHigh 30.7°C · Low 23.4°C · 7.4 mm rain
- Sfax in SeptemberTunisia · 141 kmHigh 29.2°C · Low 22.7°C · 25 mm rain
- Al Ajaylat in SeptemberLibya · 144 kmHigh 31.9°C · Low 23.1°C · 9.7 mm rain
- Sakiet ed Daier in SeptemberTunisia · 146 kmHigh 29.5°C · Low 22.3°C · 25 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Zarzis) is explained once on the Zarzis year overview and on the Sources, method and limits page.