Climate averages 1991–2020
Tunis weather
in September.
A hot, fairly dry month: the 4th warmest and the 5th 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 Tunis: daytime highs average 28.8°C and nights cool to about 20.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 38 mm of rain on roughly 6 days, which makes September a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Sīdī Ḥusayn (8 km away). In September its highs average 29.4°C, 0.5°C warmer than Tunis, with 34 mm of rain.
Among the 22 cities listed in Tunisia, Tunis ranks 16th of 22 for the warmest September highs and joint 14th of 22 for the driest September (rainfall, lowest first). The mean September high of those 22 cities is 29.5°C; Tunis is 0.7°C cooler than that mean.
From September to October, average highs fall by 3.8°C to 25.0°C, and monthly rainfall rises from 38 mm to 46 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
Tunis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.1°C8.4°C | 8.4°C | 47 | 8.6 | 9.910 h |
| February | 15.4°C8.2°C | 8.2°C | 49 | 8.8 | 10.811 h |
| March | 17.9°C9.8°C | 9.8°C | 46 | 7.6 | 11.912 h |
| April | 20.6°C11.9°C | 11.9°C | 42 | 7.7 | 13.113 h |
| May | 24.7°C15.0°C | 15.0°C | 24 | 4.4 | 14.114 h |
| June | 29.3°C18.6°C | 18.6°C | 10 | 1.6 | 14.615 h |
| July | 32.4°C21.3°C | 21.3°C | 1.8 | 0.3 | 14.414 h |
| August | 32.8°C22.2°C | 22.2°C | 8.9 | 2.4 | 13.614 h |
| September, selected | 28.8°C20.4°C | 20.4°C | 38 | 5.6 | 12.512 h |
| October | 25.0°C17.4°C | 17.4°C | 46 | 7.2 | 11.311 h |
| November | 20.0°C13.2°C | 13.2°C | 46 | 7.6 | 10.210 h |
| December | 16.3°C9.8°C | 9.8°C | 46 | 8.3 | 9.710 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
- Sīdī Ḥusayn in SeptemberTunisia · 8 kmHigh 29.4°C · Low 20.3°C · 34 mm rain
- Sukrah in SeptemberTunisia · 10 kmHigh 27.8°C · Low 21.1°C · 37 mm rain
- El Mourouj in SeptemberTunisia · 12 kmHigh 29.7°C · Low 20.1°C · 38 mm rain
- La Marsa in SeptemberTunisia · 16 kmHigh 27.5°C · Low 21.3°C · 37 mm rain
- Bizerte in SeptemberTunisia · 57 kmHigh 27.0°C · Low 21.3°C · 46 mm rain
- Hammamet in SeptemberTunisia · 62 kmHigh 28.0°C · Low 21.6°C · 42 mm rain
- Nabeul in SeptemberTunisia · 65 kmHigh 27.5°C · Low 21.9°C · 41 mm rain
- Sousse in SeptemberTunisia · 118 kmHigh 30.7°C · Low 20.7°C · 47 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 Tunis) is explained once on the Tunis year overview and on the Sources, method and limits page.
El Mourouj lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.