Climate averages 1991–2020
Monastir weather
in September.
A hot, moderately wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Monastir: daytime highs average 29.9°C and nights cool to about 21.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 47 mm of rain on roughly 5 days, which makes September a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Sousse (18 km away). In September its highs average 30.7°C, 0.8°C warmer than Monastir, with 47 mm of rain.
Among the 22 cities listed in Tunisia, Monastir ranks 9th of 22 for the warmest September highs and joint 21st of 22 for the driest September (rainfall, lowest first). The mean September high of those 22 cities is 29.5°C; Monastir is 0.4°C warmer than that mean.
From September to October, average highs fall by 3.8°C to 26.1°C, and monthly rainfall falls from 47 mm to 45 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
Monastir climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 16.4°C8.3°C | 8.3°C | 33 | 5.3 | 10.010 h |
| February | 17.0°C8.3°C | 8.3°C | 27 | 5.3 | 10.911 h |
| March | 19.7°C10.1°C | 10.1°C | 38 | 6.0 | 11.912 h |
| April | 22.3°C12.3°C | 12.3°C | 24 | 5.3 | 13.113 h |
| May | 26.2°C15.5°C | 15.5°C | 15 | 3.1 | 14.014 h |
| June | 30.4°C19.1°C | 19.1°C | 6.3 | 1.5 | 14.515 h |
| July | 33.5°C21.9°C | 21.9°C | 1.4 | 0.3 | 14.314 h |
| August | 33.8°C22.8°C | 22.8°C | 9.4 | 1.4 | 13.514 h |
| September, selected | 29.9°C21.2°C | 21.2°C | 47 | 5.4 | 12.412 h |
| October | 26.1°C17.9°C | 17.9°C | 45 | 6.8 | 11.311 h |
| November | 21.2°C13.4°C | 13.4°C | 33 | 5.2 | 10.310 h |
| December | 17.5°C9.7°C | 9.7°C | 33 | 5.5 | 9.810 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
- Sousse in SeptemberTunisia · 18 kmHigh 30.7°C · Low 20.7°C · 47 mm rain
- Msaken in SeptemberTunisia · 23 kmHigh 31.0°C · Low 20.3°C · 41 mm rain
- Kairouan in SeptemberTunisia · 67 kmHigh 31.2°C · Low 19.6°C · 37 mm rain
- Hammamet in SeptemberTunisia · 72 kmHigh 28.0°C · Low 21.6°C · 42 mm rain
- Nabeul in SeptemberTunisia · 76 kmHigh 27.5°C · Low 21.9°C · 41 mm rain
- Sakiet ed Daier in SeptemberTunisia · 109 kmHigh 29.5°C · Low 22.3°C · 25 mm rain
- Sfax in SeptemberTunisia · 116 kmHigh 29.2°C · Low 22.7°C · 25 mm rain
- El Mourouj in SeptemberTunisia · 118 kmHigh 29.7°C · Low 20.1°C · 38 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 Monastir) is explained once on the Monastir year overview and on the Sources, method and limits page.
Sousse lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.