Santo Tomé in September
7.4out of 10
Possible, with caveats
Warm and comfortable: highs around 24°C. Frequent rain: about 10 rainy days.
24°CAvg high
14°CAvg low
10Rainy days (154 mm)
11:50 hDaylight
06:43Sunrise · 18:34 Sunset
Why this score
- Warm and comfortable: highs around 24°C
- Frequent rain: about 10 rainy days
What to wear and pack
- T-shirts and light layers
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.2 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 32°C | 22°C | 160 mm | 12 | – | – | 6.2 |
| February | 31°C | 21°C | 133 mm | 12 | – | – | 6.7 |
| March | 30°C | 20°C | 128 mm | 10 | – | – | 7.2 |
| April | 27°C | 17°C | 168 mm | 10 | – | – | 7.3 |
| May | 23°C | 14°C | 121 mm | 8 | – | – | 7.8 |
| June | 21°C | 12°C | 114 mm | 9 | – | – | 7.5 |
| July | 20°C | 11°C | 117 mm | 9 | – | – | 7.5 |
| August | 23°C | 12°C | 100 mm | 8 | – | – | 7.9 |
| September | 24°C | 14°C | 154 mm | 10 | – | – | 7.4 |
| October | 27°C | 16°C | 217 mm | 12 | – | – | 6.9 |
| November | 29°C | 18°C | 160 mm | 9 | – | – | 7.4 |
| December | 31°C | 20°C | 160 mm | 11 | – | – | 6.6 |
Frequently asked questions
How hot is Santo Tomé in September?
Daytime highs average 24°C and nights about 14°C.
When is the best time to visit Santo Tomé?
The best months are August, May, June, July.