The climate in Santo Tomás during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Santo Tomás and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 19°C (65°F) is normal.
Daytime temperature | 29.1°C 84.3°F |
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Nightly temperature | 18.6°C 65.4°F |
Average temperature | 23.8°C 74.8°F |
Daily sunshine | 6 hrs |
Avg rainfall | 374 mm 14.7 ins |
Rainy days | 29 days |
Sea temperature | 29.5°C 85°F |
Humidity | 86% |
Windspeed | 7.6kph 5 mph |
On average September is the wettest month of the year in Santo Tomás with around 374mm 14.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 29 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Santo Tomás in September 2024.
Best places to visit in September
Hottest month: | April | 32.4°C 90.3°F |
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Driest month: | February | 5mm 0.2ins |
Sunniest month: | February | 9.4hrs |
Coldest month: | December | 30.1°C 86.2°F |
Wettest month: | September | 374mm 14.7ins |