San Francisco de Laishí Weather in September
What's the weather like in San Francisco de Laishí (Formosa) in September 2025?
The climate in San Francisco de Laishí during September can be summarized as warm and a little damp.
September is in the spring in San Francisco de Laishí and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 14°C (58°F) is normal.
| Daytime temperature | 26°C 78.8°F |
|---|---|
| Nightly temperature | 14.4°C 57.9°F |
| Average temperature | 20.2°C 68.4°F |
| Daily sunshine | 7.1 hrs |
| Avg rainfall | 81 mm 3.2 ins |
| Rainy days | 7 days |
| Sea temperature | 17.5°C 63.4°F |
| Humidity | 70% |
| Windspeed | 11.9kph 7 mph |
On average September is the 4th driest month of the year in San Francisco de Laishí with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
September temperatures in San Francisco de Laishí
September rainfall
September hourly sunshine
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 San Francisco de Laishí in September 2025.
Other monthly averages
Best places to visit in September
San Francisco de Laishí weather stats
| Hottest month: | January | 33.4°C 92.1°F |
|---|---|---|
| Driest month: | July | 38mm 1.5ins |
| Sunniest month: | December | 10hrs |
| Coldest month: | July | 22.1°C 71.8°F |
| Wettest month: | February | 160mm 6.3ins |
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