Puerto Barrios Weather in September
What's the weather like in Puerto Barrios (Izabal) in September 2025?
The climate in Puerto Barrios during September can be summarized as very hot, humid and very wet.
September is in the fall / autumn in Puerto Barrios and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 25°C (76°F) is normal.
| Daytime temperature | 32.6°C 90.7°F |
|---|---|
| Nightly temperature | 24.6°C 76.3°F |
| Average temperature | 28.6°C 83.5°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 289 mm 11.4 ins |
| Rainy days | 19 days |
| Sea temperature | 29.6°C 85.3°F |
| Humidity | 81% |
| Windspeed | 16.6kph 10 mph |
On average September is the 4th wettest month of the year in Puerto Barrios with around 289mm 11.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
September temperatures in Puerto Barrios
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 Puerto Barrios in September 2025.
Other monthly averages
Best places to visit in September
Puerto Barrios weather stats
| Hottest month: | May | 33.4°C 92.1°F |
|---|---|---|
| Driest month: | March | 97mm 3.8ins |
| Sunniest month: | May | 8.5hrs |
| Coldest month: | January | 28°C 82.4°F |
| Wettest month: | July | 419mm 16.5ins |
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