Baja Mar Weather in September
What's the weather like in Baja Mar (Cortés) in September 2025?
The climate in Baja Mar during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Baja Mar and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 23°C (73°F) is normal.
| Daytime temperature | 31.7°C 89.1°F |
|---|---|
| Nightly temperature | 23°C 73.3°F |
| Average temperature | 27.4°C 81.2°F |
| Daily sunshine | 7.1 hrs |
| Avg rainfall | 230 mm 9.1 ins |
| Rainy days | 18 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 81% |
| Windspeed | 19.1kph 12 mph |
On average September is the 4th wettest month of the year in Baja Mar with around 230mm 9.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 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 Baja Mar
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 Baja Mar in September 2025.
Other monthly averages
Best places to visit in September
Baja Mar weather stats
| Hottest month: | June | 32°C 89.6°F |
|---|---|---|
| Driest month: | April | 74mm 2.9ins |
| Sunniest month: | May | 8.7hrs |
| Coldest month: | January | 27°C 80.6°F |
| Wettest month: | October | 380mm 15ins |
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