The climate in Graham during September can be summarized as warm, humid and a little damp.
September is in the fall / autumn in Graham and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 15°C (58°F) is normal.
Daytime temperature | 27.4°C 81.2°F |
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Nightly temperature | 14.5°C 58°F |
Average temperature | 20.9°C 69.6°F |
Daily sunshine | 8 hrs |
Avg rainfall | 84 mm 3.3 ins |
Rainy days | 7 days |
Sea temperature | 24.7°C 76.5°F |
Humidity | 76% |
Windspeed | 11.2kph 7 mph |
On average September is the 3rd driest month of the year in Graham with around 84mm 3.3 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 8 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 Graham in September 2025.
Best places to visit in September
Hottest month: | July | 31°C 87.8°F |
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Driest month: | November | 82mm 3.2ins |
Sunniest month: | April | 8.9hrs |
Coldest month: | January | 8.4°C 47.1°F |
Wettest month: | July | 110mm 4.3ins |