Réthymno Weather in September
What's the weather like in Réthymno (Greece) in September 2025?
The climate in Réthymno during September can be summarized as warm and dry.
September is in the fall / autumn in Réthymno and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (78°F), whilst at night 18°C (64°F) is normal.
| Daytime temperature | 25.7°C 78.2°F |
|---|---|
| Nightly temperature | 17.6°C 63.7°F |
| Average temperature | 21.6°C 70.9°F |
| Daily sunshine | 10.3 hrs |
| Avg rainfall | 22 mm 0.9 ins |
| Rainy days | 1 days |
| Sea temperature | 24.7°C 76.4°F |
| Humidity | 61% |
| Windspeed | 12.2kph 8 mph |
On average September is the 5th driest month of the year in Réthymno with around 22mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 1 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 hours of sunshine per day.
September temperatures in Réthymno
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 Réthymno in September 2025.
Other monthly averages
Best places to visit in September
Réthymno weather stats
| Hottest month: | July | 28.2°C 82.8°F |
|---|---|---|
| Driest month: | August | 2mm 0.1ins |
| Sunniest month: | August | 12.3hrs |
| Coldest month: | January | 13°C 55.4°F |
| Wettest month: | January | 164mm 6.5ins |
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