The climate in Sines during September can be summarized as warm and dry.
September is in the fall / autumn in Sines and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 17°C (62°F) is normal.
|Daytime temperature||26.6°C 79.9°F|
|Nightly temperature||16.8°C 62.3°F|
|Average temperature||21.7°C 71.1°F|
|Daily sunshine||9.3 hrs|
|Avg rainfall||20 mm 0.8 ins|
|Rainy days||4 days|
|Sea temperature||21°C 69.9°F|
|Windspeed||13kph 8 mph|
On average September is the 4th driest month of the year in Sines with around 20mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 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 Sines in September 2023.
|Hottest month:||August||27.8°C 82°F|
|Driest month:||July||3mm 0.1ins|
|Coldest month:||January||14.6°C 58.3°F|
|Wettest month:||January||97mm 3.8ins|