September weather forecastCarnaxide, Portugal
September
Weather in September
September, the first month of the autumn in Carnaxide, is also a moderately hot month, with temperature in the range of an average high of 24.7°C (76.5°F) and an average low of 17.9°C (64.2°F).Temperature
The introduction of September sees an average high-temperature of a still warm 24.7°C (76.5°F), hardly deviating from August. Throughout September, the average low-temperature in Carnaxide, Portugal, dips to a comfortable 17.9°C (64.2°F).Humidity
In Carnaxide, the average relative humidity in September is 71%.Rainfall
In Carnaxide, Portugal, in September, it is raining for 5.7 days, with typically 19mm (0.75") of accumulated precipitation. Throughout the year, there are 112.7 rainfall days, and 389mm (15.31") of precipitation is accumulated.Daylight
In September, the average length of the day in Carnaxide is 12h and 26min.On the first day of September in Carnaxide, sunrise is at 07:06 and sunset at 20:07. On the last day of the month, sunrise is at 07:32 and sunset at 19:21 WEST.
Sunshine
In Carnaxide, the average sunshine in September is 9.4h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carnaxide, Portugal
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in September: 17.9°C
The months with the highest average low temperature are July and August (18.1°C).
The coldest month (with the lowest average low temperature) is February (10.3°C).
Average pressure in September
Carnaxide, Portugal
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Carnaxide, Portugal
- Average wind speed in September: 14.4km/h
The windiest month (with the highest average wind speed) is February (17.8km/h).
The calmest month (with the lowest average wind speed) is October (14.1km/h).
Average humidity in September
Carnaxide, Portugal
- Average humidity in September: 71%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are May and August (70%).
Average rainfall in September
Carnaxide, Portugal
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Carnaxide, Portugal
- Average rainfall days in September: 5.7 days
The month with the highest number of rainy days is November (14.4 days).
The month with the least rainy days is August (2.6 days).
Average daylight in September /
Average sunshine in September
Carnaxide, Portugal
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Carnaxide, Portugal
- Average sunshine days in September: 22.6 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is November (13.3 days).
Average UV index in September
Carnaxide, Portugal
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Carnaxide, Portugal
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Carnaxide, Portugal
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





