September weather forecastCesar, Portugal
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Cesar, Portugal, with an average temperature varying between 14.1°C (57.4°F) and 25.5°C (77.9°F).Temperature
The arrival of September coincides with an average high-temperature of a still warm 25.5°C (77.9°F), indicating a minimal shift from August's 27.1°C (80.8°F). Cesar's average low-temperature during September nights is observed to be a mild 14.1°C (57.4°F).Humidity
August and September, with an average relative humidity of 66%, are the least humid months in Cesar, Portugal.Rainfall
In Cesar, in September, during 6.4 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 135.4 rainfall days, and 778mm (30.63") of precipitation is accumulated.Daylight
In Cesar, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:01 and sunset at 20:06. On the last day of September, in Cesar, sunrise is at 07:29 and sunset at 19:17 WEST.
Sunshine
In Cesar, the average sunshine in September is 9.2h.UV index
In Cesar, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cesar, Portugal
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (12.6°C).
- Average low temperature in September: 14.1°C
The months with the highest average low temperature are July and August (14.8°C).
The coldest month (with the lowest average low temperature) is January (6°C).
Average pressure in September
Cesar, Portugal
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Cesar, Portugal
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is February (9.7km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in September
Cesar, Portugal
- Average humidity in September: 66%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (66%).
Average rainfall in September
Cesar, Portugal
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in September
Cesar, Portugal
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is November (15.7 days).
The month with the least rainy days is August (4.3 days).
Average daylight in September /
Average sunshine in September
Cesar, Portugal
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Cesar, Portugal
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is November (11.6 days).
Average UV index in September
Cesar, Portugal
- Average UV index in September: 5
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in September
Cesar, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Cesar, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
