Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September correlates with a minor temperature reduction, down from August's moderately hot 28.6°C (83.5°F) to a still warm 25.5°C (77.9°F). Throughout September, Britiande registers a distinct decrease from daytime highs, reaching an average low of 12.1°C (53.8°F).Humidity
In Britiande, the average relative humidity in September is 60%.Rainfall
In Britiande, in September, during 6.3 rainfall days, 13mm (0.51") of precipitation is typically accumulated. Throughout the year, there are 107.8 rainfall days, and 282mm (11.1") of precipitation is accumulated.Snowfall
In Britiande, snow does not fall in April through October.Daylight
In Britiande, the average length of the day in September is 12h and 28min.On the first day of September in Britiande, Portugal, sunrise is at 06:58 and sunset at 20:03. On the last day of the month, sunrise is at 07:27 and sunset at 19:14 WEST.
Sunshine
In Britiande, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What are the temperatures in Britiande in September?
What is the average humidity in September in Britiande?
How many days does it rain in September in Britiande?
When it does not snow in Britiande?
What is the average length of the day in September in Britiande?
When is the sunrise / sunset in September in Britiande?
How long on average sun shines in September in Britiande?
How high is the UV index in September in Britiande?
Average temperature in September
Britiande, Portugal
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (9.4°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in September
Britiande, Portugal
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Britiande, Portugal
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).
Average humidity in September
Britiande, Portugal
- Average humidity in September: 60%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Britiande, Portugal
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in September
Britiande, Portugal
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in September
Britiande, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Britiande, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Britiande, Portugal
- Average daylight in September: 12h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Britiande, Portugal
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is April (14.1 days).
Average UV index in September
Britiande, Portugal
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Britiande, Portugal
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Britiande, Portugal
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (6km).
Britiande, Portugal
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