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 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 average high-temperature during September registers at a still warm 26.7°C (80.1°F), maintaining a close resemblance to the previous month. Throughout September, the nighttime temperature averages to a refreshing 16.9°C (62.4°F).Humidity
In Comporta, the average relative humidity in September is 66%.Rainfall
In Comporta, in September, during 5 rainfall days, 17mm (0.67") of precipitation is typically accumulated. In Comporta, during the entire year, the rain falls for 101 days and collects up to 340mm (13.39") of precipitation.Daylight
In Comporta, Portugal, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:05 and sunset at 20:04. On the last day of September, sunrise is at 07:30 and sunset at 19:19 WEST.
Sunshine
In September, the average sunshine is 9.3h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the usual temperature for Comporta in September?
What is the average humidity in September in Comporta?
How many days does it rain in September in Comporta?
What is the average length of the day in September in Comporta?
What time are sunrise and sunset in September in Comporta?
How long on average sun shines in September in Comporta?
What are the months with the highest UV index in Comporta?
What is the UV index reading in September in Comporta?
Average temperature in September
Comporta, Portugal
- Average high temperature in September: 26.7°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in September: 16.9°C
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.1°C).
Average pressure in September
Comporta, Portugal
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Comporta, Portugal
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is September (11.7km/h).
Average humidity in September
Comporta, Portugal
- Average humidity in September: 66%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Comporta, Portugal
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is November (55mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days in September
Comporta, Portugal
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is November (13.3 days).
The month with the least rainy days is August (1.7 days).
Average daylight in September /
Average sunshine in September
Comporta, Portugal
- Average daylight in September: 12h and 2min
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 2min
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
Comporta, Portugal
- Average sunshine days in September: 23.8 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is November (14.9 days).
Average UV index in September
Comporta, Portugal
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in September
Comporta, Portugal
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Comporta, 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).
Comporta, Portugal
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