September weather forecastComporta, Portugal
September
Weather in September
The first month of the autumn, September, is still a warm month in Comporta, Portugal, with an average temperature varying between 16.9°C (62.4°F) and 26.7°C (80.1°F).Temperature
The advent of September signifies a minor shift to an average high-temperature of a still warm 26.7°C (80.1°F), aligning closely with August. Comporta records an average low of 16.9°C (62.4°F) throughout the nights in September.Humidity
In September, the average relative humidity is 66%.Rainfall
In Comporta, in September, it is raining for 5 days, with typically 17mm (0.67") of accumulated precipitation. In Comporta, during the entire year, the rain falls for 101 days and collects up to 340mm (13.39") of precipitation.Daylight
In Comporta, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 07:05 and sunset at 20:04. On the last day of the month, sunrise is at 07:30 and sunset at 19:19 WEST.
Sunshine
In Comporta, the average sunshine in September 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 reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in September leads to these recommendations:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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
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 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 18min
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).
