September weather forecastCotovia, Portugal
September weather for Cotovia, Portugal: September, the first month of the autumn in Cotovia, is still a warm month, with an average temperature fluctuating between 16.9°C (62.4°F) and 26.7°C (80.1°F). Upon the onset of September, Cotovia witnesses an average high-temperature of a still warm 26.7°C (80.1°F), showing a close resemblance to the prior month.
September
Weather in September
September, the first month of the autumn in Cotovia, is still a warm month, with an average temperature fluctuating between 16.9°C (62.4°F) and 26.7°C (80.1°F).Temperature
Upon the onset of September, Cotovia witnesses an average high-temperature of a still warm 26.7°C (80.1°F), showing a close resemblance to the prior month. September witnesses an average nighttime temperature of 16.9°C (62.4°F).Humidity
In Cotovia, the average relative humidity in September is 66%.Rainfall
In Cotovia, in September, during 5 rainfall days, 17mm (0.67") of precipitation is typically accumulated. Throughout the year, there are 101 rainfall days, and 340mm (13.39") of precipitation is accumulated.Daylight
In September, the average length of the day in Cotovia is 12h and 26min.On the first day of the month, sunrise is at 07:06 and sunset at 20:06. On the last day of September, in Cotovia, sunrise is at 07:31 and sunset at 19:20 WEST.
Sunshine
In September, the average sunshine in Cotovia is 9.3h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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
Cotovia, 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).
