September weather forecastValpaços, Portugal
September weather forecast for Valpaços, Portugal: The first month of the autumn, September, is still a warm month in Valpaços, Portugal, with temperature in the range of an average low of 11.3°C (52.3°F) and an average high of 25.7°C (78.3°F). Valpaços, Portugal, records a mild change in average high-temperature during September, easing from a warm 29.1°C (84.4°F) in August to a still moderately hot 25.7°C (78.3°F).
September
Weather in September
The first month of the autumn, September, is still a warm month in Valpaços, Portugal, with temperature in the range of an average low of 11.3°C (52.3°F) and an average high of 25.7°C (78.3°F).Temperature
Valpaços, Portugal, records a mild change in average high-temperature during September, easing from a warm 29.1°C (84.4°F) in August to a still moderately hot 25.7°C (78.3°F). Valpaços's nighttime temperatures in September reflect a stark contrast to the day's highs, falling to an average low of 11.3°C (52.3°F).Humidity
In Valpaços, the average relative humidity in September is 60%.Rainfall
In September, the rain falls for 6.3 days. Throughout September, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Valpaços, there are 127.3 rainfall days, and 455mm (17.91") of precipitation is accumulated.Snowfall
In Valpaços, snow does not fall in March through December.Daylight
In Valpaços, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 06:55 and sunset at 20:02. On the last day of the month, sunrise is at 07:25 and sunset at 19:12 WEST.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Valpaços, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valpaços, Portugal
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in September: 11.3°C
The months with the highest average low temperature are July and August (13.1°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure in September
Valpaços, Portugal
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Valpaços, Portugal
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest months (with the lowest average wind speed) are September and October (6.5km/h).
Average humidity in September
Valpaços, 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
Valpaços, Portugal
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (72mm).
The driest months (with the least rainfall) are July and August (11mm).
Average rainfall days in September
Valpaços, Portugal
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in September
Valpaços, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Valpaços, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 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
Valpaços, 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 12min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Valpaços, Portugal
- Average sunshine days in September: 21.8 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in September
Valpaços, Portugal
- Average UV index in September: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Valpaços, Portugal
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Valpaços, Portugal
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (6km).
