September weather forecastAlvide, Portugal
September weather for Alvide, Portugal: September, the first month of the autumn in Alvide, is still a pleasant month, with an average temperature fluctuating between 22.6°C (72.7°F) and 18.6°C (65.5°F). On the first day of September in Alvide, sunrise is at 07:07 and sunset at 20:07.
September
Weather in September
September, the first month of the autumn in Alvide, is still a pleasant month, with an average temperature fluctuating between 22.6°C (72.7°F) and 18.6°C (65.5°F).Temperature
Alvide's weather in September, with an average high-temperature of an agreeable 22.6°C (72.7°F), subtly shifts from August's 23.1°C (73.6°F). Alvide observes a consistent average low-temperature of 18.6°C (65.5°F) throughout September nights.Humidity
In Alvide, the average relative humidity in September is 75%.Rainfall
In September, in Alvide, Portugal, the rain falls for 5.1 days. Throughout September, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Alvide, there are 107.2 rainfall days, and 367mm (14.45") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Alvide, sunrise is at 07:07 and sunset at 20:07. On the last day of the month, sunrise is at 07:33 and sunset at 19:21 WEST.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Alvide, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 5 in September translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alvide, Portugal
- Average high temperature in September: 22.6°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in September: 18.6°C
The month with the highest average low temperature is August (18.8°C).
The coldest month (with the lowest average low temperature) is February (11.7°C).
Average pressure in September
Alvide, Portugal
- Average pressure in September: 1017.1mbar
The months with the highest atmospheric pressure are January and December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Alvide, Portugal
- Average wind speed in September: 17.1km/h
The windiest month (with the highest average wind speed) is February (21.1km/h).
The calmest month (with the lowest average wind speed) is October (16.9km/h).
Average humidity in September
Alvide, Portugal
- Average humidity in September: 75%
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are February, May, October and November (74%).
Average rainfall in September
Alvide, Portugal
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is November (68mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Alvide, Portugal
- Average rainfall days in September: 5.1 days
The month with the highest number of rainy days is November (14.5 days).
The month with the least rainy days is August (1.7 days).
Average daylight in September /
Average sunshine in September
Alvide, 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 24min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Alvide, Portugal
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is November (13.4 days).
Average UV index in September
Alvide, Portugal
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Alvide, Portugal
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Alvide, 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).
