September weather forecastBoidobra, Portugal
September
Weather in September
September, the first month of the autumn in Boidobra, is still a warm month, with an average temperature fluctuating between 13.5°C (56.3°F) and 26.4°C (79.5°F).Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a tropical 30.6°C (87.1°F) to a warm 26.4°C (79.5°F). Boidobra observes a dramatic plunge from daytime highs in September, settling at an average low-temperature of 13.5°C (56.3°F).Humidity
In September, the average relative humidity in Boidobra, Portugal, is 53%.Rainfall
In Boidobra, during September, the rain falls for 5.9 days and regularly aggregates up to 20mm (0.79") of precipitation. In Boidobra, Portugal, during the entire year, the rain falls for 108 days and collects up to 443mm (17.44") of precipitation.Snowfall
In Boidobra, snow does not fall in January, April through October.Daylight
In Boidobra, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 06:58 and sunset at 20:01. On the last day of September, in Boidobra, sunrise is at 07:25 and sunset at 19:13 WEST.
Sunshine
In Boidobra, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index in Boidobra is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the UV index of 5 transforms into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boidobra, Portugal
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (10.1°C).
- Average low temperature in September: 13.5°C
The months with the highest average low temperature are July and August (15°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in September
Boidobra, Portugal
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Boidobra, Portugal
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is February (11.4km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).
Average humidity in September
Boidobra, Portugal
- Average humidity in September: 53%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Boidobra, Portugal
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (70mm).
The driest months (with the least rainfall) are July and August (5mm).
Average rainfall days in September
Boidobra, Portugal
- Average rainfall days in September: 5.9 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in September
Boidobra, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are January, April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Boidobra, Portugal
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Boidobra, Portugal
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Boidobra, Portugal
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is August (27.4 days).
The month with the least sunshine days is April (14 days).
Average UV index in September
Boidobra, Portugal
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Boidobra, Portugal
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Boidobra, Portugal
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, April, November and December (8km).
