September weather forecastInsalde, Portugal
September
Weather in September
The first month of the autumn, September, is still a warm month in Insalde, Portugal, with an average temperature fluctuating between 24.8°C (76.6°F) and 14°C (57.2°F).Temperature
Transitioning into September, Insalde experiences an average high-temperature of a still moderately hot 24.8°C (76.6°F), marking a minor shift from the preceding month. The average nighttime temperature lowers to a refreshing 14°C (57.2°F) throughout September.Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 69%.Rainfall
In Insalde, during September, the rain falls for 8.1 days and regularly aggregates up to 35mm (1.38") of precipitation. In Insalde, during the entire year, the rain falls for 145.4 days and collects up to 998mm (39.29") of precipitation.Daylight
In Insalde, Portugal, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 07:00 and sunset at 20:07. On the last day of the month, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Insalde, Portugal
- Average high temperature in September: 24.8°C
The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in September: 14°C
The months with the highest average low temperature are July and August (14.4°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure in September
Insalde, Portugal
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Insalde, Portugal
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is February (10.3km/h).
The calmest month (with the lowest average wind speed) is September (7.8km/h).
Average humidity in September
Insalde, Portugal
- Average humidity in September: 69%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are August and September (69%).
Average rainfall in September
Insalde, Portugal
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (154mm).
The driest month (with the least rainfall) is July (11mm).
Average rainfall days in September
Insalde, Portugal
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is November (17.2 days).
The month with the least rainy days is August (5.4 days).
Average daylight in September /
Average sunshine in September
Insalde, Portugal
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Insalde, Portugal
- Average sunshine days in September: 20.6 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (11.7 days).
Average UV index in September
Insalde, 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, April, November and December (UV index 3).
Average cloud cover in September
Insalde, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 21).
Average visibility in September
Insalde, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
