September weather forecastRegadas, Portugal
September
Weather in September
The first month of the autumn, September, is still a warm month in Regadas, Portugal, with an average temperature ranging between min 12.5°C (54.5°F) and max 25.4°C (77.7°F).Temperature
Regadas experiences an average high-temperature of a still moderately hot 25.4°C (77.7°F) in September, subtly different from August's 27.8°C (82°F). Regadas registers a significant drop in temperature in September, with average nighttime lows of 12.5°C (54.5°F).Humidity
In September, the average relative humidity is 64%.Rainfall
In Regadas, in September, during 5.7 rainfall days, 23mm (0.91") of precipitation is typically accumulated. Throughout the year, there are 132.3 rainfall days, and 791mm (31.14") of precipitation is accumulated.Snowfall
In Regadas, snow does not fall in April through October and December.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 06:59 and sunset at 20:05. On the last day of the month, sunrise is at 07:28 and sunset at 19:15 WEST.
Sunshine
In Regadas, the average sunshine in September is 9h.UV index
In Regadas, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Take precautions - Protection against sun damage is advised. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Regadas, Portugal
- Average high temperature in September: 25.4°C
The warmest months (with the highest average high temperature) are July and August (27.8°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).
Average pressure in September
Regadas, Portugal
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Regadas, Portugal
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).
Average humidity in September
Regadas, Portugal
- Average humidity in September: 64%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Regadas, Portugal
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is December (135mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in September
Regadas, Portugal
- Average rainfall days in September: 5.7 days
The month with the highest number of rainy days is January (16.2 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in September
Regadas, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Regadas, Portugal
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Regadas, 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 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Regadas, Portugal
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is November (12.2 days).
Average UV index in September
Regadas, Portugal
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Regadas, Portugal
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in September
Regadas, Portugal
- Average visibility in September: 9km
The months with the highest visibility are July, August and September (9km).
The months with the lowest visibility are January, February, November and December (7km).
