September weather forecastAstillero, Spain
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Astillero, Spain, with temperature in the range of an average high of 20.9°C (69.6°F) and an average low of 17°C (62.6°F).Temperature
As August turns into September, the average high-temperatures rest at a still pleasant 20.9°C (69.6°F), showing a minor variation from the prior month. Astillero observes a minimal variance in temperature, with a consistent average low of 17°C (62.6°F) during the nights of September.Humidity
In September, the average relative humidity in Astillero is 75%.Rainfall
In Astillero, during September, the rain falls for 8.3 days and regularly aggregates up to 15mm (0.59") of precipitation. Throughout the year, in Astillero, there are 133.9 rainfall days, and 336mm (13.23") of precipitation is accumulated.Snowfall
March through November are months without snowfall in Astillero.Sea temperature
In September, the average sea temperature is 20.4°C (68.7°F).Note: Swimming in water at 20.4°C (68.7°F) is not a pleasing experience for the majority. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), controlling breathing becomes increasingly hard.
Daylight
The average length of the day in September is 12h and 30min.On the first day of September in Astillero, sunrise is at 07:39 and sunset at 20:50. On the last day of the month, sunrise is at 08:12 and sunset at 19:58 CEST.
Sunshine
In September, the average sunshine in Astillero is 8.4h.UV index
May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Astillero, Spain
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (21.9°C).
The months with the lowest average high temperature are January and February (11.8°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is August (18.1°C).
The coldest month (with the lowest average low temperature) is February (8.4°C).
Average pressure in September
Astillero, Spain
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in September
Astillero, Spain
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is November (19.5km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in September
Astillero, Spain
- Average humidity in September: 75%
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are October and December (72%).
Average rainfall in September
Astillero, Spain
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is November (53mm).
The driest month (with the least rainfall) is July (14mm).
Average rainfall days in September
Astillero, Spain
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is January (13.8 days).
The month with the least rainy days is September (8.3 days).
Average snowfall in September
Astillero, Spain
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Astillero, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Astillero, Spain
- Average sea temperature in September: 20.4°C
The best month for swimming (with the highest average sea temperature) is August (21.2°C).
The coldest month (with the lowest average sea temperature) is February (12.7°C).
Average daylight in September /
Average sunshine in September
Astillero, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 24min
The months with the most sunshine are June and July (Average sunshine: 9h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).
Average sunshine days in September
Astillero, Spain
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is August (20.1 days).
The month with the least sunshine days is February (14.2 days).
Average UV index in September
Astillero, Spain
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, April and November (UV index 3).
Average cloud cover in September
Astillero, Spain
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Astillero, Spain
- 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).
