September weather forecastZumaia, Spain
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Zumaia, Spain, with an average temperature fluctuating between 21.1°C (70°F) and 15.5°C (59.9°F).Temperature
Zumaia's September average high-temperature settles at a pleasant 21.1°C (70°F), showing a near match with the preceding month. September's nights observe an average temperature of 15.5°C (59.9°F).Humidity
The average relative humidity in September in Zumaia, Spain, is 76%.Rainfall
The month with the least rainfall in Zumaia is September, when the rain falls for 15.5 days and typically collects 44mm (1.73") of precipitation.Snowfall
In Zumaia, snow does not fall in April through November.Sea temperature
In September, the average sea temperature in Zumaia is 20.8°C (69.4°F).Note: Most people do not find swimming enjoyable in water of 20.8°C (69.4°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September in Zumaia is 12h and 30min.On the first day of the month, sunrise is at 07:33 and sunset at 20:44. On the last day of September, in Zumaia, sunrise is at 08:05 and sunset at 19:51 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
May through September, with an average maximum UV index of 5, are months with the highest UV index in Zumaia. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Zumaia, Spain
- Average high temperature in September: 21.1°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 (9.9°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).
Average pressure in September
Zumaia, Spain
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Zumaia, Spain
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is November (16.8km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Zumaia, Spain
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Zumaia, Spain
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (121mm).
The driest month (with the least rainfall) is September (44mm).
Average rainfall days in September
Zumaia, Spain
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is October (14.8 days).
Average snowfall in September
Zumaia, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Zumaia, Spain
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 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
Zumaia, Spain
- Average sea temperature in September: 20.8°C
The best month for swimming (with the highest average sea temperature) is August (21.3°C).
The coldest month (with the lowest average sea temperature) is February (12.4°C).
Average daylight in September /
Average sunshine in September
Zumaia, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 48min).
Average sunshine days in September
Zumaia, Spain
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is October (13.6 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in September
Zumaia, Spain
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Zumaia, Spain
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Zumaia, Spain
- Average visibility in September: 10km
The months with the highest visibility are February, March, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, April, May and November (9km).
