Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Stepping into September, Comillas records an average high-temperature of a still pleasant 20.9°C (69.6°F), almost consistent with August. In September, the nighttime temperature in Comillas, Spain, lowers to an average of 14.8°C (58.6°F).Humidity
The average relative humidity in September in Comillas, Spain, is 76%.Rainfall
In September, the rain falls for 12.7 days. Throughout September, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Comillas, there are 177 rainfall days, and 577mm (22.72") of precipitation is accumulated.Snowfall
April through December are months without snowfall in Comillas.Sea temperature
In Comillas, the average seawater temperature in September is 20.3°C (68.5°F).Note: For most, swimming in 20.3°C (68.5°F) is not a pleasant experience. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes more difficult.
Daylight
The average length of the day in September in Comillas is 12h and 30min.On the first day of September in Comillas, sunrise is at 07:41 and sunset at 20:52. On the last day of the month, sunrise is at 08:14 and sunset at 19:59 CEST.
Sunshine
In Comillas, the average sunshine in September is 8.7h.UV index
May through September, with an average maximum UV index of 5, are months with the highest UV index in Comillas. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Exercise prevention - Warding off sunburn is urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the average September temperature in Comillas?
What is the average humidity in September in Comillas?
How much does it rain in Comillas in September?
When it does not snow in Comillas?
How cold is the water in September in Comillas?
How many hours of daylight does Comillas have in September?
When is the sunrise / sunset in September in Comillas?
How long on average sun shines in September in Comillas?
What are the months with the highest UV index in Comillas?
What is the UV index reading in September in Comillas?
Average temperature in September
Comillas, Spain
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (22.2°C).
The month with the lowest average high temperature is January (10.6°C).
- Average low temperature in September: 14.8°C
The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is February (6.6°C).
Average pressure in September
Comillas, Spain
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Comillas, Spain
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is February (16.6km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Comillas, Spain
- Average humidity in September: 76%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Comillas, Spain
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is August (22mm).
Average rainfall days in September
Comillas, Spain
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is January (17.8 days).
The month with the least rainy days is August (11.8 days).
Average snowfall in September
Comillas, 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, November and December (0mm).
Average snowfall days in September
Comillas, 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, November and December (0 days).
Average sea temperature in September
Comillas, Spain
- Average sea temperature in September: 20.3°C
The best month for swimming (with the highest average sea temperature) is August (21°C).
The coldest months (with the lowest average sea temperature) are February and March (12.8°C).
Average daylight in September /
Average sunshine in September
Comillas, Spain
- Average daylight in September: 12h and 3min
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 4min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in September
Comillas, Spain
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in September
Comillas, 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
Comillas, Spain
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Comillas, 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).
Comillas, Spain
Weather forecast for your location
2. Allow the app to use your location
