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
The advent of September observes an average high-temperature of a still agreeable 21.7°C (71.1°F), nearly identical to August's 22.6°C (72.7°F). During September, Ribadesella experiences a consistent low-temperature average of 14.4°C (57.9°F).Humidity
In Ribadesella, Spain, the average relative humidity in September is 78%.Rainfall
In Ribadesella, in September, during 9.9 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, there are 171.1 rainfall days, and 653mm (25.71") of precipitation is accumulated.Snowfall
March through December are months without snowfall.Sea temperature
In Ribadesella, in September, the average water temperature is 20.1°C (68.2°F).Note: Swimming in water of 20.1°C (68.2°F) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day in Ribadesella is 12h and 30min.On the first day of September in Ribadesella, sunrise is at 07:44 and sunset at 20:55. On the last day of the month, sunrise is at 08:17 and sunset at 20:02 CEST.
Sunshine
The average sunshine in September is 8.3h.UV index
May through September, 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 medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 5 in September translates into this advice:
Guard yourself - Avoiding sunburn is suggested. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What are September temperatures in Ribadesella?
What is the average humidity in September in Ribadesella?
How many days does it rain in September in Ribadesella?
When it does not snow in Ribadesella?
How cold is the water in September in Ribadesella?
How many hours of daylight does Ribadesella have in September?
When is the sunrise / sunset in September in Ribadesella?
How many hours of sunshine does Ribadesella have in September?
When is the highest UV index in Ribadesella?
What is the UV index intensity in September in Ribadesella?
Average temperature in September
Ribadesella, Spain
- Average high temperature in September: 21.7°C
The warmest month (with the highest average high temperature) is August (22.6°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (6.5°C).
Average pressure in September
Ribadesella, Spain
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Ribadesella, Spain
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in September
Ribadesella, Spain
- Average humidity in September: 78%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Ribadesella, Spain
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (99mm).
The driest month (with the least rainfall) is July (19mm).
Average rainfall days in September
Ribadesella, Spain
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is November (18.1 days).
The month with the least rainy days is September (9.9 days).
Average snowfall in September
Ribadesella, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is January (3mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Ribadesella, Spain
- 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 March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Ribadesella, Spain
- Average sea temperature in September: 20.1°C
The best month for swimming (with the highest average sea temperature) is August (20.7°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
Ribadesella, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Ribadesella, Spain
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in September
Ribadesella, 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, April and November (UV index 3).
Average cloud cover in September
Ribadesella, Spain
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in September
Ribadesella, Spain
- Average visibility in September: 9km
The months with the highest visibility are February, March, October and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September and November (9km).
Ribadesella, Spain
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