Weather in September
Temperature
Deià records a mild change in average high-temperature during September, easing from a warm 28°C (82.4°F) in August to a still moderately hot 25°C (77°F). During the month of September, the temperature in Deià generally drops to a low average of 16°C (60.8°F).Rainfall
In September, in Deià, the rain falls for 8 days. Throughout September, 62mm (2.44") of precipitation is accumulated. In Deià, during the entire year, the rain falls for 122 days and collects up to 624mm (24.57") of precipitation.Sea temperature
In September, the average sea temperature is 24°C (75.2°F).Note: People sensitive to cold might find swimming in 24°C (75.2°F) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.
Daylight
In Deià, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 07:17 and sunset at 20:20. On the last day of September, sunrise is at 07:45 and sunset at 19:33 CEST.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Notice! Sand and water reflections contribute to a stronger UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Deià?
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When are sunrise and sunset in September in Deià?
How long on average sun shines in September in Deià?
How high is the UV index in September in Deià?
Average temperature in September
Deià, Spain
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (12°C).
- Average low temperature in September: 16°C
The months with the highest average low temperature are July and August (18°C).
The coldest months (with the lowest average low temperature) are January and February (4°C).
Average rainfall in September
Deià, Spain
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is October (95mm).
The driest month (with the least rainfall) is July (14mm).
Average rainfall days in September
Deià, Spain
- Average rainfall days in September: 8 days
The months with the highest number of rainy days are January and December (14 days).
The month with the least rainy days is July (4 days).
Average sea temperature in September
Deià, Spain
- Average sea temperature in September: 24°C
The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest months (with the lowest average sea temperature) are January, February and March (14°C).
Average daylight in September /
Average sunshine in September
Deià, Spain
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h
The months with the most sunshine are June, July and August (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 5h).
Average UV index in September
Deià, Spain
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 9).
The months with the lowest UV index are January, November and December (UV index 2).
Deià, Spain
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