Weather in September
Temperature
As Sao Rafael, Portugal, transitions into September, the average high-temperature stands at a still moderately hot 26°C (78.8°F), offering little variation from the preceding month. September sees the temperature falling to a mean low of 17°C (62.6°F).Rainfall
In Sao Rafael, Portugal, in September, during 2 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Sao Rafael, Portugal, during the entire year, the rain falls for 77 days and collects up to 558mm (21.97") of precipitation.Sea temperature
August and September, with an average sea temperature of 21°C (69.8°F), are months with the warmest seawater.Note: For most individuals, swimming in 21°C (69.8°F) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 21°C (69.8°F).
Daylight
In Sao Rafael, the average length of the day in September is 12h and 25min.On the first day of September in Sao Rafael, sunrise is at 07:04 and sunset at 20:01. On the last day of the month, sunrise is at 07:28 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Sao Rafael is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 7 in September transforms into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are September temperatures in Sao Rafael?
How many days does it rain in September in Sao Rafael?
When is the sea warmest in Sao Rafael?
How cold is the water in September in Sao Rafael?
What is the average length of the day in September in Sao Rafael?
When are sunrise and sunset in September in Sao Rafael?
How long on average sun shines in September in Sao Rafael?
What is the UV index reading in September in Sao Rafael?
Average temperature in September
Sao Rafael, Portugal
- Average high temperature in September: 26°C
The warmest month (with the highest average high temperature) is August (28°C).
The months with the lowest average high temperature are January, February and December (16°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is July (18°C).
The coldest month (with the lowest average low temperature) is January (8°C).
Average rainfall in September
Sao Rafael, Portugal
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is December (99mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Sao Rafael, Portugal
- Average rainfall days in September: 2 days
The month with the highest number of rainy days is December (12 days).
The months with the least rainy days are July and August (1 days).
Average sea temperature in September
Sao Rafael, Portugal
- Average sea temperature in September: 21°C
The best months for swimming (with the highest average sea temperature) are August and September (21°C).
The coldest month (with the lowest average sea temperature) is February (15°C).
Average daylight in September /
Average sunshine in September
Sao Rafael, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h
The month with the most sunshine is July (Average sunshine: 12h).
The months with the least sunshine are January and December (Average sunshine: 5h).
Average UV index in September
Sao Rafael, Portugal
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 9).
The months with the lowest UV index are January and December (UV index 2).
Sao Rafael, Portugal
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