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 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
August and September mark Santo da Serra's peak of temperatures, averaging a high-temperature of 22.8°C (73°F).Humidity
In September, the average relative humidity in Santo da Serra, Portugal, is 76%.Rainfall
In Santo da Serra, during September, the rain falls for 6.7 days and regularly aggregates up to 10mm (0.39") of precipitation. In Santo da Serra, during the entire year, the rain falls for 105.6 days and collects up to 190mm (7.48") of precipitation.Sea temperature
The months with the warmest seawater in Santo da Serra are August and September, with an average sea temperature of 23°C (73.4°F).Note: If you're wary of the cold, the surrounding conditions—sunshine, wind, and air temperature become crucial when swimming in 23°C (73.4°F) waters. Olympic standards, for reference, are set between 25°C (77°F) and 28°C (82.4°F).
Daylight
In Santo da Serra, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 07:42 and sunset at 20:31. On the last day of September, in Santo da Serra, sunrise is at 08:01 and sunset at 19:53 WEST.
Sunshine
The average sunshine in September is 8.8h.UV index
June through October, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Frequently asked questions
What is the hottest time of year in Santo da Serra?
What are September temperatures in Santo da Serra?
What is the average humidity in September in Santo da Serra?
How many days does it rain in September in Santo da Serra?
When is the sea warmest in Santo da Serra?
What is the sea temperature in September in Santo da Serra?
What is the average length of the day in September in Santo da Serra?
What time are sunrise and sunset in September in Santo da Serra?
How many hours of sunshine does Santo da Serra have in September?
When is the highest UV index in Santo da Serra?
What is the UV index intensity in September in Santo da Serra?
Average temperature in September
Santo da Serra, Portugal
- Average high temperature in September: 22.8°C
The warmest months (with the highest average high temperature) are August and September (22.8°C).
The months with the lowest average high temperature are February and March (17.3°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is September (22.1°C).
The coldest month (with the lowest average low temperature) is March (15.9°C).
Average pressure in September
Santo da Serra, Portugal
- Average pressure in September: 1019mbar
The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).
Average wind speed in September
Santo da Serra, Portugal
- Average wind speed in September: 18.5km/h
The windiest months (with the highest average wind speed) are February and March (23.8km/h).
The calmest month (with the lowest average wind speed) is September (18.5km/h).
Average humidity in September
Santo da Serra, Portugal
- Average humidity in September: 76%
The month with the highest relative humidity is August (81%).
The months with the lowest relative humidity are January, February and November (73%).
Average rainfall in September
Santo da Serra, Portugal
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is October (34mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Santo da Serra, Portugal
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is November (14.2 days).
The month with the least rainy days is August (4.3 days).
Average sea temperature in September
Santo da Serra, Portugal
- Average sea temperature in September: 23°C
The best months for swimming (with the highest average sea temperature) are August and September (23°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (18°C).
Average daylight in September /
Average sunshine in September
Santo da Serra, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 36min).
Average sunshine days in September
Santo da Serra, Portugal
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is August (20.6 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in September
Santo da Serra, Portugal
- Average UV index in September: 6
The months with the highest UV index are June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 5).
Average cloud cover in September
Santo da Serra, Portugal
- Average cloud cover in September: 31
The months with the most cloud cover are January and November (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Santo da Serra, Portugal
- 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).
Santo da Serra, Portugal
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