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
The arrival of September sees a recorded average high-temperature of a pleasant 22.8°C (73°F), showing little divergence from the previous month's conditions. A mild drop to an average of 21.7°C (71.1°F) marks the nights during September.Humidity
In Santana, the average relative humidity in September is 76%.Rainfall
In Santana, Portugal, during September, the rain falls for 6.9 days and regularly aggregates up to 10mm (0.39") of precipitation. Throughout the year, there are 116.4 rainfall days, and 232mm (9.13") of precipitation is accumulated.Sea temperature
August and September, with an average sea temperature of 23°C (73.4°F), are months with the warmest seawater in Santana.Note: For those not fond of cold temperatures, taking a swim at 23°C (73.4°F) may require consideration of the sunshine, wind, and ambient temperature. While wetsuits are not mandatory, they can enhance the experience.
Daylight
In September, the average length of the day is 12h and 22min.On the first day of September in Santana, Portugal, sunrise is at 07:42 and sunset at 20:32. On the last day of the month, sunrise is at 08:01 and sunset at 19:53 WEST.
Sunshine
In Santana, the average sunshine in September is 8.9h.UV index
July 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 threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 6 in September transforms into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heads up! UV intensity is amplified by reflections from water and sand.
Frequently asked questions
What is the usual temperature for Santana in September?
What is the average humidity in September in Santana?
How much does it rain in Santana in September?
When is the sea warmest in Santana?
What is the water temperature in September in Santana?
How many hours of daylight does Santana have in September?
When are sunrise and sunset in September in Santana?
How long on average sun shines in September in Santana?
What is the month with the highest UV index in Santana?
What is the UV index reading in September in Santana?
Average temperature in September
Santana, Portugal
- Average high temperature in September: 22.8°C
The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are February and March (16.9°C).
- Average low temperature in September: 21.7°C
The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).
Average pressure in September
Santana, 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
Santana, Portugal
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).
Average humidity in September
Santana, Portugal
- Average humidity in September: 76%
The months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).
Average rainfall in September
Santana, Portugal
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
Santana, Portugal
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).
Average sea temperature in September
Santana, 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
Santana, 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 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).
Average sunshine days in September
Santana, Portugal
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).
Average UV index in September
Santana, Portugal
- Average UV index in September: 6
The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).
Average cloud cover in September
Santana, Portugal
- Average cloud cover in September: 30
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Santana, 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).
Santana, Portugal
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