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 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
São João de Areias registers an average high-temperature of a still warm 26.5°C (79.7°F) at the commencement of September, closely related to the preceding month. São João de Areias encounters a significant temperature differential, with an average low-temperature of 13.5°C (56.3°F) during September nights.Humidity
The average relative humidity in September in São João de Areias is 63%.Rainfall
In São João de Areias, in September, during 6.2 rainfall days, 21mm (0.83") of precipitation is typically accumulated. Throughout the year, there are 127.4 rainfall days, and 613mm (24.13") of precipitation is accumulated.Snowfall
In São João de Areias, snow does not fall in May through October and December.Daylight
In São João de Areias, the average length of the day in September is 12h and 28min.On the first day of September in São João de Areias, sunrise is at 07:00 and sunset at 20:04. On the last day of the month, sunrise is at 07:28 and sunset at 19:15 WEST.
Sunshine
The average sunshine in September in São João de Areias is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What are September temperatures in São João de Areias?
What is the average humidity in September in São João de Areias?
How many days does it rain in September in São João de Areias?
When it does not snow in São João de Areias?
How many hours of daylight does São João de Areias have in September?
When are sunrise and sunset in September in São João de Areias?
How many hours of sunshine does São João de Areias have in September?
What is the UV index intensity in September in São João de Areias?
Average temperature in September
São João de Areias, Portugal
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (12°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).
Average pressure in September
São João de Areias, Portugal
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
São João de Areias, Portugal
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is September (6.9km/h).
Average humidity in September
São João de Areias, Portugal
- Average humidity in September: 63%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
São João de Areias, Portugal
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is November (96mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in September
São João de Areias, Portugal
- Average rainfall days in September: 6.2 days
The months with the highest number of rainy days are January and April (14.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in September
São João de Areias, Portugal
- Average snowfall in September: 0mm
The months with the highest snowfall are January and March (2mm).
The months with the least snowfall are May, June, July, August, September, October and December (0mm).
Average snowfall days in September
São João de Areias, Portugal
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February and March (0.3 days).
The months with the least snowfall days are May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
São João de Areias, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
São João de Areias, Portugal
- Average sunshine days in September: 21.9 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in September
São João de Areias, Portugal
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
São João de Areias, Portugal
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
São João de Areias, Portugal
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
São João de Areias, Portugal
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