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 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
September
Weather in September
Temperature
Giesta starts September with an average high-temperature of a still moderately hot 25.4°C (77.7°F), hinting at a minimal fluctuation from August. The month of September records an average low-temperature of 14.1°C (57.4°F).Humidity
August and September, with an average relative humidity of 67%, are the least humid months.Rainfall
In Giesta, during September, the rain falls for 7.8 days and regularly aggregates up to 34mm (1.34") of precipitation. In Giesta, during the entire year, the rain falls for 144.4 days and collects up to 918mm (36.14") of precipitation.Daylight
In September, the average length of the day in Giesta is 12h and 28min.On the first day of the month, sunrise is at 07:01 and sunset at 20:06. On the last day of September, in Giesta, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September in Giesta is 9h.UV index
The average daily maximum UV index in September in Giesta is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Giesta in September?
What is the least humid month in Giesta?
What is the average humidity in September in Giesta?
How many days does it rain in September in Giesta?
What is the average length of the day in September in Giesta?
When is the sunrise / sunset in September in Giesta?
How long on average sun shines in September in Giesta?
What is the UV index intensity in September in Giesta?
Average temperature in September
Giesta, Portugal
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (12.1°C).
- Average low temperature in September: 14.1°C
The month with the highest average low temperature is July (14.7°C).
The coldest month (with the lowest average low temperature) is February (5.7°C).
Average pressure in September
Giesta, Portugal
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1022.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Giesta, Portugal
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is February (9.4km/h).
The calmest month (with the lowest average wind speed) is September (7.4km/h).
Average humidity in September
Giesta, Portugal
- Average humidity in September: 67%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (67%).
Average rainfall in September
Giesta, Portugal
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is November (139mm).
The driest month (with the least rainfall) is July (12mm).
Average rainfall days in September
Giesta, Portugal
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is January (17 days).
The month with the least rainy days is August (5.3 days).
Average daylight in September /
Average sunshine in September
Giesta, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Giesta, Portugal
- Average sunshine days in September: 20.6 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is November (12.2 days).
Average UV index in September
Giesta, Portugal
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Giesta, Portugal
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in September
Giesta, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, March, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, April, November and December (8km).
