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
The start of September sees the average high-temperature at a still warm 23.8°C (74.8°F), showing little difference from August's 24.5°C (76.1°F). Laveiras, in September, observes a steady average low-temperature of 18.3°C (64.9°F).Humidity
May, September and October, with an average relative humidity of 72%, are the least humid months.Rainfall
In Laveiras, in September, it is raining for 5.2 days, with typically 12mm (0.47") of accumulated precipitation. Throughout the year, there are 86.1 rainfall days, and 217mm (8.54") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 07:06 and sunset at 20:07. On the last day of the month, sunrise is at 07:32 and sunset at 19:21 WEST.
Sunshine
The average sunshine in September is 9.4h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 6 in September transforms into this advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September in Laveiras?
How many hours of daylight does Laveiras have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Laveiras have in September?
What are the months with the highest UV index?
How high is the UV index in September in Laveiras?
Average temperature in September
Laveiras, Portugal
- Average high temperature in September: 23.8°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is February (10.8°C).
Average pressure in September
Laveiras, Portugal
- Average pressure in September: 1017mbar
The months with the highest atmospheric pressure are January and December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Laveiras, Portugal
- Average wind speed in September: 15.6km/h
The windiest month (with the highest average wind speed) is February (19.5km/h).
The calmest months (with the lowest average wind speed) are September and October (15.6km/h).
Average humidity in September
Laveiras, Portugal
- Average humidity in September: 72%
The months with the highest relative humidity are January, April, July and December (75%).
The months with the lowest relative humidity are May, September and October (72%).
Average rainfall in September
Laveiras, Portugal
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is November (44mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Laveiras, Portugal
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is November (12.4 days).
The month with the least rainy days is August (1.9 days).
Average daylight in September /
Average sunshine in September
Laveiras, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- 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 30min).
Average sunshine days in September
Laveiras, Portugal
- Average sunshine days in September: 24.3 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is November (15.6 days).
Average UV index in September
Laveiras, Portugal
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Laveiras, Portugal
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Laveiras, 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).
