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
September
Weather in September
Temperature
September brings a minor shift in the average high-temperature, adjusting from 28.3°C (82.9°F) in August to a still warm 24.3°C (75.7°F). September is characterized by a distinct thermal shift, with nighttime lows averaging at a cool 11.5°C (52.7°F).Humidity
In Rebordãos, the average relative humidity in September is 57%.Rainfall
In Rebordãos, Portugal, in September, during 7.2 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, in Rebordãos, there are 141.7 rainfall days, and 532mm (20.94") of precipitation is accumulated.Snowfall
In Rebordãos, snow does not fall in April through October.Daylight
In Rebordãos, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 06:53 and sunset at 20:00. On the last day of September, sunrise is at 07:23 and sunset at 19:10 WEST.
Sunshine
In Rebordãos, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Rebordãos, Portugal, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rebordãos in September?
What is the average humidity in September in Rebordãos?
How much does it rain in Rebordãos in September?
When it does not snow in Rebordãos?
What is the average length of the day in September in Rebordãos?
What time are sunrise and sunset in September in Rebordãos?
How long on average sun shines in September in Rebordãos?
What is the UV index reading in September in Rebordãos?
Average temperature in September
Rebordãos, Portugal
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in September
Rebordãos, Portugal
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Rebordãos, Portugal
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).
Average humidity in September
Rebordãos, Portugal
- Average humidity in September: 57%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Rebordãos, Portugal
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in September
Rebordãos, Portugal
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is April (17.6 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in September
Rebordãos, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Rebordãos, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rebordãos, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Rebordãos, Portugal
- Average sunshine days in September: 20.8 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in September
Rebordãos, Portugal
- Average UV index in September: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Rebordãos, Portugal
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in September
Rebordãos, Portugal
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
