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 witnesses a gentle descent in average high-temperature, descending from August's 29.1°C (84.4°F) to a still warm 25.7°C (78.3°F). Montalegre logs a substantial downturn to a cool 11.3°C (52.3°F) during September nights, a considerable shift from daytime highs.Humidity
In September, the average relative humidity is 60%.Rainfall
In September, the rain falls for 6.3 days. Throughout September, 18mm (0.71") of precipitation is accumulated. Throughout the year, there are 127.3 rainfall days, and 455mm (17.91") of precipitation is accumulated.Snowfall
In Montalegre, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 06:57 and sunset at 20:04. On the last day of September, sunrise is at 07:27 and sunset at 19:14 WEST.
Sunshine
In Montalegre, the average sunshine in September is 9.4h.UV index
In Montalegre, Portugal, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Montalegre in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Montalegre, Portugal
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in September: 11.3°C
The months with the highest average low temperature are July and August (13.1°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure in September
Montalegre, Portugal
- Average pressure in September: 1017.6mbar
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
Montalegre, Portugal
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest months (with the lowest average wind speed) are September and October (6.5km/h).
Average humidity in September
Montalegre, Portugal
- Average humidity in September: 60%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Montalegre, Portugal
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (72mm).
The driest months (with the least rainfall) are July and August (11mm).
Average rainfall days in September
Montalegre, Portugal
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in September
Montalegre, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Montalegre, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Montalegre, 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 2min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Montalegre, Portugal
- Average sunshine days in September: 21.8 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in September
Montalegre, 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
Montalegre, Portugal
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Montalegre, Portugal
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (6km).
