September weather forecastAdães, Portugal
September
Weather in September
The first month of the autumn, September, is still a warm month in Adães, Portugal, with an average temperature ranging between max 24.6°C (76.3°F) and min 15.1°C (59.2°F).Temperature
Adães's average high-temperature marks a still warm 24.6°C (76.3°F) with the advent of September, closely mirroring that of the preceding month. Adães's nighttime temperature in September drops to an average of 15.1°C (59.2°F).Humidity
September is the least humid month, with an average relative humidity of 68%.Rainfall
In Adães, in September, it is raining for 7.3 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, there are 139.3 rainfall days, and 934mm (36.77") of precipitation is accumulated.Daylight
In Adães, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:00 and sunset at 20:07. On the last day of September, in Adães, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
In Adães, the average sunshine in September is 9h.UV index
In Adães, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Adães, Portugal
- Average high temperature in September: 24.6°C
The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in September: 15.1°C
The month with the highest average low temperature is August (15.5°C).
The coldest months (with the lowest average low temperature) are January and February (6.9°C).
Average pressure in September
Adães, Portugal
- Average pressure in September: 1017.5mbar
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
Adães, Portugal
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (11.4km/h).
The calmest month (with the lowest average wind speed) is September (8.8km/h).
Average humidity in September
Adães, Portugal
- Average humidity in September: 68%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is September (68%).
Average rainfall in September
Adães, Portugal
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (144mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Adães, Portugal
- Average rainfall days in September: 7.3 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (4.8 days).
Average daylight in September /
Average sunshine in September
Adães, Portugal
- Average daylight in September: 12h and 30min
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 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Adães, Portugal
- Average sunshine days in September: 21 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in September
Adães, 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, November and December (UV index 3).
Average cloud cover in September
Adães, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Adães, Portugal
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





