Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the coldest month, with the temperature often reaching an average high of 14.9°C (58.8°F) and an average low of 10.2°C (50.4°F).Humidity
January is the most humid month, with an average relative humidity of 76%.Rainfall
In Barreiro, Portugal, during January, the rain falls for 5.6 days and regularly aggregates up to 5mm (0.2") of precipitation. In Barreiro, during the entire year, the rain falls for 54.2 days and collects up to 61mm (2.4") of precipitation.Daylight
In January, the average length of the day in Barreiro is 9h and 49min.On the first day of January in Barreiro, sunrise is at 07:54 and sunset at 17:25. On the last day of the month, sunrise is at 07:43 and sunset at 17:56 WET.
Sunshine
The month with the least sunshine is January, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Barreiro?
What is the temperature in January in Barreiro?
What is the most humid month in Barreiro?
What is the average humidity in January in Barreiro?
How many days does it rain in January in Barreiro?
How many hours of daylight does Barreiro have in January?
When is the sunrise / sunset in January in Barreiro?
What is the month with the least sunshine in Barreiro?
How long on average sun shines in January in Barreiro?
What is the month with the lowest UV index in Barreiro?
How high is the UV index in January in Barreiro?
Average temperature in January
Barreiro, Portugal
- Average high temperature in January: 14.9°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in January: 10.2°C
The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is February (9.8°C).
Average pressure in January
Barreiro, Portugal
- Average pressure in January: 1022.5mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in January
Barreiro, Portugal
- Average wind speed in January: 16km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is September (13.1km/h).
Average humidity in January
Barreiro, Portugal
- Average humidity in January: 76%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall in January
Barreiro, Portugal
- Average rainfall in January: 5mm
The wettest month (with the highest rainfall) is November (15mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days in January
Barreiro, Portugal
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is November (9.3 days).
The month with the least rainy days is August (0.8 days).
Average daylight in January /
Average sunshine in January
Barreiro, Portugal
- Average daylight in January: 9h and 5min
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 January: 5h 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 24min).
Average sunshine days in January
Barreiro, Portugal
- Average sunshine days in January: 21.9 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is November (17.7 days).
Average UV index in January
Barreiro, Portugal
- Average UV index in January: 4
The months with the highest UV index are May, 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 January
Barreiro, Portugal
- Average cloud cover in January: 40
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 January
Barreiro, Portugal
- Average visibility in January: 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).
Barreiro, Portugal
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