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 snowfall in January
- Average snowfall 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
January
Weather in January
Temperature
In Gralhas, January is the coldest month, with temperatures averaging a high of 8.9°C (48°F) and a low of 1.8°C (35.2°F).Humidity
With an average relative humidity of 87%, January is the most humid month.Rainfall
In Gralhas, during January, the rain falls for 13.9 days and regularly aggregates up to 58mm (2.28") of precipitation. Throughout the year, in Gralhas, there are 127.3 rainfall days, and 455mm (17.91") of precipitation is accumulated.Snowfall
January and February are months with snowfall in Gralhas. January is the first month it typically snows in Gralhas, Portugal. Throughout January, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, there are 0.8 snowfall days, and 7mm (0.28") of snow is accumulated.Daylight
In January, the average length of the day in Gralhas is 9h and 32min.On the first day of the month, sunrise is at 07:58 and sunset at 17:10. On the last day of January, sunrise is at 07:44 and sunset at 17:43 WET.
Sunshine
With an average of 4.4h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gralhas. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In January, a daily UV index of 2 turns into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Gralhas?
What are January temperatures in Gralhas?
What is the most humid month in Gralhas?
What is the average humidity in January in Gralhas?
How many days does it rain in January in Gralhas?
When does it start to snow in Gralhas?
What is the average length of the day in January in Gralhas?
When are sunrise and sunset in January in Gralhas?
What is the month with the least sunshine in Gralhas?
How many hours of sunshine does Gralhas have in January?
What are the months with the lowest UV index in Gralhas?
What is the UV index reading in January in Gralhas?
Average temperature in January
Gralhas, Portugal
- Average high temperature in January: 8.9°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 January: 1.8°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 January
Gralhas, Portugal
- Average pressure in January: 1021.9mbar
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 January
Gralhas, Portugal
- Average wind speed in January: 7.1km/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 January
Gralhas, Portugal
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).
Average rainfall in January
Gralhas, Portugal
- Average rainfall in January: 58mm
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 January
Gralhas, Portugal
- Average rainfall days in January: 13.9 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 January
Gralhas, Portugal
- Average snowfall in January: 2mm
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 January
Gralhas, Portugal
- Average snowfall days in January: 0.3 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 January /
Average sunshine in January
Gralhas, Portugal
- Average daylight in January: 9h 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 January: 4h 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 January
Gralhas, Portugal
- Average sunshine days in January: 15.3 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 January
Gralhas, Portugal
- Average UV index in January: 2
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 January
Gralhas, Portugal
- Average cloud cover in January: 56
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 January
Gralhas, Portugal
- Average visibility in January: 6km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (6km).
