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
Weather in January
Temperature
Porrentruy, Switzerland, notes the coldest temperatures in January, with a high average of 3.3°C (37.9°F) and a low of -2°C (28.4°F).Humidity
With an average relative humidity of 88%, January is the most humid month in Porrentruy.Rainfall
In January, in Porrentruy, the rain falls for 13.3 days. Throughout January, 60mm (2.36") of precipitation is accumulated. In Porrentruy, during the entire year, the rain falls for 188.6 days and collects up to 818mm (32.2") of precipitation.Snowfall
January through May, October through December are months with snowfall in Porrentruy. In Porrentruy, in January, during 12.2 snowfall days, 158mm (6.22") of snow is typically accumulated. In Porrentruy, during the entire year, snow falls for 49 days and aggregates up to 745mm (29.33") of snow.Daylight
In January, the average length of the day is 8h and 58min.On the first day of the month, sunrise is at 08:19 and sunset at 16:51. On the last day of January, in Porrentruy, Switzerland, sunrise is at 07:59 and sunset at 17:30 CET.
Sunshine
In Porrentruy, the average sunshine in January is 4.5h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Porrentruy. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What time of the year is the coldest in Porrentruy?
How cold is it in Porrentruy in January?
What is the most humid month in Porrentruy?
What is the average humidity in January in Porrentruy?
How many days does it rain in January in Porrentruy?
How many days does it snow in January in Porrentruy?
What is the average length of the day in January in Porrentruy?
When is the sunrise / sunset in January in Porrentruy?
How long on average sun shines in January in Porrentruy?
What are the months with the lowest UV index in Porrentruy?
How high is the UV index in January in Porrentruy?
Average temperature in January
Porrentruy, Switzerland
- Average high temperature in January: 3.3°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in January: -2°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in January
Porrentruy, Switzerland
- Average pressure in January: 1019.5mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in January
Porrentruy, Switzerland
- Average wind speed in January: 11.8km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).
Average humidity in January
Porrentruy, Switzerland
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in January
Porrentruy, Switzerland
- Average rainfall in January: 60mm
The wettest month (with the highest rainfall) is June (94mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in January
Porrentruy, Switzerland
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is June (20.9 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in January
Porrentruy, Switzerland
- Average snowfall in January: 158mm
The month with the highest snowfall is February (170mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Porrentruy, Switzerland
- Average snowfall days in January: 12.2 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Porrentruy, Switzerland
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in January
Porrentruy, Switzerland
- Average sunshine days in January: 11.2 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is June (6.7 days).
Average UV index in January
Porrentruy, Switzerland
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Porrentruy, Switzerland
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Porrentruy, Switzerland
- Average visibility in January: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
Porrentruy, Switzerland
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