January weather forecast
Grenchen, Switzerland

January

Weather in January

January, like December, in Grenchen, Switzerland, is an icy winter month, with temperature in the range of an average high of 2.7°C (36.9°F) and an average low of -2.8°C (27°F).

Temperature

Temperature readings reach their annual highs in January, averaging 2.7°C (36.9°F) and a minimum average of -2.8°C (27°F).

Humidity

With an average relative humidity of 87%, January is the most humid month in Grenchen.

Rainfall

In January, in Grenchen, the rain falls for 13.7 days. Throughout January, 60mm (2.36") of precipitation is accumulated. In Grenchen, during the entire year, the rain falls for 195.6 days and collects up to 870mm (34.25") of precipitation.

Snowfall

January through May, September through December are months with snowfall in Grenchen. In Grenchen, in January, during 9.6 snowfall days, 117mm (4.61") of snow is typically accumulated. In Grenchen, during the entire year, snow falls for 37.6 days and aggregates up to 557mm (21.93") of snow.

Daylight

The average length of the day in January is 8h and 59min.
On the first day of the month, sunrise is at 08:16 and sunset at 16:50. On the last day of January, sunrise is at 07:57 and sunset at 17:30 CET.

Sunshine

The average sunshine in January in Grenchen, Switzerland, is 5.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during January translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

What is the coldest month in Grenchen?
January is the month when Grenchen experiences its coldest temperatures, averaging a high of 2.7°C (36.9°F) and a low of -2.8°C (27°F).
How cold is January in Grenchen?
The average high-temperature and low-temperature in Grenchen, Switzerland, during January are 2.7°C (36.9°F) and -2.8°C (27°F) respectively.
What is the most humid month in Grenchen?
January is the most humid month in Grenchen, with an average relative humidity of 87%.
What is the average humidity in January in Grenchen?
In Grenchen, the average relative humidity in January is 87%.
How much does it rain in Grenchen in January?
In Grenchen, during January, the rain falls for 13.7 days and regularly aggregates up to 60mm (2.36") of precipitation.
How many days does it snow in January in Grenchen?
In January, in Grenchen, it is snowing for 9.6 days. Throughout January, 117mm (4.61") of snow is accumulated.
How many hours of daylight does Grenchen have in January?
The average day length in January in Grenchen, Switzerland, is 8h and 59min.
What time are sunrise and sunset in January in Grenchen?
On the first day of January in Grenchen, sunrise is at 08:16 and sunset at 16:50. On the last day of the month, sunrise is at 07:57 and sunset at 17:30 CET.
How long on average sun shines in January in Grenchen?
The average sunshine duration in January in Grenchen is 5.2h.
When is the lowest UV index in Grenchen?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grenchen.
What is the UV index reading in January in Grenchen?
In January, the average daily maximum UV index in Grenchen, Switzerland, is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Grenchen, Switzerland
  • Average high temperature in January: 2.7°C

The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.7°C).

  • Average low temperature in January: -2.8°C

The month with the highest average low temperature is July (11.9°C).
The coldest months (with the lowest average low temperature) are January and February (-2.8°C).

Average pressure in January
Grenchen, Switzerland
  • Average pressure in January: 1019.5mbar

The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in January
Grenchen, Switzerland
  • Average wind speed in January: 9.7km/h

The windiest month (with the highest average wind speed) is February (10.2km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).

Average humidity in January
Grenchen, Switzerland
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, July and August (79%).

Average rainfall in January
Grenchen, Switzerland
  • Average rainfall in January: 60mm

The wettest month (with the highest rainfall) is June (97mm).
The driest month (with the least rainfall) is September (46mm).

Average rainfall days in January
Grenchen, Switzerland
  • Average rainfall days in January: 13.7 days

The month with the highest number of rainy days is May (21.9 days).
The month with the least rainy days is February (12.3 days).

Average snowfall in January
Grenchen, Switzerland
  • Average snowfall in January: 117mm

The month with the highest snowfall is February (133mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in January
Grenchen, Switzerland
  • Average snowfall days in January: 9.6 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Grenchen, 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 36min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in January
Grenchen, Switzerland
  • Average sunshine days in January: 11.6 days

The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is May (6.7 days).

Average UV index in January
Grenchen, 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, November and December (UV index 2).

Average cloud cover in January
Grenchen, Switzerland
  • Average cloud cover in January: 49

The months with the most cloud cover are January, February and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
Grenchen, 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).

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