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
The month of January sees the lowest average temperatures in Heidelberg, reaching 4°C (39.2°F) at the peak and -0.3°C (31.5°F) at the low.Humidity
The most humid month in Heidelberg is January, with an average relative humidity of 86%.Rainfall
In January, the rain falls for 13.3 days. Throughout January, 32mm (1.26") of precipitation is accumulated. In Heidelberg, during the entire year, the rain falls for 164.2 days and collects up to 434mm (17.09") of precipitation.Snowfall
Months with snowfall in Heidelberg are January through March, October through December. In Heidelberg, Germany, in January, during 5.4 snowfall days, 28mm (1.1") of snow is typically accumulated. In Heidelberg, Germany, during the entire year, snow falls for 15.5 days and aggregates up to 116mm (4.57") of snow.Daylight
In Heidelberg, the average length of the day in January is 8h and 44min.On the first day of January in Heidelberg, sunrise is at 08:20 and sunset at 16:36. On the last day of the month, sunrise is at 07:58 and sunset at 17:18 CET.
Sunshine
In January, the average sunshine is 4.2h.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 health risk from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in January transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What part of the year is the coldest in Heidelberg?
How cold is January in Heidelberg?
What is the most humid month in Heidelberg?
What is the average humidity in January in Heidelberg?
How much does it rain in Heidelberg in January?
How much does it snow in Heidelberg in January?
What is the average length of the day in January in Heidelberg?
What time are sunrise and sunset in January in Heidelberg?
How long on average sun shines in January in Heidelberg?
What are the months with the lowest UV index in Heidelberg?
What is the UV index intensity in January in Heidelberg?
Average temperature in January
Heidelberg, Germany
- Average high temperature in January: 4°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (4°C).
- Average low temperature in January: -0.3°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in January
Heidelberg, Germany
- Average pressure in January: 1018.3mbar
The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in January
Heidelberg, Germany
- Average wind speed in January: 11.6km/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 (8.7km/h).
Average humidity in January
Heidelberg, Germany
- Average humidity in January: 86%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are July and August (67%).
Average rainfall in January
Heidelberg, Germany
- Average rainfall in January: 32mm
The wettest month (with the highest rainfall) is May (50mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in January
Heidelberg, Germany
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in January
Heidelberg, Germany
- Average snowfall in January: 28mm
The month with the highest snowfall is December (44mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in January
Heidelberg, Germany
- Average snowfall days in January: 5.4 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Heidelberg, Germany
- Average daylight in January: 8h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in January
Heidelberg, Germany
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is December (11.5 days).
Average UV index in January
Heidelberg, Germany
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Heidelberg, Germany
- Average cloud cover in January: 57
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Heidelberg, Germany
- Average visibility in January: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
Heidelberg, Germany
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