January weather forecast
Merstham, United Kingdom

January

Weather in January

January, like December, is another chilly winter month in Merstham, United Kingdom, with an average temperature fluctuating between 2.4°C (36.3°F) and 6.7°C (44.1°F).

Temperature

Merstham experiences its lowest average temperatures in January, reaching a peak of 6.7°C (44.1°F) and a minimum of 2.4°C (36.3°F).

Humidity

The average relative humidity in January is 88%.

Rainfall

In Merstham, United Kingdom, in January, during 14.1 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Merstham, during the entire year, the rain falls for 162.7 days and collects up to 388mm (15.28") of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Merstham, during January, snow falls for 2.8 days and regularly aggregates up to 18mm (0.71") of snow. In Merstham, during the entire year, snow falls for 10.1 days and aggregates up to 66mm (2.6") of snow.

Daylight

In Merstham, the average length of the day in January is 8h and 29min.
On the first day of the month, sunrise is at 8:04 am and sunset at 4:03 pm. On the last day of January, in Merstham, sunrise is at 7:39 am and sunset at 4:47 pm GMT.

Sunshine

In Merstham, United Kingdom, the average sunshine in January is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Merstham. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 2 in January leads to these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Frequently asked questions

What are the coldest months in Merstham?
January, with its average high-temperature of 6.7°C (44.1°F) and an average low-temperature of 2.4°C (36.3°F), holds the record as the coldest month.
Is it cold in Merstham during January?
The average high-temperature and low-temperature in Merstham, United Kingdom, during January are 6.7°C (44.1°F) and 2.4°C (36.3°F) respectively.
What is the average humidity in January in Merstham?
In January, the average relative humidity in Merstham, United Kingdom, is 88%.
How much does it rain in Merstham in January?
In Merstham, United Kingdom, in January, it is raining for 14.1 days, with typically 31mm (1.22") of accumulated precipitation.
How much does it snow in Merstham in January?
In Merstham, United Kingdom, during January, snow falls for 2.8 days and regularly aggregates up to 18mm (0.71") of snow.
How many hours of daylight does Merstham have in January?
The average day length in January is 8h and 29min.
What time are sunrise and sunset in January in Merstham?
In January, on the first day of the month, sunrise is at 8:04 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:47 pm GMT.
How long on average sun shines in January in Merstham?
The average sunshine duration in January in Merstham is 4.2h.
What is the month with the lowest UV index in Merstham?
The months with the lowest UV index in Merstham are January, February, November and December, with an average maximum UV index of 2.
What is the UV index reading in January in Merstham?
In Merstham, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Merstham, United Kingdom
  • Average high temperature in January: 6.7°C

The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (6.7°C).

  • Average low temperature in January: 2.4°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).

Average pressure in January
Merstham, United Kingdom
  • Average pressure in January: 1014.7mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in January
Merstham, United Kingdom
  • Average wind speed in January: 16.7km/h

The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest months (with the lowest average wind speed) are July, August and September (12.8km/h).

Average humidity in January
Merstham, United Kingdom
  • Average humidity in January: 88%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).

Average rainfall in January
Merstham, United Kingdom
  • Average rainfall in January: 31mm

The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (21mm).

Average rainfall days in January
Merstham, United Kingdom
  • Average rainfall days in January: 14.1 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is September (11.1 days).

Average snowfall in January
Merstham, United Kingdom
  • Average snowfall in January: 18mm

The month with the highest snowfall is February (25mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in January
Merstham, United Kingdom
  • Average snowfall days in January: 2.8 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Merstham, United Kingdom
  • Average daylight in January: 8h and 3min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in January: 4h and 1min

The months with the most sunshine are July and August (Average sunshine: 8h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in January
Merstham, United Kingdom
  • Average sunshine days in January: 13.3 days

The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (12.3 days).

Average UV index in January
Merstham, United Kingdom
  • 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
Merstham, United Kingdom
  • Average cloud cover in January: 58

The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 47).

Average visibility in January
Merstham, United Kingdom
  • Average visibility in January: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).

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