Climate and monthly weather forecast
Merstham, United Kingdom

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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). 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). Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in Merstham, United Kingdom, with an average temperature varying between 2.7°C (36.9°F) and 7.5°C (45.5°F). Merstham's February reports an average high-temperature of a still frosty 7.5°C (45.5°F), exhibiting a minor difference from January. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Merstham, United Kingdom, with an average temperature fluctuating between 10.4°C (50.7°F) and 3.7°C (38.7°F). March notes an average high-temperature of a cool 10.4°C (50.7°F), subtly differing from February's 7.5°C (45.5°F). Weather in March »

Weather in April

April is a mild spring month in Merstham, United Kingdom, with an average temperature fluctuating between 5.6°C (42.1°F) and 14°C (57.2°F). April's onset is marked by a subtle temperature increase, moving from a cool 10.4°C (50.7°F) in March to a moderate 14°C (57.2°F). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Merstham, United Kingdom, with an average temperature varying between 8°C (46.4°F) and 16.6°C (61.9°F). April's transformation into May witnesses an average high-temperature of a still refreshing 16.6°C (61.9°F), noting a minor change from the preceding month. Weather in May »

Weather in June

The first month of the summer, June, is also an enjoyable month in Merstham, United Kingdom, with an average temperature ranging between min 10.9°C (51.6°F) and max 19.5°C (67.1°F). June is marked by an average high-temperature of a still refreshing 19.5°C (67.1°F), almost identical to the preceding month. Weather in June »

Weather in July

July in Merstham, United Kingdom, is an agreeable summer month, with an average temperature varying between 13.4°C (56.1°F) and 21.9°C (71.4°F). Merstham experiences its highest temperatures in July, with an average peak of 21.9°C (71.4°F) and a low of 13.4°C (56.1°F). Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in Merstham, United Kingdom, with an average temperature fluctuating between 13.8°C (56.8°F) and 21.6°C (70.9°F). As Merstham, United Kingdom, transitions into August, the average high-temperature stands at a still agreeable 21.6°C (70.9°F), offering little variation from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in Merstham, United Kingdom, with temperature in the range of an average high of 18.7°C (65.7°F) and an average low of 11.2°C (52.2°F). The transition into September shows a subtle variation to a comfortable 18.7°C (65.7°F) from August's 21.6°C (70.9°F) in the average high-temperature. Weather in September »

Weather in October

October, like September, is another mild autumn month in Merstham, United Kingdom, with an average temperature ranging between max 15.1°C (59.2°F) and min 9.2°C (48.6°F). The transition into October subtly indicates a reduction in the average high-temperature, down to a mild 15.1°C (59.2°F) from September's enjoyable 18.7°C (65.7°F). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Merstham, United Kingdom, with an average temperature varying between 5.6°C (42.1°F) and 10.2°C (50.4°F). As November begins, there is a minor decrease in the average high-temperature, softly falling from a moderate 15.1°C (59.2°F) in October to a fresh 10.2°C (50.4°F). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Merstham, United Kingdom, with temperature in the range of an average low of 3.7°C (38.7°F) and an average high of 7.9°C (46.2°F). Merstham's weather in December displays an average high-temperature of a frosty 7.9°C (46.2°F), showing minor disparity from November's 10.2°C (50.4°F). Weather in December »
Updated: Feb 7, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

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 in Merstham, United Kingdom.

How much does it rain in Merstham?

In Merstham, during the entire year, the rain falls for 162.7 days and collects up to 388mm (15.28") of precipitation.

When does it snow in Merstham?

Months with snowfall in Merstham are January through April, November and December.

How many days does it snow in Merstham?

In Merstham, United Kingdom, during the entire year, snow falls for 10.1 days and aggregates up to 66mm (2.6") of snow.

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 snowiest month in Merstham?

The month with the most snowfall is February, when snow falls for 3.8 days and typically aggregates up to 25mm (0.98") of snow.

What is the month with the least sunshine in Merstham?

February has the least sunshine of the year in Merstham, United Kingdom, with an average of 3.6h of sunshine.

What is the driest month in Merstham?

The month with the least rainfall in Merstham is April, when the rain falls for 13.6 days and typically collects 21mm (0.83") of precipitation.

When it does not snow in Merstham?

May through October are months without snowfall in Merstham.

When are the longest days in Merstham?

June has the longest days of the year in Merstham, with an average of 16h and 30min of daylight.

What are the months with the highest UV index in Merstham?

The months with the highest UV index are June and July, with an average maximum UV index of 5.

What is the warmest month in Merstham?

In Merstham, July records the average highest temperatures, peaking at 21.9°C (71.4°F) and reaching a low of 13.4°C (56.1°F).

What are the least humid months in Merstham?

The months with the lowest humidity are July and August, with an average relative humidity of 74%.

What are the months with the most sunshine in Merstham?

The months with the most sunshine in Merstham are July and August, with an average of 8.4h of sunshine.

When is Daylight Saving Time (DST) in Merstham?

On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Merstham, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.

What is the most humid month in Merstham?

With an average relative humidity of 89%, December is the most humid month in Merstham.

What is the rainiest month in Merstham?

The month with the most rainfall in Merstham, United Kingdom, is December, when the rain falls for 13.7 days and typically aggregates up to 47mm (1.85") of precipitation.

What is the month with the shortest days in Merstham?

The month with the shortest days in Merstham is December, with an average of 8h and 0min of daylight.

Average temperature
Merstham, United Kingdom

Average temperature - Merstham, United Kingdom

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).

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
Merstham, United Kingdom

Average pressure - Merstham, United Kingdom

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

Average wind speed
Merstham, United Kingdom

Average wind speed - Merstham, United Kingdom

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
Merstham, United Kingdom

Average humidity - Merstham, United Kingdom

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

Average rainfall
Merstham, United Kingdom

Average rainfall - Merstham, United Kingdom

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

Average rainfall days
Merstham, United Kingdom

Average rainfall days - Merstham, United Kingdom

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
Merstham, United Kingdom

Average snowfall - Merstham, United Kingdom

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
Merstham, United Kingdom

Average snowfall days - Merstham, United Kingdom

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 / Average sunshine
Merstham, United Kingdom

Average daylight / Average sunshine - Merstham, United Kingdom

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).

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
Merstham, United Kingdom

Average sunshine days - Merstham, United Kingdom

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
Merstham, United Kingdom

Average UV index - Merstham, United Kingdom

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
Merstham, United Kingdom

Average cloud cover - Merstham, United Kingdom

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
Merstham, United Kingdom

Average visibility - Merstham, United Kingdom

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).

Merstham, United Kingdom

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