July weather forecast
Greenwich, United Kingdom

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Weather in July

July is a pleasant summer month in Greenwich, United Kingdom, with an average temperature varying between 13.5°C (56.3°F) and 22.3°C (72.1°F).

Temperature

Temperature records mark July as the warmest month, with highs averaging 22.3°C (72.1°F) and lows at 13.5°C (56.3°F).

Humidity

The average relative humidity in July in Greenwich is 73%.

Rainfall

In July, in Greenwich, United Kingdom, the rain falls for 15.9 days. Throughout July, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Greenwich, there are 148.8 rainfall days, and 306mm (12.05") of precipitation is accumulated.

Snowfall

In Greenwich, snow does not fall in May through October.

Daylight

The average length of the day in July is 16h and 5min.
On the first day of July in Greenwich, sunrise is at 4:47 am and sunset at 9:20 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:49 pm BST.

Sunshine

In Greenwich, the average sunshine in July is 7.8h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in July interprets into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What time of the year is the hottest in Greenwich?

With average high temperatures of 22.3°C (72.1°F) and lows of 13.5°C (56.3°F), July is the warmest month.

What is the usual temperature for Greenwich in July?

In July, in Greenwich, the average high-temperature is 22.3°C (72.1°F), and the average low-temperature is 13.5°C (56.3°F).

What is the average humidity in July in Greenwich?

The average relative humidity in July in Greenwich is 73%.

How many days does it rain in July in Greenwich?

In Greenwich, during July, the rain falls for 15.9 days and regularly aggregates up to 29mm (1.14") of precipitation.

When it does not snow in Greenwich?

May through October are months without snowfall.

What is the average length of the day in July in Greenwich?

In July, the average day length in Greenwich is 16h and 5min.

When are sunrise and sunset in July in Greenwich?

On the first day of July in Greenwich, United Kingdom, sunrise is at 4:47 am and sunset at 9:20 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:49 pm BST.

How many hours of sunshine does Greenwich have in July?

The average sunshine duration in July in Greenwich is 7.8h.

When is the highest UV index in Greenwich?

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

How high is the UV index in July in Greenwich?

The average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
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 July
Greenwich, United Kingdom

Average temperature in July - Greenwich, United Kingdom
  • Average high temperature in July: 22.3°C

The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (6.8°C).

  • Average low temperature in July: 13.5°C

The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).

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Average pressure in July
Greenwich, United Kingdom

Average pressure in July - Greenwich, United Kingdom
  • Average pressure in July: 1015.3mbar

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).

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Average wind speed in July
Greenwich, United Kingdom

Average wind speed in July - Greenwich, United Kingdom
  • Average wind speed in July: 12.8km/h

The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is September (12.7km/h).

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Average humidity in July
Greenwich, United Kingdom

Average humidity in July - Greenwich, United Kingdom
  • Average humidity in July: 73%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).

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Average rainfall in July
Greenwich, United Kingdom

Average rainfall in July - Greenwich, United Kingdom
  • Average rainfall in July: 29mm

The wettest month (with the highest rainfall) is June (33mm).
The driest month (with the least rainfall) is April (17mm).

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Average rainfall days in July
Greenwich, United Kingdom

Average rainfall days in July - Greenwich, United Kingdom
  • Average rainfall days in July: 15.9 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is September (9.6 days).

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Average snowfall in July
Greenwich, United Kingdom

Average snowfall in July - Greenwich, United Kingdom
  • Average snowfall in July: 0mm

The month with the highest snowfall is February (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in July
Greenwich, United Kingdom

Average snowfall days in July - Greenwich, United Kingdom
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Greenwich, United Kingdom

Average daylight in July / Average sunshine in July - Greenwich, United Kingdom
  • Average daylight in July: 16h and 1min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in July: 7h and 5min

The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).

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Average sunshine days in July
Greenwich, United Kingdom

Average sunshine days in July - Greenwich, United Kingdom
  • Average sunshine days in July: 12.5 days

The month with the most sunshine days is September (18 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in July
Greenwich, United Kingdom

Average UV index in July - Greenwich, United Kingdom
  • Average UV index in July: 5

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in July
Greenwich, United Kingdom

Average cloud cover in July - Greenwich, United Kingdom
  • Average cloud cover in July: 51

The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 49).

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Average visibility in July
Greenwich, United Kingdom

Average visibility in July - Greenwich, United Kingdom
  • Average visibility in July: 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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Greenwich, United Kingdom

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