Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
July
Weather in July
Temperature
London starts July with an average high-temperature of a still moderately hot 27.5°C (81.5°F), hinting at a minimal fluctuation from June. London encounters an average temperature dip to a still moderately hot 26.2°C (79.2°F) throughout July, subtly lower than its daytime maximum.Heat index
The heat index in July is computed to be a tropical 31°C (87.8°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In London, the average relative humidity in July is 79%.Rainfall
In London, in July, during 13 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 156.7 rainfall days, and 491mm (19.33") of precipitation is accumulated.Sea temperature
June and July, with an average sea temperature of 28.3°C (82.9°F), are months with the warmest seawater in London.Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.
Daylight
In July, the average length of the day is 12h and 13min.On the first day of July, sunrise is at 06:26 and sunset at 18:41. On the last day of the month, sunrise is at 06:30 and sunset at 18:42 +14.
Sunshine
With an average of 7.9h of sunshine, July has the most sunshine of the year in London.UV index
The months with the highest UV index in London, Kiribati, are January through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 7 during July translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Warning! Sand and water reflections boost the intensity of UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for London in July?
What is the average humidity in July in London?
How much does it rain in London in July?
When is the sea warmest in London?
How warm is the water in July in London?
How many hours of daylight does London have in July?
What time are sunrise and sunset in July in London?
What month has the most sunshine in London?
How long on average sun shines in July in London?
When is the highest UV index in London?
What is the UV index reading in July in London?
Average temperature in July
London, Kiribati
- Average high temperature in July: 27.5°C
The warmest month (with the highest average high temperature) is June (27.6°C).
The month with the lowest average high temperature is January (26.3°C).
- Average low temperature in July: 26.2°C
The month with the highest average low temperature is May (26.5°C).
The coldest month (with the lowest average low temperature) is March (25.5°C).
Average pressure in July
London, Kiribati
- Average pressure in July: 1009.7mbar
The month with the highest atmospheric pressure is September (1010.5mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in July
London, Kiribati
- Average wind speed in July: 22.3km/h
The windiest month (with the highest average wind speed) is January (23.5km/h).
The calmest month (with the lowest average wind speed) is May (18.6km/h).
Average humidity in July
London, Kiribati
- Average humidity in July: 79%
The month with the highest relative humidity is March (84%).
The months with the lowest relative humidity are August, September, October and November (78%).
Average rainfall in July
London, Kiribati
- Average rainfall in July: 37mm
The wettest month (with the highest rainfall) is April (77mm).
The driest month (with the least rainfall) is October (9mm).
Average rainfall days in July
London, Kiribati
- Average rainfall days in July: 13 days
The month with the highest number of rainy days is April (22.1 days).
The month with the least rainy days is October (6.6 days).
Average sea temperature in July
London, Kiribati
- Average sea temperature in July: 28.3°C
The best months for swimming (with the highest average sea temperature) are June and July (28.3°C).
The coldest months (with the lowest average sea temperature) are January and February (26.7°C).
Average daylight in July /
Average sunshine in July
London, Kiribati
- Average daylight in July: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in July: 7h and 5min
The month with the most sunshine is July (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in July
London, Kiribati
- Average sunshine days in July: 13.7 days
The month with the most sunshine days is October (16.9 days).
The months with the least sunshine days are March and April (5.4 days).
Average UV index in July
London, Kiribati
- Average UV index in July: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in July
London, Kiribati
- Average cloud cover in July: 39
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in July
London, Kiribati
- Average visibility in July: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
