July weather forecastDuval, Guernsey
July
Weather in July
July, being the warmest month of the year, witnesses the maximum temperature climb to 16.9°C (62.4°F). Summer is in full swing, with longer days allowing residents to indulge in various outdoor activities. The beach scene becomes lively, with the sea displaying a placid demeanor due to the absence of windy conditions. The month's relatively high humidity may cause slight discomfort for some, but it is generally offset by the pleasing sea breeze. There are no signs of monotonous drizzle, making it a rather sunny month.Temperature
Entering July in Duval, Guernsey, the average high-temperature is recorded at a still refreshing 16.9°C (62.4°F), exhibiting a minimal shift from June's 15.2°C (59.4°F). A consistent average low-temperature of 15.3°C (59.5°F), with a minor variance from the daytime highs, is noted during the nights of July.Humidity
The months with the highest humidity in Duval are June and July, with an average relative humidity of 84%.Rainfall
July is the month with the least rainfall in Duval. Rain falls for 12.8 days and accumulates 26mm (1.02") of precipitation.Snowfall
February through December are months without snowfall.Daylight
In July, the average length of the day in Duval is 15h and 47min.On the first day of the month, sunrise is at 05:07 and sunset at 21:19. On the last day of July, sunrise is at 05:40 and sunset at 20:51 BST.
Sunshine
With an average of 9.7h of sunshine, July has the most sunshine of the year in Duval.UV index
The months with the highest UV index are July through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during July translates into the following guidance:
Undertake precautions - Obligation exists to protect against skin and eye damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Duval, Guernsey
- Average high temperature in July: 16.9°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).
- Average low temperature in July: 15.3°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).
Average pressure in July
Duval, Guernsey
- Average pressure in July: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in July
Duval, Guernsey
- Average wind speed in July: 21.9km/h
The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity in July
Duval, Guernsey
- Average humidity in July: 84%
The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall in July
Duval, Guernsey
- Average rainfall in July: 26mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days in July
Duval, Guernsey
- Average rainfall days in July: 12.8 days
The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).
Average snowfall in July
Duval, Guernsey
- Average snowfall in July: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in July
Duval, Guernsey
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in July /
Average sunshine in July
Duval, Guernsey
- Average daylight in July: 15h and 48min
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 July: 9h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).
Average sunshine days in July
Duval, Guernsey
- Average sunshine days in July: 15.4 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).
Average UV index in July
Duval, Guernsey
- Average UV index in July: 5
The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in July
Duval, Guernsey
- Average cloud cover in July: 37
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in July
Duval, Guernsey
- 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).





