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 snowfall in July
- Average snowfall 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
Weather in July
Temperature
The temperatures reach their highest averages in July, with highs of 17.8°C (64°F) and lows of 13.3°C (55.9°F).Humidity
The months with the highest humidity are January, July through October and December, with an average relative humidity of 84%.Rainfall
In July, in Llansteffan, United Kingdom, the rain falls for 16.1 days. Throughout July, 22mm (0.87") of precipitation is accumulated. Throughout the year, there are 165.1 rainfall days, and 303mm (11.93") of precipitation is accumulated.Snowfall
March through November are months without snowfall in Llansteffan.Sea temperature
In July, the average sea temperature in Llansteffan is 15.8°C (60.4°F).Note: The enjoyment of swimming decreases for most when the surface water temperature is 15.8°C (60.4°F). Breathing control becomes increasingly challenging as temperatures descend below 21°C (69.8°F).
Daylight
The average length of the day in July is 16h and 8min.On the first day of July, sunrise is at 5:03 am and sunset at 9:39 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 9:08 pm BST.
Sunshine
In July, the average sunshine is 7.9h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in July suggests the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What month is the hottest in Llansteffan?
What are the temperatures in Llansteffan in July?
What is the most humid month in Llansteffan?
What is the average humidity in July in Llansteffan?
How much does it rain in Llansteffan in July?
When it does not snow in Llansteffan?
How cold is the water in July in Llansteffan?
How many hours of daylight does Llansteffan have in July?
When is the sunrise / sunset in July in Llansteffan?
How long on average sun shines in July in Llansteffan?
What are the months with the highest UV index in Llansteffan?
What is the UV index intensity in July in Llansteffan?
Average temperature in July
Llansteffan, United Kingdom
- Average high temperature in July: 17.8°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The months with the lowest average high temperature are January and February (7.9°C).
- Average low temperature in July: 13.3°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (4.8°C).
Average pressure in July
Llansteffan, United Kingdom
- Average pressure in July: 1015.1mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in July
Llansteffan, United Kingdom
- Average wind speed in July: 16.3km/h
The windiest month (with the highest average wind speed) is December (25.2km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in July
Llansteffan, United Kingdom
- Average humidity in July: 84%
The months with the highest relative humidity are January, July, August, September, October and December (84%).
The month with the lowest relative humidity is April (81%).
Average rainfall in July
Llansteffan, United Kingdom
- Average rainfall in July: 22mm
The wettest month (with the highest rainfall) is December (35mm).
The driest months (with the least rainfall) are April and May (15mm).
Average rainfall days in July
Llansteffan, United Kingdom
- Average rainfall days in July: 16.1 days
The month with the highest number of rainy days is December (17.1 days).
The month with the least rainy days is April (11.5 days).
Average snowfall in July
Llansteffan, United Kingdom
- Average snowfall in July: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in July
Llansteffan, United Kingdom
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in July
Llansteffan, United Kingdom
- Average sea temperature in July: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (16.8°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in July /
Average sunshine in July
Llansteffan, 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 months with the most sunshine are April and May (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in July
Llansteffan, United Kingdom
- Average sunshine days in July: 9.2 days
The month with the most sunshine days is March (15.2 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in July
Llansteffan, United Kingdom
- Average UV index in July: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in July
Llansteffan, United Kingdom
- Average cloud cover in July: 50
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in July
Llansteffan, United Kingdom
- Average visibility in July: 9km
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (10km).
The months with the lowest visibility are May and July (9km).
Llansteffan, United Kingdom
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