Weather in July
Temperature
Londonderry's temperatures tend to reach their peak averages in July, with a high of 18.9°C (66°F) and a low of 11.6°C (52.9°F).Rainfall
In July, the rain falls for 13 days. Throughout July, 66mm (2.6") of precipitation is accumulated. In Londonderry, United Kingdom, during the entire year, the rain falls for 170 days and collects up to 853mm (33.58") of precipitation.Sea temperature
In Londonderry, in July, the average water temperature is 13.9°C (57°F).Note: One needs to be cautious in 13.9°C (57°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
In July, the average length of the day in Londonderry is 16h and 43min.On the first day of the month, sunrise is at 4:55 am and sunset at 10:11 pm. On the last day of July, sunrise is at 5:37 am and sunset at 9:33 pm BST.
Sunshine
In July, the average sunshine in Londonderry is 4.5h.UV index
The months with the highest UV index in Londonderry, United Kingdom, are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 6 in July transforms into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What part of the year is the hottest in Londonderry?
What is the usual temperature for Londonderry in July?
How many days does it rain in July in Londonderry?
What is the sea water temperature in July in Londonderry?
What is the average length of the day in July in Londonderry?
When is the sunrise / sunset in July in Londonderry?
How many hours of sunshine does Londonderry have in July?
What are the months with the highest UV index in Londonderry?
What is the UV index reading in July in Londonderry?
Average temperature in July
Londonderry, United Kingdom
- Average high temperature in July: 18.9°C
The warmest month (with the highest average high temperature) is July (18.9°C).
The months with the lowest average high temperature are January and December (8°C).
- Average low temperature in July: 11.6°C
The month with the highest average low temperature is July (11.6°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average rainfall in July
Londonderry, United Kingdom
- Average rainfall in July: 66.1mm
The wettest month (with the highest rainfall) is October (89mm).
The driest month (with the least rainfall) is May (51.2mm).
Average rainfall days in July
Londonderry, United Kingdom
- Average rainfall days in July: 13 days
The month with the highest number of rainy days is November (19 days).
The month with the least rainy days is June (11 days).
Average sea temperature in July
Londonderry, United Kingdom
- Average sea temperature in July: 13.9°C
The best month for swimming (with the highest average sea temperature) is August (14.7°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).
Average daylight in July /
Average sunshine in July
Londonderry, United Kingdom
- Average daylight in July: 16h and 4min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in July: 4h and 3min
The month with the most sunshine is May (Average sunshine: 6h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average UV index in July
Londonderry, United Kingdom
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).
Londonderry, United Kingdom
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