Weather in July
The heart of summer in Alderney ushers in July, carrying forward the extended daylight hours from June, though slightly reduced to 15.8 on average. However, what is noteworthy about July is the sea temperature reaching its highest annual level at a warm 15.7°C (60.3°F). The slight reduction of daylight from June doesn't hinder the summer vibrancy, with warm and brighter days still dominant. The height of the year, July retains the peak of sea temperatures for Alderney that truly beckon beachgoers and swimmers.
Note: Most people do not find swimming enjoyable in water of 15.7°C (60.3°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
On the first day of the month, sunrise is at 05:05 and sunset at 21:19. On the last day of July, sunrise is at 05:38 and sunset at 20:51 BST.
Sea temperature
In Alderney, Guernsey, the average seawater temperature in July is 15.7°C (60.3°F).Note: Most people do not find swimming enjoyable in water of 15.7°C (60.3°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in July is 15h and 49min.On the first day of the month, sunrise is at 05:05 and sunset at 21:19. On the last day of July, sunrise is at 05:38 and sunset at 20:51 BST.
Updated: Jun 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the sea water temperature in July?
In Alderney, in July, the average water temperature is 15.7°C (60.3°F). For swimming, a surface water temperature of 15.7°C (60.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
How many hours of daylight does Alderney have in July?
The average day length in July is 15h and 49min.
When is the sunrise / sunset in July?
In July, on the first day of the month, sunrise is at 05:05 and sunset at 21:19. On the last day of the month, sunrise is at 05:38 and sunset at 20:51 BST.
Average sea temperature in July
Alderney, Guernsey
- Average sea temperature in July: 15.7°C
The best month for swimming (with the highest average sea temperature) is September (17.4°C).
The coldest month (with the lowest average sea temperature) is March (9.3°C).
Average daylight in July
Alderney, Guernsey
- Average daylight in July: 15h and 5min
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 12min).
Alderney, Guernsey
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