More from St Helier
July is the hottest month in St Helier with an average temperature of 17°C (62°F) and the coldest is January at 6°C (42°F) with the most daily sunshine hours at 8 in July. The wettest month is November with an average of 66.8mm of rain. The best month to swim in the sea is in September when the average sea temperature is 18°C (63°F).
Average Temperature St Helier
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
Average High Low Temperature St Helier
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
Average Rainfall St Helier
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Average Daily Sunshine Hours St Helier
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
Average Sea Temperature St Helier
What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
More Annual Averages
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St Helier : Next 24-Hour Weather
Today - 6th July 2025
Sunrise 05:11
Sunset 21:15
20:00
17°C
(62°F)
21:00
17°C
(62°F)
22:00
17°C
(62°F)
23:00
17°C
(62°F)
Tomorrow - 7th July 2025
Sunrise 05:11
Sunset 21:15
0:00
17°C
(61°F)
1:00
17°C
(62°F)
2:00
17°C
(62°F)
3:00
17°C
(61°F)
4:00
16°C
(59°F)
5:00
15°C
(58°F)
6:00
16°C
(60°F)
7:00
16°C
(60°F)
8:00
15°C
(59°F)
9:00
15°C
(59°F)
10:00
15°C
(59°F)
11:00
16°C
(59°F)
12:00
16°C
(60°F)
13:00
16°C
(60°F)
14:00
16°C
(60°F)
15:00
16°C
(61°F)
16:00
17°C
(61°F)
17:00
17°C
(62°F)
18:00
17°C
(62°F)
19:00
17°C
(62°F)
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