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Weather in St Helier for July 2026

Your guide to St Helier weather in July - trends and predictions

    Temperatures

  • So far, July 2026 in St Helier shows a warmer trend than usual by 2.4 °C.

  • The forecast for the next days in St Helier predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in St Helier at the beginning of July is 17.9 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20.1 °C by the end of July.

    • Rain 🌧️

  • The climate of St Helier in July is notably wet, with an average of 11 rainy days, and a total of 65.3 mm of precipitation.

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/16°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
81 %
Avg humidity

St Helier Weather July

Move between months or click on a day
June
August
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
17°
2
Patchy rain possible
17°
3
Sunny
18°
4
Patchy rain possible
17°
5
Patchy rain possible
17°
6
Patchy rain possible
19°
7
Patchy rain possible
20°
8
Moderate rain at times
20°
9
Patchy rain possible
20°
10
Cloudy
21°
11
Sunny
21°
12
Patchy rain possible
20°
13
Patchy rain possible
19°
14
Moderate or heavy rain shower
19°
15
Patchy rain possible
19°
16
Patchy rain possible
19°
17
Partly cloudy
19°
18
Patchy rain possible
20°
19
Patchy rain possible
20°
20
Light rain shower
19°
21
Sunny
19°
22
Sunny
19°
23
Sunny
22°
24
Sunny
21°
25
Sunny
19°
26
Patchy rain possible
18°
27
Sunny
18°
28
Sunny
19°
29
Sunny
21°
30
Sunny
24°
31
Sunny
22°

Temperatures trend during July in St Helier

See the weather trend as well as the moving average line

July weather in St Helier day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
1 Jul. Patchy rain possible
Patchy rain possible
 17° /15° 0.9 mm 5
2 Jul. Patchy rain possible
Patchy rain possible
 17° /15° 0.4 mm 5
3 Jul. Sunny
Sunny
 18° /15° 0.2 mm 6
4 Jul. Patchy rain possible
Patchy rain possible
 17° /14° 1.3 mm 6
5 Jul. Patchy rain possible
Patchy rain possible
 17° /15° 0.4 mm 6
6 Jul. Patchy rain possible
Patchy rain possible
 19° /15° 2.6 mm 6
7 Jul. Patchy rain possible
Patchy rain possible
 20° /15° 0.5 mm 6
8 Jul. Moderate rain at times
Moderate rain at times
 20° /15° 2.8 mm 6
9 Jul. Patchy rain possible
Patchy rain possible
 20° /16° 3.1 mm 5
10 Jul. Cloudy
Cloudy
 21° /16° 0 mm 6
11 Jul. Sunny
Sunny
 21° /16° 6.5 mm 6
12 Jul. Patchy rain possible
Patchy rain possible
 20° /16° 1.4 mm 6
13 Jul. Patchy rain possible
Patchy rain possible
 19° /16° 0.8 mm 6
14 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /16° 3 mm 6
15 Jul. Patchy rain possible
Patchy rain possible
 19° /16° 6.9 mm 5
16 Jul. Patchy rain possible
Patchy rain possible
 19° /16° 0.9 mm 5
17 Jul. Partly cloudy
Partly cloudy
 19° /16° 0.3 mm 6
18 Jul. Patchy rain possible
Patchy rain possible
 20° /16° 0 mm 6
19 Jul. Patchy rain possible
Patchy rain possible
 20° /16° 1.1 mm 6
20 Jul. Light rain shower
Light rain shower
 19° /15° 3.5 mm 6
21 Jul. Sunny
Sunny
 19° /16° 0 mm 7.1
22 Jul. Sunny
Sunny
 19° /18° 0 mm 7.2
23 Jul. Sunny
Sunny
 22° /17° 0 mm 7.1
24 Jul. Sunny
Sunny
 21° /18° 0 mm 6.9
25 Jul. Sunny
Sunny
 19° /17° 0 mm 6.5
26 Jul. Patchy rain possible
Patchy rain possible
 18° /17° 0.5 mm 5
27 Jul. Sunny
Sunny
 18° /16° 0 mm 5
28 Jul. Sunny
Sunny
 19° /17° 0 mm 5
29 Jul. Sunny
Sunny
 21° /18° 0 mm 6
30 Jul. Sunny
Sunny
 24° /19° 0 mm 6
31 Jul. Sunny
Sunny
 22° /18° 0 mm 5
Next
Important Notice
Our weather forecast for St Helier in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St Helier forecast closer to your planned date for the most up-to-date weather information.
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St Helier in July - FAQ

What are the expected maximum and minimum temperatures in St Helier during July?
During July, expect a variety of temperatures with highs around 18° and lows near 16°, suitable for diverse activities and preferences.

How much rainfall should be expected in St Helier during July?
Moderate rainfall is anticipated in St Helier during July, with a total of 65.3 mm spread over approximately 11 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in St Helier during July?
The average wind speed in St Helier during July is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

July rainfall patterns in St Helier

Explore the daily rainfall trends and prepare for St Heliers July weather 💧
Typically, St Helier has 11 rainy days in July with a total of 65.3 mm of rainfall.

UV exposure in St Helier during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Location coordinates Where is St Helier?

Get accurate weather forecasts for St Helier, located at latitude 49.188 and longitude -2.105. Stay updated with localized weather information tailored for St Helier.

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