June weather forecastSaint Helier, Jersey
June
Weather in June
June brings the onset of summer in Saint Helier, characterized by higher temperatures and extended daylight hours. Despite being the start of the hotter season, Saint Helier still retains its charm with manageable temperature levels. Compared to May, June sees a rise in rainfall, recorded at 36mm (1.42") this month. This month is also characterized by longer sunlight hours, inviting locals and tourists to explore the city's appealing landscapes. The city vibing with summer, people can often be witnessed engaging in various outdoor activities.Temperature
A minor adjustment in Saint Helier's average high-temperature is noted with the start of June, touching a still mild 15.8°C (60.4°F) from May's 13.3°C (55.9°F). June nighttime temperatures in Saint Helier hover close to the daytime peak with an average of 13.2°C (55.8°F).Humidity
The months with the highest humidity in Saint Helier are June and July, with an average relative humidity of 83%.Rainfall
In June, the rain falls for 13.1 days. Throughout June, 36mm (1.42") of precipitation is accumulated. Throughout the year, there are 189 rainfall days, and 538mm (21.18") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Saint Helier.Sea temperature
In June, the average sea temperature is 14°C (57.2°F).Note: It is risky to swim in 14°C (57.2°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.
Daylight
June has the longest days of the year in Saint Helier, with an average of 16h and 12min of daylight.On the first day of the month, sunrise is at 05:07 and sunset at 21:05. On the last day of June, in Saint Helier, sunrise is at 05:07 and sunset at 21:17 BST.
Sunshine
The average sunshine in June in Saint Helier, Jersey, is 9.2h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 5 in June translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Saint Helier, Jersey
- Average high temperature in June: 15.8°C
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (9°C).
- Average low temperature in June: 13.2°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).
Average pressure in June
Saint Helier, Jersey
- Average pressure in June: 1016.9mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in June
Saint Helier, Jersey
- Average wind speed in June: 21.2km/h
The windiest month (with the highest average wind speed) is December (34km/h).
The calmest month (with the lowest average wind speed) is July (20.4km/h).
Average humidity in June
Saint Helier, Jersey
- Average humidity in June: 83%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are November and December (78%).
Average rainfall in June
Saint Helier, Jersey
- Average rainfall in June: 36mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (25mm).
Average rainfall days in June
Saint Helier, Jersey
- Average rainfall days in June: 13.1 days
The month with the highest number of rainy days is November (21.2 days).
The months with the least rainy days are May and July (12.2 days).
Average snowfall in June
Saint Helier, Jersey
- Average snowfall in June: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in June
Saint Helier, Jersey
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in June
Saint Helier, Jersey
- Average sea temperature in June: 14°C
The best month for swimming (with the highest average sea temperature) is August (17°C).
The coldest months (with the lowest average sea temperature) are February and March (9°C).
Average daylight in June /
Average sunshine in June
Saint Helier, Jersey
- Average daylight in June: 16h and 12min
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 18min).
- Average sunshine in June: 9h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).
Average sunshine days in June
Saint Helier, Jersey
- Average sunshine days in June: 15.4 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is November (5.8 days).
Average UV index in June
Saint Helier, Jersey
- Average UV index in June: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in June
Saint Helier, Jersey
- Average cloud cover in June: 41
The months with the most cloud cover are January, November and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in June
Saint Helier, Jersey
- Average visibility in June: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
