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June Weather in Guernsey, United States

Last updated: June 24, 2025

The average temperature in Guernsey, United States during June is a pleasant 21°C (70°F). However, prepare for temperature fluctuations, as it can dip to a chilly 5°C (42°F) or soar to a hot 39°C (103°F). Expect about 37 mm (1.5 in) of precipitation spread over 7 days, paired with an average humidity of 84%, creating a humid atmosphere throughout the month.

June Temperature in Guernsey

In June in Guernsey, the average temperature is 21°C (70°F), making it a pleasant time to visit. While the maximum can reach 39°C (103°F), be prepared for cooler nights with temperatures dropping to as low as 5°C (42°F). Overall, this climate offers a diverse experience for travelers, allowing for both warm days and refreshing evenings.

June Weather in Guernsey: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Guernsey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guernsey, June typically has an average temperature of 21°C (70°F), with highs reaching up to 39°C (103°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec312839465570767465474033
Data source: Temperature data for Guernsey generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Guernsey

In Guernsey in June, the precipitation amount is 37 mm (1.5 in) during a span of 7 days.

June Precipitation Trends in Guernsey

The chart displays monthly precipitation patterns in Guernsey, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Guernsey, June typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec122350458537271624331717
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Guernsey

In Guernsey in June, humidity is 84%. With an average temperature of 21°C (70°F), this humidity feels like thick, warm air wrapping around you, making outdoor activities quite uncomfortable and necessitating frequent hydration breaks for a more enjoyable travel experience.

June Average Humidity in Guernsey

This chart illustrates the average monthly humidity levels in Guernsey, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Guernsey is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%78%64%66%74%84%85%85%76%71%73%75%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Guernsey

In Guernsey in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Guernsey.

Maximum UV Index Levels in Guernsey for June

The chart shows the monthly maximum UV Index (UVI) for Guernsey in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Guernsey typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111108643
Data source: Guernsey June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How June Weather in Guernsey Compares to Other Months

Weather in Guernsey varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Guernsey, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Guernsey, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)12 mm (0.5 inches)73%moderate
February Weather-2°C (29°F)23 mm (0.9 inches)78%moderate
March Weather4°C (39°F)50 mm (2.0 inches)64%high
April Weather8°C (46°F)45 mm (1.8 inches)66%very high
May Weather13°C (55°F)85 mm (3.3 inches)74%very high
June Weather21°C (70°F)37 mm (1.5 inches)84%extreme
July Weather25°C (77°F)27 mm (1.1 inches)85%extreme
August Weather23°C (74°F)16 mm (0.6 inches)85%very high
September Weather19°C (66°F)24 mm (0.9 inches)76%very high
October Weather8°C (47°F)33 mm (1.3 inches)71%high
November Weather4°C (40°F)17 mm (0.7 inches)73%moderate
December Weather1°C (33°F)17 mm (0.7 inches)75%moderate

Compare Guernsey's Climate with Cities Worldwide