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June Weather in St Martin, Guernsey

Last updated: August 23, 2025

In June, the average temperature in St Martin, Guernsey hovers around 14°C (58°F), with a comfortable range between 11°C (53°F) and 19°C (67°F). Expect 59 mm (2.3 in) of precipitation spread over about 8 days, contributing to an average humidity level of 77% that keeps the air pleasantly refreshing.

June Temperature in St Martin

In June in St Martin, the average temperature is 14°C (58°F). The maximum can reach 19°C (67°F), while the minimum can drop as low as 11°C (53°F). It's a perfect time to explore St Martin and enjoy mild weather ideal for outdoor activities.

June Weather in St Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in St Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In St Martin, June typically has an average temperature of 14°C (58°F), with highs reaching up to 19°C (67°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec484848505458616362595451
Data source: Temperature data for St Martin 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 St Martin

In St Martin in June, the total precipitation amount is 59 mm (2.3 in) spread over 8 days.

June Precipitation Trends in St Martin

The chart displays monthly precipitation patterns in St Martin, 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 St Martin, June typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec948673345559375063144126163
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in St Martin

In St Martin in June, humidity is 77%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making traveling feel sticky and heavy, yet still manageable as you explore the sights.

June Average Humidity in St Martin

This chart illustrates the average monthly humidity levels in St Martin, 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 St Martin is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%85%84%81%77%63%71%76%89%90%90%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in St Martin

In St Martin in June, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in St Martin.

Maximum UV Index Levels in St Martin for June

The chart shows the monthly maximum UV Index (UVI) for St Martin 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 St Martin typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234679876421
Data source: St Martin 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 St Martin Compares to Other Months

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

This table compares monthly weather conditions in St Martin, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)94 mm (3.7 inches)89%low
February Weather9°C (48°F)86 mm (3.4 inches)88%moderate
March Weather9°C (49°F)73 mm (2.9 inches)85%moderate
April Weather10°C (50°F)34 mm (1.3 inches)84%high
May Weather12°C (54°F)55 mm (2.2 inches)81%high
June Weather14°C (58°F)59 mm (2.3 inches)77%very high
July Weather16°C (62°F)37 mm (1.5 inches)63%very high
August Weather17°C (63°F)50 mm (2.0 inches)71%high
September Weather17°C (62°F)63 mm (2.5 inches)76%high
October Weather15°C (59°F)144 mm (5.7 inches)89%moderate
November Weather12°C (54°F)126 mm (5.0 inches)90%low
December Weather11°C (51°F)163 mm (6.4 inches)90%low

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