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June Weather in Grimsby, Canada

Last updated: June 18, 2025

In Grimsby, Canada, the average temperature in June is a pleasant 18°C (65°F). Expect a minimum of 8°C (47°F) and a maximum of 27°C (81°F), making for comfortable days. However, be prepared for some rain, with an average precipitation of 78 mm (3.1 in) spread over 10 days and a notable average humidity of 79%.

June Temperature in Grimsby

In June in Grimsby, the average temperature is 18°C (65°F). The maximum can reach 27°C (81°F) and the minimum can be as low as 8°C (47°F). This mild climate makes Grimsby an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates June temperature patterns in Grimsby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grimsby, June typically has an average temperature of 18°C (65°F), with highs reaching up to 27°C (81°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec282934435365737266554234
Data source: Temperature data for Grimsby 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 Grimsby

In Grimsby in June, the precipitation amount is 78 mm (3.1 in) over the course of 10 days.

June Precipitation Trends in Grimsby

The chart displays monthly precipitation patterns in Grimsby, 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 Grimsby, June typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec75836911598788876651158384
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Grimsby

In Grimsby in June, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

June Average Humidity in Grimsby

This chart illustrates the average monthly humidity levels in Grimsby, 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 Grimsby is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Grimsby

In Grimsby in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Grimsby.

Maximum UV Index Levels in Grimsby for June

The chart shows the monthly maximum UV Index (UVI) for Grimsby 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 Grimsby typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Grimsby 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 Grimsby Compares to Other Months

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

This table compares monthly weather conditions in Grimsby, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)75 mm (3.0 inches)91%low
February Weather-2°C (29°F)83 mm (3.3 inches)91%moderate
March Weather1°C (35°F)69 mm (2.7 inches)88%moderate
April Weather6°C (43°F)115 mm (4.5 inches)88%very high
May Weather12°C (53°F)98 mm (3.9 inches)82%very high
June Weather18°C (65°F)78 mm (3.1 inches)79%very high
July Weather23°C (73°F)88 mm (3.5 inches)77%very high
August Weather22°C (72°F)76 mm (3.0 inches)72%very high
September Weather19°C (66°F)65 mm (2.6 inches)76%high
October Weather13°C (56°F)115 mm (4.5 inches)83%moderate
November Weather5°C (42°F)83 mm (3.3 inches)88%moderate
December Weather1°C (35°F)84 mm (3.3 inches)87%low

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