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June Weather in Saint Marys, United States

Last updated: June 24, 2025

In June, the average temperature in Saint Marys, United States is a pleasant 19°C (66°F). Expect a range between a cool 4°C (39°F) and a warm 32°C (90°F). During this time, be prepared for 123 mm (4.9 in) of precipitation spread over 15 days, and enjoy the moderate average humidity of 79%.

June Temperature in Saint Marys

In June in Saint Marys, the average temperature is 19°C (66°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop to as low as 4°C (39°F). This varied climate makes Saint Marys an ideal destination for travelers looking to experience a range of weather conditions.

June Weather in Saint Marys: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Saint Marys, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Marys, June typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (90°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec252936465765706963523831
Data source: Temperature data for Saint Marys 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 Saint Marys

In Saint Marys in June, the total precipitation amount is 123 mm (4.9 in) over a span of 15 days.

June Precipitation Trends in Saint Marys

The chart displays monthly precipitation patterns in Saint Marys, 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 Saint Marys, June typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec9010794124144123117941111259498
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Saint Marys

In Saint Marys in June humidity is 79%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making it feel much warmer than the actual temperature and creating a heavy, sticky atmosphere that can be a bit uncomfortable for traveling.

June Average Humidity in Saint Marys

This chart illustrates the average monthly humidity levels in Saint Marys, 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 Saint Marys is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Saint Marys

In Saint Marys 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 Saint Marys.

Maximum UV Index Levels in Saint Marys for June

The chart shows the monthly maximum UV Index (UVI) for Saint Marys 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 Saint Marys typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Saint Marys 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 Saint Marys Compares to Other Months

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

This table compares monthly weather conditions in Saint Marys, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)90 mm (3.5 inches)89%moderate
February Weather-2°C (29°F)107 mm (4.2 inches)90%moderate
March Weather2°C (36°F)94 mm (3.7 inches)89%high
April Weather8°C (46°F)124 mm (4.9 inches)88%very high
May Weather14°C (58°F)144 mm (5.7 inches)80%very high
June Weather19°C (66°F)123 mm (4.9 inches)79%very high
July Weather21°C (71°F)117 mm (4.6 inches)74%very high
August Weather20°C (69°F)94 mm (3.7 inches)64%very high
September Weather17°C (63°F)111 mm (4.4 inches)67%very high
October Weather11°C (53°F)125 mm (4.9 inches)81%high
November Weather3°C (38°F)94 mm (3.7 inches)89%moderate
December Weather0°C (32°F)98 mm (3.9 inches)88%low

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