Last updated: June 24, 2025
In June, the average temperature in St Marys, United States hovers around 26°C (80°F), offering a comfortable climate. However, be prepared for fluctuations, as temperatures can dip to a minimum of 19°C (66°F) or soar to a maximum of 34°C (94°F). Expect about 145 mm (5.7 in) of precipitation over 19 days, contributing to an average humidity level of 74%. Whether you're exploring the outdoors or enjoying indoor activities, the weather provides a mix of warmth and moisture for a unique experience.
In June in St Marys, the average temperature is 26°C (80°F). The maximum can reach 34°C (94°F), and the minimum can be as low as 19°C (66°F). Be prepared for warm and pleasant weather, ideal for exploring the sights and enjoying outdoor activities.
In St Marys in June, the precipitation amount is 145 mm (5.7 in) over a period of 19 days.
In St Marys in June humidity is 74%. With an average temperature of 26°C (80°F), this humidity feels like a warm, thick blanket wrapping around you, making any outdoor activities feel more strenuous and sweat-inducing, so staying hydrated and taking frequent breaks in the shade is essential for enjoyable traveling.
In St Marys 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 St Marys.
UV Risk Categories
Weather in St Marys varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in St Marys, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 13°C (56°F) | 51 mm (2.0 inches) | 84% | moderate |
| February Weather | 16°C (61°F) | 71 mm (2.8 inches) | 79% | high |
| March Weather | 18°C (64°F) | 44 mm (1.7 inches) | 78% | very high |
| April Weather | 21°C (69°F) | 66 mm (2.6 inches) | 72% | very high |
| May Weather | 24°C (75°F) | 80 mm (3.2 inches) | 72% | extreme |
| June Weather | 26°C (80°F) | 145 mm (5.7 inches) | 74% | extreme |
| July Weather | 27°C (81°F) | 170 mm (6.7 inches) | 82% | extreme |
| August Weather | 27°C (82°F) | 172 mm (6.8 inches) | 82% | extreme |
| September Weather | 26°C (80°F) | 155 mm (6.1 inches) | 83% | very high |
| October Weather | 24°C (75°F) | 78 mm (3.1 inches) | 79% | very high |
| November Weather | 18°C (64°F) | 80 mm (3.1 inches) | 82% | high |
| December Weather | 15°C (59°F) | 86 mm (3.4 inches) | 85% | moderate |