Last updated: June 24, 2025
In Castalia, United States, the average temperature in May rests at a mild 16°C (60°F). Expect a range with a minimum of 1°C (35°F) and a maximum of 29°C (84°F). This month also sees a precipitation amount of 124 mm (4.9 in), spread across approximately 14 days. Don't forget your umbrella, as the average humidity hovers around a sticky 81%!
In May in Castalia, the average temperature is 16°C (60°F). Maximums can reach 29°C (84°F), and minimums can drop to as low as 1°C (35°F). This diverse temperature range makes it an ideal destination for travelers seeking both warmth and cooler experiences.
In Castalia in May, the precipitation amount is 124 mm (4.9 in) over a span of 14 days.
In Castalia in May, humidity is 81%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you as you travel, making you acutely aware of the sweat on your skin and creating an atmosphere that might dampen your spirits but also invites you to seek out refreshing beverages and shady spots.
In Castalia in May, 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 Castalia.
UV Risk Categories
Weather in Castalia varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Castalia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 76 mm (3.0 inches) | 88% | moderate |
| February Weather | -1°C (31°F) | 83 mm (3.3 inches) | 87% | moderate |
| March Weather | 3°C (39°F) | 87 mm (3.4 inches) | 87% | high |
| April Weather | 9°C (48°F) | 106 mm (4.2 inches) | 87% | very high |
| May Weather | 16°C (60°F) | 124 mm (4.9 inches) | 81% | very high |
| June Weather | 21°C (71°F) | 108 mm (4.3 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 121 mm (4.8 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 82 mm (3.2 inches) | 78% | very high |
| September Weather | 20°C (69°F) | 70 mm (2.8 inches) | 78% | very high |
| October Weather | 14°C (58°F) | 99 mm (3.9 inches) | 82% | high |
| November Weather | 6°C (42°F) | 98 mm (3.9 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 72 mm (2.8 inches) | 86% | low |