Last updated: June 24, 2025
In May, the average temperature in Monterey, United States hovers around 15°C (60°F). You can expect temperatures to vary between a chilly -4°C (26°F) at the lowest and a warm 28°C (83°F) at the highest. Be prepared for 151 mm (5.9 in) of precipitation over approximately 17 days, with an average humidity level of 78%.
In May in Monterey, the average temperature is 15°C (60°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -4°C (26°F). Be prepared for a wide range of weather conditions during your travels!
In Monterey in May, the precipitation amount is 151 mm (5.9 in) over a span of 17 days.
In Monterey in May, humidity is 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.
In Monterey in May, 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 Monterey.
UV Risk Categories
Weather in Monterey varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Monterey, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -1°C (31°F) | 76 mm (3.0 inches) | 86% | moderate |
February Weather | 2°C (36°F) | 115 mm (4.5 inches) | 86% | high |
March Weather | 5°C (41°F) | 86 mm (3.4 inches) | 86% | very high |
April Weather | 10°C (50°F) | 126 mm (5.0 inches) | 84% | very high |
May Weather | 15°C (60°F) | 151 mm (5.9 inches) | 78% | extreme |
June Weather | 19°C (66°F) | 107 mm (4.2 inches) | 79% | extreme |
July Weather | 21°C (70°F) | 86 mm (3.4 inches) | 70% | extreme |
August Weather | 20°C (68°F) | 129 mm (5.1 inches) | 59% | very high |
September Weather | 17°C (64°F) | 117 mm (4.6 inches) | 68% | very high |
October Weather | 12°C (54°F) | 115 mm (4.5 inches) | 80% | high |
November Weather | 4°C (40°F) | 72 mm (2.8 inches) | 86% | moderate |
December Weather | 2°C (35°F) | 96 mm (3.8 inches) | 85% | moderate |