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March Weather in Monterey, United States

Last updated: June 24, 2025

In March, the average temperature in Monterey, United States hovers around 11°C (51°F). Temperatures can vary significantly, with a minimum of -10°C (15°F) and a maximum of 28°C (82°F). Expect about 161 mm (6.3 in) of precipitation spread over 15 days, contributing to an average humidity level of 86%.

March Temperature in Monterey

In March in Monterey, the average temperature is 11°C (51°F). The maximum can reach 28°C (82°F), while the minimum can be as low as -10°C (15°F). This wide temperature range makes Monterey an intriguing destination for travelers seeking both mild days and cool nights.

March Weather in Monterey: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Monterey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monterey, March typically has an average temperature of 11°C (51°F), with highs reaching up to 28°C (82°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec394551586874787672624744
Data source: Temperature data for Monterey 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.

March Precipitation in Monterey

In Monterey in March, the precipitation amount is 161 mm (6.3 in) spread over 15 days.

March Precipitation Trends in Monterey

The chart displays monthly precipitation patterns in Monterey, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Monterey, March typically receives around 161 mm (6.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec10819316115313813313313011913278150
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Monterey

In Monterey in March humidity is 86%. With an average temperature of 11°C (51°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities less enjoyable and travel a bit more strenuous as the air feels heavy and clammy.

March Average Humidity in Monterey

This chart illustrates the average monthly humidity levels in Monterey, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Monterey is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Monterey

In Monterey in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Monterey.

Maximum UV Index Levels in Monterey for March

The chart shows the monthly maximum UV Index (UVI) for Monterey in March, 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 March, the maximum UV index in Monterey typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
Data source: Monterey March 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 March Weather in Monterey Compares to Other Months

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

This table compares monthly weather conditions in Monterey, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)108 mm (4.3 inches)87%moderate
February Weather7°C (45°F)192 mm (7.6 inches)86%high
March Weather11°C (51°F)161 mm (6.3 inches)86%high
April Weather14°C (58°F)153 mm (6.0 inches)82%very high
May Weather20°C (68°F)138 mm (5.4 inches)82%extreme
June Weather23°C (74°F)133 mm (5.2 inches)83%extreme
July Weather25°C (78°F)133 mm (5.2 inches)80%extreme
August Weather24°C (76°F)130 mm (5.1 inches)74%very high
September Weather22°C (72°F)119 mm (4.7 inches)71%very high
October Weather17°C (62°F)132 mm (5.2 inches)78%high
November Weather9°C (48°F)78 mm (3.1 inches)88%moderate
December Weather7°C (44°F)150 mm (5.9 inches)88%moderate

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