Monterey, CA Climate & Monthly Averages
The climate of Monterey
Weather in Monterey is shaped by its oceanic climate - expect mild temperatures year-round with regular rainfall. September afternoons typically reach 67°F (20°C), while February highs hover near 58°F (15°C). Annual precipitation averages 21.8 inches (554 mm) over about 59 rainy days.
Climate quick facts
- Hottest month: September - highs near 67°F (20°C)
- Coldest month: February - highs near 58°F (15°C)
- Record high: 90°F (32°C) · Record low: 36°F (2°C) (2015–2024)
- Wettest month: January (10 rainy days) · Sunniest: June (12.5 h sun/day)
- Climate type: oceanic - mild temperatures year-round with regular rainfall
Temperatures through the year
The warmest stretch of the year centers on September. Highs average 67°F (20°C) and overnight lows stay near 56°F (14°C). The coolest month is February, with typical highs of 58°F (15°C) and lows around 47°F (8°C). Based on 2015–2024 weather data, temperatures have reached as high as 90°F (32°C) and dropped as low as 36°F (2°C).
Rain, sun and snow
January is usually the wettest month. It brings about 4.7 inches (120 mm) of rain over 10 days, while August is the driest. June brings the most sunshine, averaging 12.5 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 48° | 10 | 4.7 in | 7.4 h/day | 79% |
| February | 58° | 47° | 8 | 3.3 in | 9.1 h/day | 75% |
| March | 58° | 48° | 12 | 4.0 in | 9.6 h/day | 79% |
| April | 58° | 49° | 5 | 1.3 in | 11.0 h/day | 81% |
| May | 59° | 51° | 4 | 0.8 in | 11.9 h/day | 83% |
| June | 62° | 53° | 1 | 0.1 in | 12.5 h/day | 84% |
| July | 63° | 55° | 0 | 0.1 in | 12.0 h/day | 87% |
| August | 65° | 56° | 0 | 0.0 in | 11.4 h/day | 87% |
| September | 67° | 56° | 1 | 0.2 in | 11.0 h/day | 83% |
| October | 67° | 54° | 3 | 0.8 in | 9.9 h/day | 77% |
| November | 62° | 50° | 6 | 2.3 in | 8.9 h/day | 75% |
| December | 58° | 48° | 9 | 4.2 in | 7.4 h/day | 77% |
Monterey month by month
Monterey weather in January
January brings highs around 58°F (15°C), lows near 48°F (9°C), about 10 wet days - typically the wettest month of the year in Monterey.
Monterey weather in February
February brings highs around 58°F (15°C), lows near 47°F (8°C), about 8 wet days - typically the coldest month of the year in Monterey.
Monterey weather in March
March brings highs around 58°F (14°C), lows near 48°F (9°C), about 12 wet days.
Monterey weather in April
April brings highs around 58°F (15°C), lows near 49°F (10°C), about 5 wet days.
Monterey weather in May
May brings highs around 59°F (15°C), lows near 51°F (10°C), about 4 wet days.
Monterey weather in June
June brings highs around 62°F (17°C), lows near 53°F (12°C), about 1 wet days - typically the sunniest month of the year in Monterey.
Monterey weather in July
July brings highs around 63°F (17°C), lows near 55°F (13°C), about 0 wet days.
Monterey weather in August
August brings highs around 65°F (18°C), lows near 56°F (14°C), about 0 wet days - typically the driest month of the year in Monterey.
Monterey weather in September
September brings highs around 67°F (20°C), lows near 56°F (14°C), about 1 wet days - typically the hottest month of the year in Monterey.
Monterey weather in October
October brings highs around 67°F (19°C), lows near 54°F (12°C), about 3 wet days.
Monterey weather in November
November brings highs around 62°F (17°C), lows near 50°F (10°C), about 6 wet days.
Monterey weather in December
December brings highs around 58°F (15°C), lows near 48°F (9°C), about 9 wet days.
Seasons in Monterey
Spring (March through May)
Spring in Monterey is crisp but comfortable, with daytime highs averaging 59°F (15°C) and nights around 49°F (10°C); expect showers on roughly 20 days across the season.
Summer (June through August)
Summer in Monterey is crisp but comfortable, with daytime highs averaging 64°F (18°C) and nights around 55°F (13°C); precipitation is infrequent.
Fall (September through November)
Fall in Monterey is crisp but comfortable, with daytime highs averaging 65°F (18°C) and nights around 54°F (12°C); rain falls on about 10 days over the three months.
Winter (December through February)
Winter in Monterey is mild, with daytime highs averaging 58°F (15°C) and nights around 47°F (9°C); expect showers on roughly 28 days across the season.
Climate questions, answered
What is the average temperature in Monterey?
Is Monterey hot in summer?
Is Monterey cold in winter?
How many rainy days does Monterey get in a year?
Best time to visit Monterey
The best time to visit Monterey is generally May to October, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 64°F (18°C).
Pack for Monterey with rain gear if you travel around January. Evenings can feel noticeably cooler than afternoons - September nights average 56°F (14°C).
Monterey temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.