Monthly weather forecast and climate
Monterey, CA

The scenic view of the rugged mountainous coast of Big Sur in Monterey, California, under the clear blue sky
The scenic view of the rugged mountainous coast of Big Sur in Monterey, California, under the clear blue sky
In Monterey, in January, the average high-temperature is 58.3°F (14.6°C), and the average low-temperature is 43.7°F (6.5°C). The month with the most rainfall is January when the rain falls for 11 days and typically aggregates up to 4.4" (111.8mm) of precipitation.
Weather in January »
The average high-temperature, in February, is 59.5°F (15.3°C), while the average low-temperature is 44.8°F (7.1°C). In February, in Monterey, the rain falls for 10 days.
Weather in February »
The average high-temperature, in March, is 60.8°F (16°C), while the average low-temperature is 45.3°F (7.4°C). In Monterey, it is raining for 10 days, with typically 3.4" (85.9mm) of accumulated precipitation.
Weather in March »
In April, the average high-temperature is 62.1°F (16.7°C), and the average low-temperature is 46.2°F (7.9°C). In Monterey, during 6 rainfall days, 1.5" (37.8mm) of precipitation is typically accumulated.
Weather in April »
In May, the average high-temperature is 63°F (17.2°C), and the average low-temperature is 48°F (8.9°C). In Monterey, it is raining for 4 days, with typically 0.6" (14.2mm) of accumulated precipitation.
Weather in May »
In Monterey, in June, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 50.4°F (10.2°C). In Monterey, during 3 rainfall days, 0.2" (5.1mm) of precipitation is typically accumulated.
Weather in June »
In July, the average high-temperature is 66.4°F (19.1°C), and the average low-temperature is 52.2°F (11.2°C). July is the month with the least rainfall.
Weather in July »
In August, in Monterey, the average high-temperature is 67.6°F (19.8°C), and the average low-temperature is 53.1°F (11.7°C). In August, the rain falls for 2 days.
Weather in August »
The warmest month is September, with an average high-temperature of 69.6°F (20.9°C) and an average low-temperature of 52.9°F (11.6°C). In September, in Monterey, the rain falls for 2 days.
Weather in September »
In October, the average high-temperature is 68.2°F (20.1°C), and the average low-temperature is 50.7°F (10.4°C). In October, the rain falls for 4 days.
Weather in October »
The average high-temperature, in Monterey, is 62.8°F (17.1°C), while the average low-temperature is 47.1°F (8.4°C). In Monterey, it is raining for 7 days, with typically 2.3" (58.9mm) of accumulated precipitation.
Weather in November »
The coldest month is December, with an average high-temperature of 57.7°F (14.3°C) and an average low-temperature of 43.9°F (6.6°C). In Monterey, it is raining for 10 days, with typically 3.4" (86.6mm) of accumulated precipitation.
Weather in December »

How much does it rain in Monterey?

Throughout the year, in Monterey, there are 71 rainfall days, and 21.1" (536mm) of precipitation is accumulated.

What is the wettest month in Monterey?

The month with the most rainfall in Monterey is January when the rain falls for 11 days and typically aggregates up to 4.4" (111.8mm) of precipitation.

What month is the ocean coldest in Monterey?

With an average ocean temperature of 53.8°F (12.1°C), April is the month with the coldest seawater in Monterey. Swimming in 53.8°F (12.1°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

When are the longest days in Monterey?

The month with the longest days in Monterey, California, is June, with an average of 14.6h of daylight.

What is the driest month in Monterey?

July is the month with the least rainfall in Monterey, California. Rain falls for 2 days and accumulates 0.1" (1.3mm) of precipitation.

When is the ocean warmest in Monterey?

August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater. Swimming in 58.1°F (14.5°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the warmest month in Monterey?

The warmest month is September, with an average high-temperature of 69.6°F (20.9°C) and an average low-temperature of 52.9°F (11.6°C).

What is the coldest month in Monterey?

With an average high-temperature of 57.7°F (14.3°C) and an average low-temperature of 43.9°F (6.6°C), December is the coldest month in Monterey, California.

What is the month with the shortest days in Monterey?

The month with the shortest days in Monterey, California, is December, with an average of 9.7h of daylight.
Average temperature - Monterey, CA
Average rainfall - Monterey, CA
Average rainfall days - Monterey, CA

The month with the highest number of rainy days is January (11 days).
Months with the lowest number of rainy days are July, August and September (2 days).

Average sea temperature - Monterey, CA

Best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

Average daylight - Monterey, CA

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

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