Monthly weather forecast and climate
Santa Cruz, CA

Contents

A high aerial view of the bay area in Santa Cruz, California, view of the beach sand, numerous parked cars, scenic trees, and residential homes
A high aerial view of the bay area in Santa Cruz, California, view of the beach sand, numerous parked cars, scenic trees, and residential homes

Weather in January

The average high-temperature, is 60.6°F (15.9°C), while the average low-temperature is 40.8°F (4.9°C). The month with the most rainfall is January when the rain falls for 10.6 days and typically aggregates up to 6.4" (162.6mm) of precipitation.
Weather in January »

Weather in February

In February, the average high-temperature is 62.2°F (16.8°C), and the average low-temperature is 42.6°F (5.9°C). In Santa Cruz, in February, it is raining for 10.9 days, with typically 6.2" (158.5mm) of accumulated precipitation.
Weather in February »

Weather in March

The average high-temperature, is 64.4°F (18°C), while the average low-temperature is 44.1°F (6.7°C). In March, the rain falls for 10 days.
Weather in March »

Weather in April

In April, the average high-temperature is 67.5°F (19.7°C), and the average low-temperature is 45.5°F (7.5°C). In Santa Cruz, it is raining for 5.9 days, with typically 2" (50.5mm) of accumulated precipitation.
Weather in April »

Weather in May

In Santa Cruz, the average high-temperature is 70.2°F (21.2°C), and the average low-temperature is 48.6°F (9.2°C). In Santa Cruz, it is raining for 3.3 days, with typically 0.9" (21.6mm) of accumulated precipitation.
Weather in May »

Weather in June

The average high-temperature, in June, is 72.9°F (22.7°C), while the average low-temperature is 51.4°F (10.8°C). In Santa Cruz, it is raining for 1.3 days, with typically 0.2" (4.8mm) of accumulated precipitation.
Weather in June »

Weather in July

In July, the average high-temperature is 73.4°F (23°C), and the average low-temperature is 53.8°F (12.1°C). The month with the least rainfall is July when the rain falls for 0.3 days and typically collects 0" (0.3mm) of precipitation.
Weather in July »

Weather in August

In Santa Cruz, the average high-temperature is 74.3°F (23.5°C), and the average low-temperature is 54°F (12.2°C). In August, the rain falls for 0.7 days.
Weather in August »

Weather in September

September is the warmest month, with an average high-temperature of 74.5°F (23.6°C) and an average low-temperature of 52.5°F (11.4°C). In Santa Cruz, California, during September, the rain falls for 1.5 days and regularly aggregates up to 0.3" (6.9mm) of precipitation.
Weather in September »

Weather in October

In Santa Cruz, in October, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 48.9°F (9.4°C). In Santa Cruz, California, during October, the rain falls for 3.5 days and regularly aggregates up to 1.4" (36.6mm) of precipitation.
Weather in October »

Weather in November

The average high-temperature, in November, is 64.9°F (18.3°C), while the average low-temperature is 44.2°F (6.8°C). In November, in Santa Cruz, the rain falls for 7.5 days.
Weather in November »

Weather in December

The coldest month is December, with an average high-temperature of 60.1°F (15.6°C) and an average low-temperature of 40.8°F (4.9°C). In Santa Cruz, in December, it is raining for 10.7 days, with typically 5.7" (144.3mm) of accumulated precipitation.
Weather in December »

FAQ

How many days does it rain in Santa Cruz?

Throughout the year, there are 66.2 rainfall days, and 31.5" (801mm) of precipitation is accumulated.

What is the rainiest month in Santa Cruz?

The month with the most rainfall in Santa Cruz, California, is January when the rain falls for 10.6 days and typically aggregates up to 6.4" (162.6mm) of precipitation.

When is the lowest UV index in Santa Cruz?

Months with the lowest UV index are January and December, with an average UV index of 2.

When is the ocean coldest in Santa Cruz?

With an average ocean temperature of 54°F (12.2°C), April is the month with the coldest seawater in Santa Cruz, California. At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the most sunshine in Santa Cruz?

May through July, with an average of 11h of sunshine, are months with the most sunshine.

When are the longest days in Santa Cruz?

June has the longest days of the year in Santa Cruz, California, with an average of 14.7h of daylight.

When is the highest UV index in Santa Cruz?

June through August, with an average UV index of 9, are months with the highest UV index in Santa Cruz, California.

What is the driest month in Santa Cruz?

The month with the least rainfall is July when the rain falls for 0.3 days and typically collects 0" (0.3mm) of precipitation.

What is the warmest month in Santa Cruz?

With an average high-temperature of 74.5°F (23.6°C) and an average low-temperature of 52.5°F (11.4°C), September is the warmest month in Santa Cruz.

When is the ocean warmest in Santa Cruz?

The month with the warmest seawater is September, with an average ocean temperature of 58.1°F (14.5°C). Swimming in 58.1°F (14.5°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.

What is the coldest month in Santa Cruz?

With an average high-temperature of 60.1°F (15.6°C) and an average low-temperature of 40.8°F (4.9°C), December is the coldest month in Santa Cruz.

What is the month with the shortest days in Santa Cruz?

The month with the shortest days is December, with an average of 9.7h of daylight.

What is the month with the least sunshine in Santa Cruz?

December has the least sunshine of the year in Santa Cruz, California, with an average of 5h of sunshine.

Average temperature
Santa Cruz, CA

Average temperature - Santa Cruz, CA

The warmest month (with the highest average high temperature) is September (74.5°F).
The month with the lowest average high temperature is December (60°F).

The month with the highest average low temperature is August (53.9°F).
Coldest months (with the lowest average low temperature) are January and December (40.8°F).

Average rainfall
Santa Cruz, CA

Average rainfall - Santa Cruz, CA

The wettest month (with the highest rainfall) is January (6.4").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days
Santa Cruz, CA

Average rainfall days - Santa Cruz, CA

The month with the highest number of rainy days is February (10.9 days).
The month with the lowest number of rainy days is July (0.3 days).

Average sea temperature
Santa Cruz, CA

Average sea temperature - Santa Cruz, CA

The best month for swimming (with the highest average sea temperature) is September (58.2°F).
The coldest month (with the lowest average sea temperature) is April (53.9°F).

Average daylight / Average sunshine
Santa Cruz, CA

Average daylight / Average sunshine - Santa Cruz, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).

Months with most sunshine are May, June and July (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 5h).

Average UV index
Santa Cruz, CA

Average UV index - Santa Cruz, CA

Months with the highest UV index are June, July and August (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

°Celsius°Fahrenheit
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