Monthly weather forecast and climate
Grover Beach, CA

Weather in January

January, the same as December, is another comfortable winter month in Grover Beach, California, with temperature in the range of an average high of 63°F (17.2°C) and an average low of 47.5°F (8.6°C). In January, the average high-temperature is essentially the same as in December - a still comfortable 63°F (17.2°C). Weather in January »

Weather in February

February, the last month of the winter, in Grover Beach, is another comfortable month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 46°F (7.8°C). In Grover Beach, the average high-temperature is almost the same as in January - a still enjoyable 62.2°F (16.8°C). Weather in February »

Weather in March

March, the first month of the spring, in Grover Beach, is still a comfortable month, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 64.9°F (18.3°C). In Grover Beach, the average high-temperature in March is almost the same as in February - a still enjoyable 64.9°F (18.3°C). Weather in March »

Weather in April

April, the same as March, is another comfortable spring month in Grover Beach, California, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 48.6°F (9.2°C). In April, the average high-temperature is relatively the same as in March - a still enjoyable 67.6°F (19.8°C). Weather in April »

Weather in May

May, the last month of the spring, in Grover Beach, is an agreeable month, with average temperature varying between 70.5°F (21.4°C) and 51.4°F (10.8°C). In May, the average high-temperature is practically the same as in April - a pleasant 70.5°F (21.4°C). Weather in May »

Weather in June

June, the first month of the summer, in Grover Beach, is a moderately hot month, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 75.4°F (24.1°C). In June, the average high-temperature is practically the same as in May - a warm 75.4°F (24.1°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Grover Beach, California, with average temperature varying between 58.5°F (14.7°C) and 78.6°F (25.9°C). In Grover Beach, the average high-temperature in July is practically the same as in June - a still warm 78.6°F (25.9°C). Weather in July »

Weather in August

August, the last month of the summer, in Grover Beach, is another warm month, with average temperature fluctuating between 78.8°F (26°C) and 59.2°F (15.1°C). In Grover Beach, California, the average high-temperature in August is relatively the same as in July - a still warm 78.8°F (26°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Grover Beach, California, with average temperature varying between 79.5°F (26.4°C) and 59.9°F (15.5°C). With an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 59.9°F (15.5°C), September is the warmest month. Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Grover Beach, California, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 56.7°F (13.7°C). In October, the average high-temperature is essentially the same as in September - a still warm 74.3°F (23.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Grover Beach, California, with average temperature varying between 51.4°F (10.8°C) and 67.8°F (19.9°C). In Grover Beach, the average high-temperature marginally drops, from a warm 74.3°F (23.5°C) in October, to an enjoyable 67.8°F (19.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also an enjoyable month in Grover Beach, California, with average temperature ranging between min 46.8°F (8.2°C) and max 61.2°F (16.2°C). The coldest month is December, with an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 46.8°F (8.2°C). Weather in December »
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FAQ

How much does it rain in Grover Beach?

Throughout the year, there are 47.6 rainfall days, and 6.93" (176mm) of precipitation is accumulated.

What is the month with the lowest UV index in Grover Beach?

Months with the lowest UV index in Grover Beach, California, are January through March, November and December, with an average maximum UV index of 4.

What is the month with the least sunshine in Grover Beach?

Months with the least sunshine in Grover Beach, California, are February and December, with an average of 6.5h of sunshine.

What is the most humid month in Grover Beach?

The most humid month in Grover Beach is March, with an average relative humidity of 68%.

What is the rainiest month in Grover Beach?

The month with the most rainfall in Grover Beach, California, is March when the rain falls for 8.4 days and typically aggregates up to 1.61" (41mm) of precipitation.

What is the driest month in Grover Beach?

Months with the least rainfall are June and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.

When are the longest days in Grover Beach?

The month with the longest days in Grover Beach is June, with an average of 14.5h of daylight.

What are the months with the most sunshine in Grover Beach?

June through August, with an average of 12h of sunshine, are months with the most sunshine.

When is the highest UV index in Grover Beach?

Months with the highest UV index in Grover Beach are June and August, with an average maximum UV index of 6.

What is the warmest month in Grover Beach?

September is the warmest month in Grover Beach, California, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 59.9°F (15.5°C).

What is the least humid month in Grover Beach?

The least humid month is October, with an average relative humidity of 58%.

What is the coldest month in Grover Beach?

The coldest month in Grover Beach, California, is December, with an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 46.8°F (8.2°C).

What is the month with the shortest days in Grover Beach?

The month with the shortest days in Grover Beach, California, is December, with an average of 9.8h of daylight.

Average temperature
Grover Beach, CA

Average temperature - Grover Beach, CA

The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure
Grover Beach, CA

Average pressure - Grover Beach, CA

The month with the highest atmospheric pressure is January (30.12").
Months with the lowest atmospheric pressure are June, August and September (29.91").

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Average wind speed
Grover Beach, CA

Average wind speed - Grover Beach, CA

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average rainfall
Grover Beach, CA

Average rainfall - Grover Beach, CA

The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days
Grover Beach, CA

Average rainfall days - Grover Beach, CA

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).

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Average daylight / Average sunshine
Grover Beach, CA

Average daylight / Average sunshine - Grover Beach, CA

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

Months with the most sunshine are June, July and August (Average sunshine: 12h).
Months with the least sunshine are February and December (Average sunshine: 6.5).

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Average sunshine days
Grover Beach, CA

Average sunshine days - Grover Beach, CA

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).

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Average UV index
Grover Beach, CA

Average UV index - Grover Beach, CA

Months with the highest UV index are June and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average visibility
Grover Beach, CA

Average visibility - Grover Beach, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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