Climate and monthly weather forecast
Grover Beach, CA

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Weather in January

January, like December, in Grover Beach, California, is another refreshing winter month, with an average temperature fluctuating between 63°F (17.2°C) and 47.5°F (8.6°C). January's arrival registers an average high-temperature of a still enjoyable 63°F (17.2°C), closely aligning with the temperature of the previous month. Weather in January »

Weather in February

February, the last month of the winter in Grover Beach, is also an enjoyable month, with an average temperature varying between 46°F (7.8°C) and 62.2°F (16.8°C). Grover Beach starts February with an average high-temperature of a still refreshing 62.2°F (16.8°C), hinting at a minimal fluctuation from January. Weather in February »

Weather in March

March, the first month of the spring in Grover Beach, is still a comfortable month, with an average temperature fluctuating between 64.9°F (18.3°C) and 46.9°F (8.3°C). The advent of March signifies a minor shift to an average high-temperature of a still comfortable 64.9°F (18.3°C), aligning closely with February. Weather in March »

Weather in April

April, the same as March, is another comfortable spring month in Grover Beach, California, with an average temperature varying between 67.6°F (19.8°C) and 48.6°F (9.2°C). April's average high-temperature is a still enjoyable 67.6°F (19.8°C), maintaining a close comparison with March's 64.9°F (18.3°C). Weather in April »

Weather in May

May, the last month of the spring in Grover Beach, is a pleasant month, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 51.4°F (10.8°C). Grover Beach experiences an average high-temperature of an agreeable 70.5°F (21.4°C) with the onset of May, subtly varied from April's 67.6°F (19.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Grover Beach, California, with an average temperature fluctuating between 75.4°F (24.1°C) and 55°F (12.8°C). At the start of June, Grover Beach's average high-temperature reaches a moderately hot 75.4°F (24.1°C), subtly different from the preceding month. Weather in June »

Weather in July

July, like June, in Grover Beach, California, is another warm summer month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 58.5°F (14.7°C). Grover Beach sees the arrival of July with an average high-temperature of a still moderately hot 78.6°F (25.9°C), indicating a subtle variation from June. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Grover Beach, California, with an average temperature ranging between max 78.8°F (26°C) and min 59.2°F (15.1°C). Grover Beach's average high-temperature in August is a still moderately hot 78.8°F (26°C), marking an insignificant difference from the 78.6°F (25.9°C) of July. Weather in August »

Weather in September

September, the first month of the autumn in Grover Beach, is also a moderately hot month, with an average temperature ranging between max 79.5°F (26.4°C) and min 59.9°F (15.5°C). September, known for its average high temperature of 79.5°F (26.4°C) and an average low temperature of 59.9°F (15.5°C), is the warmest month. Weather in September »

Weather in October

October, like September, in Grover Beach, California, is another warm autumn month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 74.3°F (23.5°C). Grover Beach observes an average high-temperature of a still moderately hot 74.3°F (23.5°C) in October, barely different from 79.5°F (26.4°C) in September. Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Grover Beach, California, with an average temperature ranging between max 67.8°F (19.9°C) and min 51.4°F (10.8°C). With November's onset, the weather reveals a slight temperature decrease, transitioning from a moderately hot 74.3°F (23.5°C) in October to an enjoyable 67.8°F (19.9°C). Weather in November »

Weather in December

December, the first month of the winter in Grover Beach, is still a comfortable month, with an average temperature fluctuating between 61.2°F (16.2°C) and 46.8°F (8.2°C). Grover Beach's temperature records reveal December as the coldest month, marked by average highs of 61.2°F (16.2°C) and lows of 46.8°F (8.2°C). Weather in December »
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How many days does it rain?

In Grover Beach, during the entire year, the rain falls for 47.6 days and collects up to 6.93" (176mm) of precipitation.

When is the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4.

What is the month with the least sunshine?

The months with the least sunshine are February and December, with an average of 6.5h of sunshine.

What is the most humid month?

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

What is the rainiest month?

March is the month with the most rainfall. Rain falls for 8.4 days and accumulates 1.61" (41mm) of precipitation.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What is the driest month?

June and August are months with the least rain when the rain falls for 1 days and typically aggregates up to 0.04" (1mm) of rain.

When are the longest days?

The month with the longest days is June, with an average of 14h and 30min of daylight.

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

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

When is the highest UV index?

June and August, with an average maximum UV index of 6, are months with the highest UV index.

What are the warmest months?

September, with its high-temperature average of 79.5°F (26.4°C) and a low-temperature average of 59.9°F (15.5°C), is the warmest month.

What is the least humid month?

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

What month is the coldest?

Grover Beach experiences its lowest temperatures in December, with an average peak of 61.2°F (16.2°C) and a low 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 is December, with an average of 9h and 48min 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).

Average pressure
Grover Beach, CA

Average pressure - Grover Beach, CA

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

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).

Average humidity
Grover Beach, CA

Average humidity - Grover Beach, CA

The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).

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").

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).

Average daylight / Average sunshine
Grover Beach, CA

Average daylight / Average sunshine - Grover Beach, CA

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).

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).

Average UV index
Grover Beach, CA

Average UV index - Grover Beach, CA

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

Average visibility
Grover Beach, CA

Average visibility - Grover Beach, CA

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

Grover Beach, California, USA

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