Climate and monthly weather forecast
San Gregorio, CA

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Weather in January

January, like December, is a moderate winter month in San Gregorio, California, with an average temperature fluctuating between 46.4°F (8°C) and 56.7°F (13.7°C). San Gregorio marks the onset of January with an average high-temperature of a still refreshing 56.7°F (13.7°C), subtly divergent from December's 55.8°F (13.2°C). Weather in January »

Weather in February

February, the last month of the winter in San Gregorio, is also a moderate month, with an average temperature ranging between max 58.3°F (14.6°C) and min 46.4°F (8°C). San Gregorio marks the start of February with an average high-temperature of a still moderate 58.3°F (14.6°C), hinting at a slight fluctuation from January's 56.7°F (13.7°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderate month in San Gregorio, California, with an average temperature ranging between max 59.5°F (15.3°C) and min 46.9°F (8.3°C). The transition from February to March brings an average high-temperature of a still mild 59.5°F (15.3°C), barely different from February's 58.3°F (14.6°C). Weather in March »

Weather in April

April in San Gregorio, California, is a comfortable spring month, with an average temperature fluctuating between 48.2°F (9°C) and 62.2°F (16.8°C). April's advent denotes a minor fluctuation in the average high-temperature to a still refreshing 62.2°F (16.8°C) from March's 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in San Gregorio, is another refreshing month, with an average temperature ranging between max 64.9°F (18.3°C) and min 50.2°F (10.1°C). With the advent of May, San Gregorio's high-temperatures adjust to a still enjoyable 64.9°F (18.3°C), closely aligning with the preceding month. Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in San Gregorio, California, with an average temperature fluctuating between 53.4°F (11.9°C) and 70°F (21.1°C). June's commencement is accompanied by an average high-temperature of an agreeable 70°F (21.1°C), diverging marginally from May's 64.9°F (18.3°C). Weather in June »

Weather in July

July, like June, is another pleasant summer month in San Gregorio, California, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 72.7°F (22.6°C). The introduction of July sees an average high-temperature of a still pleasant 72.7°F (22.6°C), hardly deviating from June. Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in San Gregorio, California, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 56.7°F (13.7°C). San Gregorio witnesses the warmest weather in August, with temperatures averaging a high of 73°F (22.8°C) and a low of 56.7°F (13.7°C). Weather in August »

Weather in September

September, the first month of the autumn in San Gregorio, is also an agreeable month, with an average temperature fluctuating between 56.7°F (13.7°C) and 72.5°F (22.5°C). September's commencement is accompanied by an average high-temperature of a still pleasant 72.5°F (22.5°C), diverging marginally from August's 73°F (22.8°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in San Gregorio, California, with an average temperature fluctuating between 68.2°F (20.1°C) and 54.9°F (12.7°C). With the onset of October, San Gregorio's average high-temperature clocks in at a still pleasant 68.2°F (20.1°C), showing a minor fluctuation from the previous month. Weather in October »

Weather in November

November, the last month of the autumn in San Gregorio, is another refreshing month, with an average temperature ranging between min 50.5°F (10.3°C) and max 61.9°F (16.6°C). The transition to November results in a modest reduction in average high-temperature, moving from an agreeable 68.2°F (20.1°C) in October to a refreshing 61.9°F (16.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a mild month in San Gregorio, California, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 55.8°F (13.2°C). December stands out as San Gregorio's coldest month, with temperatures ranging between an average high of 55.8°F (13.2°C) and a low of 47.1°F (8.4°C). Weather in December »
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, there are 57.5 rainfall days, and 4.76" (121mm) of precipitation is accumulated.

What is the rainiest month?

The month with the most rainfall is February, when the rain falls for 6.6 days and typically aggregates up to 0.98" (25mm) of precipitation.

When is the lowest UV index?

February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the most humid month?

The most humid month is March, with an average relative humidity of 76%.

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?

The month with the least rainfall in San Gregorio, California, is June, when the rain falls for 0.9 days and typically collects 0.04" (1mm) of precipitation.

When are the longest days?

June has the longest days of the year, with an average of 14h and 42min of daylight.

What are the months with the highest UV index?

June through September, with an average maximum UV index of 5, are months with the highest UV index.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 12h of sunshine.

What part of the year is the hottest?

August, known for its average high temperature of 73°F (22.8°C) and an average low temperature of 56.7°F (13.7°C), is the warmest month.

What is the least humid month in San Gregorio?

With an average relative humidity of 68%, October is the least humid month.

What time of the year is the coldest?

December proves to be the coldest month in San Gregorio, recording an average maximum temperature of 55.8°F (13.2°C) and a minimum temperature of 47.1°F (8.4°C).

What is the month with the shortest days?

The month with the shortest days in San Gregorio is December, with an average of 9h and 36min of daylight.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.9h of sunshine.

Average temperature
San Gregorio, CA

Average temperature - San Gregorio, CA

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.8°F).

The months with the highest average low temperature are August and September (56.7°F).
The coldest months (with the lowest average low temperature) are January and February (46.4°F).

Average pressure
San Gregorio, CA

Average pressure - San Gregorio, CA

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

Average wind speed
San Gregorio, CA

Average wind speed - San Gregorio, CA

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity
San Gregorio, CA

Average humidity - San Gregorio, CA

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (68%).

Average rainfall
San Gregorio, CA

Average rainfall - San Gregorio, CA

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days
San Gregorio, CA

Average rainfall days - San Gregorio, CA

The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is June (0.9 days).

Average daylight / Average sunshine
San Gregorio, CA

Average daylight / Average sunshine - San Gregorio, CA

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days
San Gregorio, CA

Average sunshine days - San Gregorio, CA

The months with the most sunshine days are June and July (26.3 days).
The month with the least sunshine days is March (18.3 days).

Average UV index
San Gregorio, CA

Average UV index - San Gregorio, CA

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).

Average visibility
San Gregorio, CA

Average visibility - San Gregorio, 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).

San Gregorio, California, USA

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