Monthly weather forecast and climate
Monte Sereno, CA

Weather in January

January, like December, is another mild winter month in Monte Sereno, California, with temperature in the range of an average high of 58.5°F (14.7°C) and an average low of 43.9°F (6.6°C). In Monte Sereno, the average high-temperature is essentially the same as in December - a still mild 58.5°F (14.7°C). Weather in January »

Weather in February

February, the last month of the winter, in Monte Sereno, is another mild month, with average temperature ranging between max 59.5°F (15.3°C) and min 43.5°F (6.4°C). In Monte Sereno, the average high-temperature in February is relatively the same as in January - a still moderate 59.5°F (15.3°C). Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Monte Sereno, California, with average temperature fluctuating between 62.2°F (16.8°C) and 44.1°F (6.7°C). In March, the average high-temperature is essentially the same as in February - an enjoyable 62.2°F (16.8°C). Weather in March »

Weather in April

April, like March, in Monte Sereno, California, is another comfortable spring month, with average temperature ranging between min 45.5°F (7.5°C) and max 66°F (18.9°C). In April, the average high-temperature is practically the same as in March - a still comfortable 66°F (18.9°C). Weather in April »

Weather in May

May, the last month of the spring, in Monte Sereno, is an agreeable month, with average temperature varying between 48.4°F (9.1°C) and 69.6°F (20.9°C). In Monte Sereno, the average high-temperature is almost the same as in April - a pleasant 69.6°F (20.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Monte Sereno, California, with average temperature ranging between min 52.3°F (11.3°C) and max 77.2°F (25.1°C). In June, the average high-temperature marginally rises, from a pleasant 69.6°F (20.9°C) in May, to a moderately hot 77.2°F (25.1°C). Weather in June »

Weather in July

July, like June, in Monte Sereno, California, is a moderately hot summer month, with average temperature ranging between min 54.7°F (12.6°C) and max 80.8°F (27.1°C). July is the warmest month, with an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 54.7°F (12.6°C). In July, the average heat index is evaluated at 83.1°F (28.4°C). Weather in July »

Weather in August

August, the last month of the summer, in Monte Sereno, is another warm month, with average temperature varying between 55.9°F (13.3°C) and 80.4°F (26.9°C). In Monte Sereno, the average high-temperature is almost the same as in July - a still warm 80.4°F (26.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Monte Sereno, California, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 78.4°F (25.8°C). In Monte Sereno, the average high-temperature is almost the same as in August - a still warm 78.4°F (25.8°C). Weather in September »

Weather in October

October, the same as September, in Monte Sereno, California, is another pleasant autumn month, with temperature in the range of an average low of 53.1°F (11.7°C) and an average high of 72.3°F (22.4°C). In October, the average high-temperature slightly decreases, from a moderately hot 78.4°F (25.8°C) in September, to a pleasant 72.3°F (22.4°C). Weather in October »

Weather in November

November, the last month of the autumn, in Monte Sereno, is also an enjoyable month, with average temperature varying between 64°F (17.8°C) and 47.7°F (8.7°C). In November, the average high-temperature marginally drops, from a pleasant 72.3°F (22.4°C) in October, to an enjoyable 64°F (17.8°C). Weather in November »

Weather in December

December, the first month of the winter, in Monte Sereno, is also a moderate month, with average temperature varying between 43.7°F (6.5°C) and 56.7°F (13.7°C). The coldest month is December, with an average high-temperature of 56.7°F (13.7°C) and an average low-temperature of 43.7°F (6.5°C). Weather in December »
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FAQ

How much does it rain in Monte Sereno?

Throughout the year, there are 68.6 rainfall days, and 11.57" (294mm) of precipitation is accumulated.

When is the lowest UV index in Monte Sereno?

Months with the lowest UV index in Monte Sereno, California, are January, February, November and December, with an average maximum UV index of 3.

What is the rainiest month in Monte Sereno?

February is the month with the most rainfall in Monte Sereno, California. Rain falls for 8.2 days and accumulates 2.2" (56mm) of precipitation.

What is the most humid month in Monte Sereno?

With an average relative humidity of 74%, March is the most humid month in Monte Sereno, California.

When are the longest days in Monte Sereno?

With an average of 14.7h of daylight, June has the longest days of the year in Monte Sereno.

What is the month with the highest UV index in Monte Sereno?

Months with the highest UV index in Monte Sereno, California, are June through August, with an average maximum UV index of 6.

What is the warmest month in Monte Sereno?

The warmest month in Monte Sereno is July, with an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 54.7°F (12.6°C).

What are the least humid months in Monte Sereno?

July and September, with an average relative humidity of 62%, are the least humid months.

What is the driest month in Monte Sereno?

Months with the least rainfall in Monte Sereno, California, are July and August Rain falls for 1.4 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in Monte Sereno?

July has the most sunshine of the year, with an average of 12.1h of sunshine.

What is the coldest month in Monte Sereno?

December is the coldest month, with an average high-temperature of 56.7°F (13.7°C) and an average low-temperature of 43.7°F (6.5°C).

What is the month with the shortest days in Monte Sereno?

With an average of 9.6h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Monte Sereno?

December has the least sunshine of the year in Monte Sereno, with an average of 6h of sunshine.

Average temperature
Monte Sereno, CA

Average temperature - Monte Sereno, CA

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (56.7°F).

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

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Average pressure
Monte Sereno, CA

Average pressure - Monte Sereno, CA

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June and September (29.92").

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Average wind speed
Monte Sereno, CA

Average wind speed - Monte Sereno, CA

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.5mph).

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Average humidity
Monte Sereno, CA

Average humidity - Monte Sereno, CA

The month with the highest relative humidity is March (74%).
Months with the lowest relative humidity are July and September (62%).

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Average rainfall
Monte Sereno, CA

Average rainfall - Monte Sereno, CA

The wettest month (with the highest rainfall) is February (2.2").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Monte Sereno, CA

Average rainfall days - Monte Sereno, CA

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.9 days).

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Average daylight / Average sunshine
Monte Sereno, CA

Average daylight / Average sunshine - Monte Sereno, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days
Monte Sereno, CA

Average sunshine days - Monte Sereno, CA

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index
Monte Sereno, CA

Average UV index - Monte Sereno, CA

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Monte Sereno, CA

Average visibility - Monte Sereno, 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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