Monthly weather forecast and climate
Lafayette, CA

Weather in January

January in Lafayette, California, is a mild winter month, with average temperature fluctuating between 56.5°F (13.6°C) and 43.3°F (6.3°C). In Lafayette, the average high-temperature is essentially the same as in December - a mild 56.5°F (13.6°C). Weather in January »

Weather in February

February, the last month of the winter, in Lafayette, is also a moderate month, with average temperature ranging between min 44.1°F (6.7°C) and max 59.4°F (15.2°C). In February, the average high-temperature is relatively the same as in January - a still moderate 59.4°F (15.2°C). Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Lafayette, California, with average temperature fluctuating between 61.7°F (16.5°C) and 45.1°F (7.3°C). In March, the average high-temperature is relatively the same as in February - a comfortable 61.7°F (16.5°C). Weather in March »

Weather in April

April, like March, in Lafayette, California, is another comfortable spring month, with average temperature ranging between min 47.3°F (8.5°C) and max 66.7°F (19.3°C). In April, the average high-temperature is almost the same as in March - a still comfortable 66.7°F (19.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Lafayette, is an agreeable month, with average temperature fluctuating between 70.3°F (21.3°C) and 50.2°F (10.1°C). In Lafayette, the average high-temperature is relatively the same as in April - a pleasant 70.3°F (21.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Lafayette, California, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 54.1°F (12.3°C). In June, the average high-temperature slightly increases, from an agreeable 70.3°F (21.3°C) in May, to a moderately hot 77.4°F (25.2°C). Weather in June »

Weather in July

July, like June, in Lafayette, California, is another warm summer month, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 55.6°F (13.1°C). The warmest month is July, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 55.6°F (13.1°C). Weather in July »

Weather in August

August, the last month of the summer, in Lafayette, is another warm month, with average temperature ranging between min 56.8°F (13.8°C) and max 79.3°F (26.3°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 79.3°F (26.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Lafayette, California, with average temperature ranging between max 79.5°F (26.4°C) and min 56.8°F (13.8°C). In Lafayette, the average high-temperature is practically the same as in August - a still warm 79.5°F (26.4°C). Weather in September »

Weather in October

October, the same as September, in Lafayette, California, is another pleasant autumn month, with average temperature fluctuating between 72.5°F (22.5°C) and 54.1°F (12.3°C). In October, the average high-temperature marginally drops, from a warm 79.5°F (26.4°C) in September, to an agreeable 72.5°F (22.5°C). Weather in October »

Weather in November

November, the last month of the autumn, in Lafayette, is another comfortable month, with average temperature ranging between max 63.3°F (17.4°C) and min 48°F (8.9°C). In Lafayette, the average high-temperature drops, from a pleasant 72.5°F (22.5°C) in October, to a comfortable 63.3°F (17.4°C). Weather in November »

Weather in December

December, the first month of the winter, in Lafayette, is also a fresh month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 55.2°F (12.9°C). The coldest month is December, with an average high-temperature of 55.2°F (12.9°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 Lafayette?

Throughout the year, there are 74.4 rainfall days, and 12.6" (320mm) of precipitation is accumulated.

What is the month with the lowest UV index in Lafayette?

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

What is the rainiest month in Lafayette?

February is the month with the most rainfall. Rain falls for 8.6 days and accumulates 2.6" (66mm) of precipitation.

What is the most humid month in Lafayette?

The most humid month in Lafayette is March, with an average relative humidity of 74%.

When are the longest days in Lafayette?

With an average of 14.8h of daylight, June has the longest days of the year in Lafayette.

When is the highest UV index in Lafayette?

The month with the highest UV index in Lafayette is June, with an average maximum UV index of 6.

What is the warmest month in Lafayette?

July is the warmest month, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 55.6°F (13.1°C).

What is the driest month in Lafayette?

Months with the least rainfall in Lafayette, 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 Lafayette?

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

What is the least humid month in Lafayette?

October is the least humid month in Lafayette, with an average relative humidity of 60%.

What is the coldest month in Lafayette?

The coldest month in Lafayette is December, with an average high-temperature of 55.2°F (12.9°C) and an average low-temperature of 43.7°F (6.5°C).

What is the month with the shortest days in Lafayette?

The month with the shortest days in Lafayette is December, with an average of 9.6h of daylight.

What is the month with the least sunshine in Lafayette?

The month with the least sunshine is December, with an average of 5.8h of sunshine.

Average temperature
Lafayette, CA

Average temperature - Lafayette, CA

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is December (55.2°F).

Months with the highest average low temperature are August and September (56.8°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).

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Average pressure
Lafayette, CA

Average pressure - Lafayette, CA

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed
Lafayette, CA

Average wind speed - Lafayette, CA

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).

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Average rainfall
Lafayette, CA

Average rainfall - Lafayette, CA

The wettest month (with the highest rainfall) is February (2.6").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Lafayette, CA

Average rainfall days - Lafayette, CA

The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is August (0.8 days).

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Average daylight / Average sunshine
Lafayette, CA

Average daylight / Average sunshine - Lafayette, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days
Lafayette, CA

Average sunshine days - Lafayette, CA

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.3 days).

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Average visibility
Lafayette, CA

Average visibility - Lafayette, 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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