Climate and monthly weather forecast
Alviso, CA

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Weather in January

January, like December, is another refreshing winter month in Alviso, California, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 57.7°F (14.3°C). The advent of January denotes an average high-temperature of a still mild 57.7°F (14.3°C), subtly different from December's 56.3°F (13.5°C). Weather in January »

Weather in February

February, the last month of the winter in Alviso, is another refreshing month, with an average temperature fluctuating between 42.8°F (6°C) and 59.7°F (15.4°C). Stepping into February, Alviso records an average high-temperature of a still refreshing 59.7°F (15.4°C), almost consistent with January. Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Alviso, California, with an average temperature fluctuating between 43.5°F (6.4°C) and 62.4°F (16.9°C). Transitioning into March, Alviso experiences an average high-temperature of a still refreshing 62.4°F (16.9°C), marking a minor shift from the preceding month. Weather in March »

Weather in April

April, like March, in Alviso, California, is another comfortable spring month, with an average temperature fluctuating between 66.7°F (19.3°C) and 45.3°F (7.4°C). At the onset of April, Alviso records an average high-temperature of a still refreshing 66.7°F (19.3°C), showing little deviation from the preceding month. Weather in April »

Weather in May

May, the last month of the spring in Alviso, is a pleasant month, with an average temperature varying between 48.9°F (9.4°C) and 71.4°F (21.9°C). May brings an average high-temperature of a pleasant 71.4°F (21.9°C), nearly identical to the preceding month. Weather in May »

Weather in June

June, the first month of the summer in Alviso, is a warm month, with an average temperature fluctuating between 78.6°F (25.9°C) and 53.1°F (11.7°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 71.4°F (21.9°C) to a moderately hot 78.6°F (25.9°C). Weather in June »

Weather in July

July, like June, in Alviso, California, is a moderately hot summer month, with an average temperature varying between 55.9°F (13.3°C) and 83.5°F (28.6°C). The month of July, characterized by an average high of 83.5°F (28.6°C) and a low of 55.9°F (13.3°C), is recognized as the warmest. During July, the heat index is calculated to be a tropical 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Alviso, is another warm month, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 82.4°F (28°C). August experiences an average high-temperature of a still moderately hot 82.4°F (28°C), barely different from July's 83.5°F (28.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Alviso, California, with an average temperature ranging between max 80.2°F (26.8°C) and min 55.6°F (13.1°C). September records an average high-temperature of a still moderately hot 80.2°F (26.8°C), indicating a minor variation from the preceding month. Weather in September »

Weather in October

October, the same as September, in Alviso, California, is another pleasant autumn month, with an average temperature ranging between max 72.9°F (22.7°C) and min 52.7°F (11.5°C). October implies a soft temperature shift, with average high-temperatures reducing from September's moderately hot 80.2°F (26.8°C) to a pleasant 72.9°F (22.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Alviso, California, with an average temperature fluctuating between 63.7°F (17.6°C) and 46.9°F (8.3°C). November brings a minor decrease, with the average high-temperature reducing from an agreeable 72.9°F (22.7°C) in October to a refreshing 63.7°F (17.6°C). Weather in November »

Weather in December

December, the first month of the winter in Alviso, is also a moderate month, with an average temperature ranging between max 56.3°F (13.5°C) and min 42.6°F (5.9°C). Alviso's December weather reaches an average high of 56.3°F (13.5°C) and an average low of 42.6°F (5.9°C), making it the coldest month. Weather in December »
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Frequently asked questions

How much does it rain in Alviso?

Throughout the year, there are 52.8 rainfall days, and 4.06" (103mm) of precipitation is accumulated.

When is the lowest UV index in Alviso?

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

What is the most humid month in Alviso?

The most humid month in Alviso is March, with an average relative humidity of 73%.

What is the rainiest month in Alviso?

The month with the most rainfall is March, when the rain falls for 9.9 days and typically aggregates up to 0.83" (21mm) of precipitation.

When is Daylight Saving Time (DST) in Alviso?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Alviso, California, 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 in Alviso?

The months with the least rainfall in Alviso are June through August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

When are the longest days in Alviso?

The month with the longest days in Alviso, California, is June, with an average of 14h and 42min of daylight.

What is the month with the highest UV index in Alviso?

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

What is the warmest month in Alviso?

July is the warmest month in Alviso, exhibiting average temperatures of 83.5°F (28.6°C) at the peak and 55.9°F (13.3°C) at the base.

What is the least humid month in Alviso?

With an average relative humidity of 58%, July is the least humid month.

What month has the most sunshine in Alviso?

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

What are the coldest months in Alviso?

December, with an average high of 56.3°F (13.5°C) and a low of 42.6°F (5.9°C), signifies the coldest month of the year.

What is the month with the shortest days in Alviso?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

What is the month with the least sunshine in Alviso?

December has the least sunshine of the year in Alviso, California, with an average of 6h of sunshine.

Average temperature
Alviso, CA

Average temperature - Alviso, CA

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (56.3°F).

The month with the highest average low temperature is August (56.8°F).
The coldest months (with the lowest average low temperature) are January and December (42.6°F).

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Average pressure
Alviso, CA

Average pressure - Alviso, CA

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

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Average wind speed
Alviso, CA

Average wind speed - Alviso, CA

The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest months (with the lowest average wind speed) are October and November (4.3mph).

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Average rainfall
Alviso, CA

Average rainfall - Alviso, CA

The wettest month (with the highest rainfall) is March (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").

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Average rainfall days
Alviso, CA

Average rainfall days - Alviso, CA

The month with the highest number of rainy days is March (9.9 days).
The month with the least rainy days is August (0.4 days).

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Average daylight / Average sunshine
Alviso, CA

Average daylight / Average sunshine - Alviso, 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 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days
Alviso, CA

Average sunshine days - Alviso, CA

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (19.5 days).

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Average UV index
Alviso, CA

Average UV index - Alviso, CA

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

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Average visibility
Alviso, CA

Average visibility - Alviso, 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).

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Alviso, California, USA

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