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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a moderate winter month in Alviso, California, with an average temperature ranging between max 57.7°F (14.3°C) and min 42.6°F (5.9°C). With January's arrival, Alviso notes an average high-temperature of a still refreshing 57.7°F (14.3°C), closely following the trend of the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is another mild month in Alviso, California, with temperature in the range of an average high of 59.7°F (15.4°C) and an average low of 42.8°F (6°C). Alviso's average high-temperature marks a still moderate 59.7°F (15.4°C) with the advent of February, closely mirroring that of the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Alviso, is a comfortable month, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 43.5°F (6.4°C). March's arrival brings an average high-temperature of a comfortable 62.4°F (16.9°C), demonstrating subtle variation from the preceding month. Weather in March »
Weather in April
April, like March, in Alviso, California, is another refreshing spring month, with an average temperature ranging between max 66.7°F (19.3°C) and min 45.3°F (7.4°C). Alviso marks the onset of April with an average high-temperature of a still comfortable 66.7°F (19.3°C), subtly divergent from March's 62.4°F (16.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Alviso, California, with an average temperature ranging between max 71.4°F (21.9°C) and min 48.9°F (9.4°C). Alviso's weather in May displays an average high-temperature of a pleasant 71.4°F (21.9°C), showing minor disparity from April's 66.7°F (19.3°C). Weather in May »
Weather in June
June, the first month of the summer in Alviso, is a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 53.1°F (11.7°C). The shift from May to June is marked by a slight increase in the average high-temperature, moving from an agreeable 71.4°F (21.9°C) to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Alviso, California, with an average temperature ranging between min 55.9°F (13.3°C) and max 83.5°F (28.6°C). July is the month when Alviso, California, experiences its warmest temperatures, averaging a high of 83.5°F (28.6°C) and a low of 55.9°F (13.3°C). July's mean heat index is estimated at a tropical 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Alviso, California, with an average temperature ranging between max 82.4°F (28°C) and min 56.8°F (13.8°C). The shift into August uncovers an average high-temperature of a still moderately hot 82.4°F (28°C), subtly different from the previous month. 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 varying between 55.6°F (13.1°C) and 80.2°F (26.8°C). September commences with an average high-temperature of a still warm 80.2°F (26.8°C), showing little deviation from August's 82.4°F (28°C). Weather in September »
Weather in October
October, the same as September, in Alviso, California, is an agreeable autumn month, with an average temperature fluctuating between 72.9°F (22.7°C) and 52.7°F (11.5°C). The shift from September to October coincides with a small decrease in the average high-temperature, down to a pleasant 72.9°F (22.7°C) from a moderately hot 80.2°F (26.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Alviso, is another refreshing month, with an average temperature fluctuating between 46.9°F (8.3°C) and 63.7°F (17.6°C). November involves a decrease in temperature, down from an agreeable 72.9°F (22.7°C) in October to a comfortable 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 fluctuating between 56.3°F (13.5°C) and 42.6°F (5.9°C). In Alviso, December is the month with the lowest recorded average temperatures, measuring a high of 56.3°F (13.5°C) and a low of 42.6°F (5.9°C). Weather in December »
Updated: Aug 6, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain?
In Alviso, during the entire year, the rain falls for 52.8 days and collects up to 4.06" (103mm) of precipitation.
When is the lowest UV index?
January, 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?
With an average relative humidity of 73%, March is the most humid month.
What is the wettest month?
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)?
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 months with the least rainfall are June through August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.
When are the longest days in Alviso?
With an average of 14h and 42min of daylight, June has the longest days of the year.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
Alviso's July weather, marked by an average high temperature of 83.5°F (28.6°C) and an average low temperature of 55.9°F (13.3°C), is the warmest in the year.
What is the least humid month?
The least humid month is July, with an average relative humidity of 58%.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 12.1h of sunshine.
What is the coldest time of year?
During the coldest month in Alviso, December, temperatures average a high of 56.3°F (13.5°C) and a low of 42.6°F (5.9°C).
What is the month with the shortest days?
With an average of 9h and 36min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Alviso?
With an average of 6h of sunshine, December has the least sunshine of the year.
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).
Average pressure
Alviso, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
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).
Average wind speed
Alviso, CA
- Average wind speed in January:
4.5mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5.7mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.3mph - Average wind speed in December:
4.9mph
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).
Average humidity
Alviso, CA
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (58%).
Average rainfall
Alviso, CA
- Average rainfall in January:
0.63" - Average rainfall in February:
0.63" - Average rainfall in March:
0.83" - Average rainfall in April:
0.31" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.16" - Average rainfall in November:
0.39" - Average rainfall in December:
0.71"
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").
Average rainfall days
Alviso, CA
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
9.9 days - Average rainfall days in April:
6.3 days - Average rainfall days in May:
4 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.4 days - Average rainfall days in September:
2.2 days - Average rainfall days in October:
2.7 days - Average rainfall days in November:
4.4 days - Average rainfall days in December:
7.6 days
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).
Average daylight / Average sunshine
Alviso, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
6h and 2min - Average sunshine in March:
8h and 0min - Average sunshine in April:
10h and 2min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 0min
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).
Average sunshine days
Alviso, CA
- Average sunshine days in January:
23.3 days - Average sunshine days in February:
20.6 days - Average sunshine days in March:
19.5 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
25.9 days - Average sunshine days in June:
28.1 days
- Average sunshine days in July:
28.3 days - Average sunshine days in August:
29.6 days - Average sunshine days in September:
26.8 days - Average sunshine days in October:
26.7 days - Average sunshine days in November:
24.3 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (19.5 days).
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).
Average cloud cover
Alviso, CA
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
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).
Alviso, California, USA
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