Vallejo, CA weather and climate in 2024
Day
18 °C
Night
7 °C
Sea
13 °C
Precipitation
87 mm
in month
Rainy days
8 days
in month
Daylight
10 hours
average
Sunshine
6 hours
average
Humidity
76 %
Day
18 °C
Night
7 °C
Sea
13 °C
Precipitation
87 mm
in month
Rainy days
8 days
in month
Daylight
10 hours
average
Sunshine
6 hours
average
Humidity
76 %
Overview: Vallejo, CA
Weather charts for Vallejo, CA
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Weather overview for Vallejo, CA
Weather overview
Vallejo, CA (United States of America) is a place with a hot climate. Temperatures during the day are in the range from 13 °C (55 °F) in January to 29 °C (83 °F) in July. The highest night temperatures could be experienced in July with 15 °C (60 °F), the lowest in January with 4 °C (40 °F). The least rainy month in Vallejo, CA is July with its 0 days of rain, the rainiest month is December, when it rains 10 days.
January weather
The night temperature is on its minimum, its value is 4 °C (40 °F) in Vallejo, CA, and the day temperature reaches its minimum as well, the value of this measure is 13 °C (55 °F). The beginning of the rise of the number of sun hours (without clouds) could be noticed. The minimum of the wind speed can be noticed in this month.
February weather
The day temperature starts to rise, its value is 16 °C (61 °F) in Vallejo, CA, and the night temperature rise's start could be observed as well, with its value being 6 °C (43 °F). The number of rainy days descent's start could be observed, its value is 10 days. The number of sun hours (without clouds) continues to rise, with its value of 7 hours.
March weather
The rise of the day temperature can be observed, the value of this measure is 18 °C (65 °F) in Vallejo, CA, and the night temperature rises similarly to the previous month as well, with its value being 7 °C (45 °F). The rainfall amount descent's start could be observed in March. The rise of the number of sun hours (without clouds) can be observed, its value is 9 hours.
April weather
The number of rainy days starts to descent in Vallejo, CA, while the rainfall amount descents similarly to the previous month, with its value being 41 mm (1.60 in). The day temperature continues to rise, with its value of 21 °C (69 °F), and the rise of the night temperature can be observed as well, with its value of 9 °C (48 °F). The number of sun hours (without clouds) continues to rise, with its value of 10 hours.
May weather
The tourist season is at its beginning in Vallejo, CA. The number of rainy days continues to descent, with its value being 3 days, and the descent of the rainfall amount can be observed as well, with its value being 21 mm (0.83 in). The day temperature rises similarly to the previous month, with its value of 24 °C (75 °F), and the rise of the night temperature can be observed too, with its value of 12 °C (53 °F). The number of sun hours (without clouds) continues to rise.
June weather
The tourist season continues in Vallejo, CA. The day temperature rises similarly to the previous month, the value of this measure is 27 °C (80 °F), and the night temperature continues to rise too, with its value being 14 °C (57 °F). The rainfall amount continues to descent, with its value of 5 mm (0.18 in), and the number of rainy days descents similarly to the previous month too, with its value being 1 day. The maximum of the number of sun hours (without clouds) is observable, with its value of 11 hours.
July weather
The tourist season is taking place in Vallejo, CA, and the dry season is close to its peak too. The minimum of the number of rainy days is observable, with its value of 0 days, and the rainfall amount reaches its minimum as well, with its value being 1 mm (0.02 in). The day temperature is on its maximum, and the night temperature is on its maximum too, its value is 15 °C (60 °F).
August weather
The tourist season continues in Vallejo, CA, and there is pending dry season as well. The number of sun hours (without clouds) starts to descent, with its value being 10 hours.
September weather
The ongoing tourist season is noticeable in Vallejo, CA, and the dry season is close to its peak as well in September. The number of rainy days rise's start could be observed, its value is 1 day. The day temperature starts to descent, with its value of 27 °C (81 °F), and the night temperature descent's start could be observed as well, the value of this measure is 14 °C (56 °F). The number of sun hours (without clouds) continues to descent, the value of this measure is 10 hours.
October weather
The tourist season is close to its peak in Vallejo, CA. The day temperature continues to descent, and the descent of the night temperature can be observed too, with its value being 11 °C (52 °F). The rainfall amount starts to rise, while the number of rainy days continues to rise, with its value of 4 days. The number of sun hours (without clouds) continues to descent, with its value of 8 hours.
November weather
The number of rainy days rises similarly to the previous month, with its value of 8 days in Vallejo, CA, and the rise of the rainfall amount can be observed as well, the value of this measure is 87 mm (3.41 in). The day temperature descents similarly to the previous month, its value is 18 °C (64 °F), and the night temperature descents similarly to the previous month as well, with its value being 7 °C (45 °F). The number of sun hours (without clouds) descents similarly to the previous month, the value of this measure is 6 hours.
December weather
The number of rainy days reaches its maximum, with its value being 10 days in Vallejo, CA, and the maximum of the rainfall amount can be noticed as well, the value of this measure is 136 mm (5.36 in). The day temperature descents similarly to the previous month, the value of this measure is 13 °C (56 °F), and the night temperature descents similarly to the previous month as well, with its value being 4 °C (40 °F). The minimum of the number of sun hours (without clouds) is observable, the value of this measure is 5 hours. The humidity reaches its maximum, the value of this measure is 81 %.
FAQs
What level of humidity is to expect in March in Vallejo, CA?
Humidity in Vallejo, CA in March is 73 %.
How many sunny hours can I expect in April in Vallejo, CA?
There is an average length of sunshine of 10 hours per day in April in Vallejo, CA. An increase of 2 hours compared to the previous month. The percentage increase is then 21 %.
What is the air temperature in Vallejo, CA in May at night?
The average night temperature in May in Vallejo, CA is 12 °C (53 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
How many days of precipitation on average can I expect in June in Vallejo, CA?
In June in Vallejo, CA, we can expect 1 day to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 0.3 days of the week, or in general - 4 % days. This is a decrease of 2 days compared to the last month. That means a 60 % decrease in the value.
Is July a good month to visit Vallejo, CA?
July is one of the best months to visit Vallejo, CA. The temperature during the day will be nice 29 °C (83 °F). There are only 0 days of rain in the whole month, so you can leave your umbrella at home. The temperature of 15 °C (60 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
Is it hot in Vallejo, CA in August?
In August in Vallejo, CA, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What is the temperature in Vallejo, CA during the day in September?
In Vallejo, CA in September, the average daily temperatures will be 27 °C (81 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
Is there a wet season in October in Vallejo, CA?
No, there is no wet season in October in Vallejo, CA - you can expect 4 days of rain during the month.
Is there a dry season in November in Vallejo, CA?
No, November is not a dry month in Vallejo, CA, expect rain approximately 8 days in a month.
How windy is it in Vallejo, CA in December?
An average wind scale that can be expected in Vallejo, CA in December is 3.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.