Riverside, CA weather and climate in 2026
Day
20 °C
Night
7 °C
Sea
15 °C
Precipitation
75 mm
in month
Rainy days
6 days
in month
Daylight
11 hours
average
Sunshine
8 hours
average
Humidity
62 %
Day
20 °C
Night
7 °C
Sea
15 °C
Precipitation
75 mm
in month
Rainy days
6 days
in month
Daylight
11 hours
average
Sunshine
8 hours
average
Humidity
62 %
Overview: Riverside, CA
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Weather overview for Riverside, CA
Weather overview
Riverside, CA (United States of America) is a place with a tropical climate. The day temperatures range from 20 °C (67 °F) in December to 34 °C (94 °F) in August. The least rainy month in Riverside, CA is June with its 0 days of rain, the rainiest month is February, when it rains 6 days. Temperatures during the night go from 5 °C (42 °F) in December to 17 °C (62 °F) in August.
January weather
The rainfall amount continues to rise, with its value being 66 mm (2.60 in) in Riverside, CA, and the number of rainy days rises similarly to the previous month too, its value is 5 days. The night temperature starts to rise, the value of this measure is 6 °C (43 °F).
February weather
The day temperature rise's start could be observed, with its value of 20 °C (69 °F) in Riverside, CA, while the night temperature continues to rise, the value of this measure is 7 °C (44 °F). The maximum of the rainfall amount can be noticed, its value is 75 mm (2.94 in), and the number of rainy days reaches its maximum too, the value of this measure is 6 days. The beginning of the rise of the number of sun hours (without clouds) could be noticed, its value is 8 hours.
March weather
The rainfall amount starts to descent in March in Riverside, CA. The day temperature rises similarly to the previous month, with its value of 22 °C (71 °F), and the rise of the night temperature can be observed as well, its value is 8 °C (46 °F). The number of sun hours (without clouds) rises similarly to the previous month, with its value of 8 hours.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.April weather
The tourist season is about to start this month in Riverside, CA. The number of rainy days descent's start could be observed, with its value being 3 days, while the rainfall amount continues to descent, the value of this measure is 23 mm (0.90 in). The rise of the night temperature can be observed, its value is 10 °C (49 °F), and the day temperature rises similarly to the previous month as well, with its value of 24 °C (76 °F). The minimum of the humidity can be noticed.
May weather
The tourist season continues in Riverside, CA, and there is pending dry season as well. The day temperature continues to rise, its value is 27 °C (80 °F), and the night temperature rises similarly to the previous month as well, the value of this measure is 12 °C (54 °F). The rainfall amount continues to descent, its value is 7 mm (0.27 in), and the descent of the number of rainy days can be observed too, the value of this measure is 1 day.
June weather
The tourist season continues in Riverside, CA. The number of rainy days is on its minimum, with its value being 0 days, and the minimum of the rainfall amount is observable as well, with its value of 2 mm (0.06 in). The day temperature continues to rise, its value is 30 °C (86 °F), and the night temperature rises similarly to the previous month as well. The number of sun hours (without clouds) starts to rise in this month.
July weather
There is pending tourist season in Riverside, CA, and the ongoing dry season is noticeable as well. The day temperature continues to rise, its value is 34 °C (93 °F), and the rise of the night temperature can be observed too, with its value of 16 °C (61 °F). The maximum of the number of sun hours (without clouds) can be noticed, the value of this measure is 11 hours.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.August weather
The ongoing tourist season is noticeable in Riverside, CA, and the ongoing dry season is noticeable as well. The day temperature reaches its maximum, with its value being 34 °C (94 °F), and the maximum of the night temperature can be noticed too in August. The number of sun hours (without clouds) descent's start could be observed, the value of this measure is 11 hours. The humidity reaches its maximum, the value of this measure is 62 %.
September weather
The tourist season is taking place in Riverside, CA, and the dry season is taking place as well. The day temperature starts to descent, its value is 32 °C (89 °F), and the night temperature descent's start could be observed as well, with its value of 15 °C (59 °F). The number of sun hours (without clouds) descents similarly to the previous month, with its value of 9 hours.
October weather
The day temperature continues to descent, the value of this measure is 28 °C (82 °F) in Riverside, CA, and the descent of the night temperature can be observed too, its value is 12 °C (54 °F). The beginning of the rise of the number of rainy days could be noticed, its value is 2 days, and the rainfall amount starts to rise as well in October. There is pending tourist season, and there is pending dry season as well.
November weather
The number of rainy days rises similarly to the previous month, its value is 3 days in Riverside, CA, and the rainfall amount continues to rise too, its value is 30 mm (1.20 in). The descent of the day temperature can be observed, the value of this measure is 23 °C (74 °F), and the night temperature descents similarly to the previous month too, the value of this measure is 8 °C (46 °F). The descent of the number of sun hours (without clouds) can be observed, with its value of 7 hours.
December weather
The rise of the number of rainy days can be observed, its value is 5 days in Riverside, CA, and the rainfall amount rises similarly to the previous month as well, the value of this measure is 49 mm (1.93 in). The minimum of the day temperature is observable, the value of this measure is 20 °C (67 °F), and the night temperature reaches its minimum too, the value of this measure is 5 °C (42 °F). The wind speed reaches its minimum in December. The minimum of the number of sun hours (without clouds) can be noticed in this month.
FAQs
Is there a dry season in January in Riverside, CA?
No, January is not a dry month in Riverside, CA, expect rain approximately 5 days in a month.
What is the humidity in Riverside, CA in March?
Humidity in Riverside, CA in March is 61 %.
What is the night temperature in April in Riverside, CA?
The average night temperature in Riverside, CA in April is 10 °C (49 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating. An increase of 2 °C (35 °F) compared to the previous month.
What temperature can I expect during the day in May in Riverside, CA?
The average daily temperature in May in Riverside, CA is 27 °C (80 °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. An increase of 2 °C (36 °F) compared to the previous month. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.How many days of precipitation on average can I expect in Riverside, CA in June?
In June in Riverside, CA, we can expect 0 days 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 0.1 days of the week, or in general - 2 % days.
Is July a good month to visit Riverside, CA?
In Riverside, CA in July, there are ideal conditions for a vacation. You can expect just 1 day of rain during the month, taking an umbrella is not necessary. Some people will find 34 °C (93 °F) temperature high, while others will enjoy it. A sea temperature of 20 °C (67 °F) can seem colder to some, but others will call it refreshing. The temperature of 16 °C (61 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the sea temperature in August in Riverside, CA?
The sea will reach 20 °C (69 °F) in August in Riverside, CA. The sea at this temperature is quite cold, but it is already possible to stay in it for a long time and it is pleasantly refreshing on hot, steamy days.
Is it hot in Riverside, CA in September?
In September in Riverside, CA, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
Is there a wet season in Riverside, CA in October?
No, there is no wet season in October in Riverside, CA - you can expect 2 days of rain during the month.
How windy is it in November in Riverside, CA?
In Riverside, CA in November, there will be an average wind scale of 2. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.
How many sunny hours can I expect in December in Riverside, CA?
In December in Riverside, CA, you can expect around 7 hours of sunshine.
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.