Riverside Weather, When to Go and Climate Information

(Riverside, California - CA, USA)

The climate enjoyed by the city of Riverside falls into the category of Mediterranean and semi-arid, meaning that the summers are both dry and hot, while the winters are quite mild, but a little wet at times. It is worth noting that smog can sometimes prove problematic in the city, particularly in the mornings.

Sunny weather is always plentiful in California, and in Riverside, temperatures regularly fluctuate between 24°C / 75°F and 30°C / 86°F, May through September. In July and August, it is not unusual for the mercury to rise above 35°C / 95°F and even top 38°C / 100°F on occasion, although these high temperatures are usually quite bearable, thanks to a relatively low humidity.

During the summer months, the climate remains quite dry, with average monthly precipitation levels generally staying below 0.3 cm / 0.1 inches or 0.5 cm / 0.2 inches May through September. January and February are almost always the wettest months, seeing an average monthly rainfall of 5.8 cm / 2.3 inches and 6.4 cm / 2.5 inches respectively.

Seasonal Climate Variations / When to Go

If you are planning to visit Riverside and prefer a slightly cooler, more pleasant climate, then spring is certainly a good time to visit. The weather is sunny and generally quite dry, and the temperatures are comfortably close to the mid-20s.

Even in the winter months, the daytime temperatures often hover around 20°C / 68°F, either side, although by night, it certainly feels decidedly cooler, especially in December, January and February. Therefore, snow is certainly not something that makes itself known in the beach resort of Riverside, although the surrounding mountains may experience some dustings of snow and heavier flurries.

Riverside Weather and Climate Chart (Averages)

	Maximum	Minimum
January	20°C / 68°F	9°C / 48°F
February	21°C / 70°F	10°C / 50°F
March	21°C / 70°F	11°C / 52°F
April	23°C / 73°F	12°C / 54°F
May	24°C / 75°F	14°C / 57°F
June	27°C / 81°F	16°C / 61°F
July	29°C / 84°F	18°C / 64°F
August	29°C / 84°F	19°C / 66°F
September	28°C / 82°F	18°C / 64°F
October	26°C / 79°F	16°C / 61°F
November	23°C / 73°F	12°C / 54°F
December	21°C / 70°F	9°C / 48°F