The best time to visit Santa Rosa
Month-by-month climate averages for Santa Rosa, CA, so you can pick your dates on data rather than guesswork.
The most comfortable time to visit Santa Rosa is usually April, May, November and December, when daytime highs sit in the pleasant 60-78°F range and the heaviest January rain is behind you.
Santa Rosa is warmest in July (highs near 89°F) and coldest in February (lows around 41°F), with roughly 42 inches of precipitation across the year and January the wettest month. The sweet spot for most visitors is April, May, November and December.
These are long-run averages. For the actual days you are travelling, check the live Santa Rosa forecast — and note how much the models agree, because that tells you how much to trust it.
Santa Rosa weather by month
what to expect in Santa Rosa through the yearHere is Santa Rosa's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Santa Rosa by season.