Weathermondo.comSanta Rosa climate and temperatures
The climate of Santa Rosa is Mediterranean (Köppen: Csa), with hot, dry summers and mild, wet winters. Monthly temperatures range from a minimum of 15°C in winter (December–February) to a maximum of 29°C in summer (June–August). The average annual temperature is around 23°C.
During the winter months, nighttime temperatures can drop to an average of 4°C, while summer nights average around 13°C.
Climate table of Santa Rosa
The climate table below gives you a clear overview of the climate in Santa Rosa by month, from average temperatures and rainfall to UV levels. This makes it easy to see when the weather best suits your travel plans.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 14 | 16 | 17 | 19 | 23 | 27 | 30 | 30 | 27 | 23 | 18 | 16 |
| Temp. min (°C) | 6 | 7 | 9 | 11 | 15 | 19 | 22 | 22 | 19 | 15 | 10 | 7 |
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| Rainfall (mm) | 46 | 34 | 46 | 64 | 43 | 23 | 22 | 75 | 77 | 84 | 61 | 25 |
| UV index | 4 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 6 | 5 | 4 | 4 |
Best time to visit Santa Rosa
The best time to visit Santa Rosa is June, July, August en September. During this period, temperatures are usually pleasant to warm and there is relatively little rainfall. Between June and September, average high temperatures range roughly from 28°C to 29°C, while rainfall remains limited. For a sun or beach holiday, June, July, August en September are the most suitable months. It is often warm to hot and relatively dry during this time. For a city trip, round trip, or active holiday, May, June en July are often more comfortable, as it is warm without the heat becoming too intense. The warmest month is August, with an average daytime temperature of around 29°C. The driest month is July, with about 0 mm of rainfall, while February is usually the wettest month of the year, with approximately 241 mm. Snow plays virtually no role in the climate here.
Average temperature per month
This chart shows the average daytime (maximum) and nighttime (minimum) temperatures per month in Santa Rosa. The figures are based on climate data from recent years and are presented in degrees Celsius, so you can clearly see the temperature range for each month.
Average rainfall per month
This chart shows the average monthly rainfall in Santa Rosa. The figures are based on long-term climate data and are displayed in millimeters, so you can immediately see which months are drier or wetter.
Average UV index per month
This chart shows the average monthly sun intensity in Santa Rosa. The UV index ranges from 0 (no UV radiation) to 11+ (extreme). A higher UV index means you can burn more quickly, making proper sun protection increasingly important.
Average annual temperature
This chart shows the average annual temperature in Santa Rosa based on data from the past ten years. It allows you to see at a glance how the climate is evolving and whether there are clear warming trends.
Average annual rainfall
This chart shows the average annual rainfall in Santa Rosa over the past ten years. It allows you to see at a glance how much rain falls each year and whether there are clear fluctuations between the years.
Weather experiences in Santa Rosa
The weather in Santa Rosa is rated an average of 4.3 out of 5 stars by 8 visitors. Have you been to Santa Rosa? Share your experience with the weather to help other visitors plan their trip.
Average weather per month
Click on a month below and discover what the weather in Santa Rosa is typically like. For each period, you can instantly see the average temperature, rainfall, wind, and UV index. Thanks to years of historical weather data, you’ll know exactly what to expect during your trip.