Climate Overview
The climate in Santa Clara is temperate. The average annual temperature is 15°C and approximately 592mm of precipitation falls per year. January is the wettest month, receiving around 152mm of rainfall. Santa Clara is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, July, June. The coldest months are December, February, January, when temperatures can drop to 6°C.
Temperature
Santa Clara sees moderate temperature variation throughout the year, ranging from 6°C to 26°C. The warmest month is September, when average highs reach 26°C and the mean temperature sits around 19°C. December is the coolest month, with minimum temperatures around 6°C and an average of 9°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 4°C shift in average temperatures.
Precipitation
Santa Clara is a relatively dry area, receiving approximately 592mm of precipitation annually, which averages out to around 49mm per month. The wettest month is January, averaging 152mm of rainfall. March and October also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 152mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Santa Clara is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 0km/h gap between the calmest and windiest months.
Seasons
52 days until Autumn
It is currently summer in Santa Clara, which began on June 21, 2026. Santa Clara is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in September at around 26°C, while the coldest stretch bottoms out in December near 6°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.
Spring
Temperatures range from 10 to 22°C. Precipitation is moderate at around 207mm for the season, averaging 69mm per month. Winds are generally light, averaging 2km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 13 to 26°C. Precipitation is minimal, with only around 1mm for the entire season. Winds are generally light, averaging 2km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 10 to 26°C. Rainfall is relatively light, with around 136mm over the season and a monthly average of 45mm. Winds are generally light, averaging 2km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 6 to 19°C. Precipitation is moderate at around 248mm for the season, averaging 83mm per month. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Santa Clara is during May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 18mm per month. By contrast, December can be quite cold with temperatures dropping to 6°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Santa Clara based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
