Climate Overview
The climate in Santa Clara is warm and mild. The average annual temperature is 18°C and approximately 3638mm of precipitation falls per year. Santa Clara receives a notable amount of rainfall throughout the year, including during its driest month. Santa Clara sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Santa Clara has relatively stable temperatures year-round, staying within a 9°C range. September is the warmest month, though highs remain moderate at 23°C with a mean of 19°C. January is the coolest month, with minimum temperatures around 14°C and an average of 17°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Santa Clara is a very wet location, receiving approximately 3638mm of precipitation annually, which averages out to around 303mm per month. The wettest month is October, averaging 543mm of rainfall. November and May also tend to see above-average precipitation. The driest month is February, with just 88mm. That's 455mm less than October, 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 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 6km/h in spring, 6km/h in summer, 5km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Santa Clara, which began on March 20, 2026. Santa Clara sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 23°C, while the coldest stretch bottoms out in January near 14°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 14 to 23°C. Rainfall is heavy, totalling around 775mm across the season with a monthly average of 258mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 16 to 23°C. Rainfall is heavy, totalling around 1094mm across the season with a monthly average of 365mm. Winds are generally light, averaging 6km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 16 to 23°C. Rainfall is heavy, totalling around 1423mm across the season with a monthly average of 474mm. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 14 to 21°C. Rainfall is heavy, totalling around 348mm across the season with a monthly average of 116mm. Winds are generally light, averaging 8km/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 January, February and March, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 91mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 23°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
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.
