Climate Overview
The climate in Santa Ana is hot. The average annual temperature is 29°C and approximately 1990mm of precipitation falls per year. October is the wettest month, receiving around 281mm of rainfall. Santa Ana sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Santa Ana sees moderate temperature variation throughout the year, ranging from 25°C to 38°C. March is the hottest month, with daytime highs reaching 38°C and an average of 32°C. November is the coolest month, with minimum temperatures around 25°C and an average of 28°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.
Precipitation
Santa Ana is a fairly wet location, receiving approximately 1990mm of precipitation annually, which averages out to around 166mm per month. The wettest month is October, averaging 281mm of rainfall. May and September also tend to see above-average precipitation. The driest month is February, with just 8mm. That's 273mm 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 Ana 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 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
64 days until Autumn
It is currently summer in Santa Ana, which began on June 21, 2026. Santa Ana sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 38°C, while the coldest stretch bottoms out in November near 25°C. Autumn is next, beginning on September 23, 2026 — 64 days from now.
Spring
Temperatures range from 27 to 38°C. Rainfall is heavy, totalling around 521mm across the season with a monthly average of 174mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 33°C. Rainfall is heavy, totalling around 603mm across the season with a monthly average of 201mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 32°C. Rainfall is heavy, totalling around 753mm across the season with a monthly average of 251mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 37°C. Rainfall is relatively light, with around 113mm over the season and a monthly average of 38mm. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Santa Ana 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.