Climate Overview
The climate in Santa Ana is temperate. The average annual temperature is 18°C and approximately 2843mm of precipitation falls per year. Santa Ana receives a notable amount of rainfall throughout the year, including during its driest month. Santa Ana is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: September, October, April. The coldest months are August, July, June, when temperatures can drop to 11°C.
Temperature
Santa Ana sees moderate temperature variation throughout the year, ranging from 11°C to 23°C. September is the warmest month, though highs remain moderate at 23°C with a mean of 18°C. August is the coolest month, with minimum temperatures around 11°C and an average of 17°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Santa Ana is a very wet location, receiving approximately 2843mm of precipitation annually, which averages out to around 237mm per month. The wettest month is December, averaging 460mm of rainfall. February and January also tend to see above-average precipitation. The driest month is July, with just 51mm. That's 409mm less than December, 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 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
3 days until Winter
It is currently autumn in Santa Ana, which began on March 20, 2026. Santa Ana is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in September at around 23°C, while the coldest stretch bottoms out in August near 11°C. Winter is next, beginning on June 21, 2026 — 3 days from now.
Spring
Temperatures range from 13 to 23°C. Rainfall is heavy, totalling around 634mm across the season with a monthly average of 211mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 15 to 22°C. Rainfall is heavy, totalling around 1301mm across the season with a monthly average of 434mm. Winds are generally light, averaging 1km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 13 to 23°C. Rainfall is heavy, totalling around 704mm across the season with a monthly average of 235mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 11 to 23°C. Precipitation is moderate at around 203mm for the season, averaging 68mm per month. Winds are generally light, averaging 1km/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 Ana is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 73mm per month. 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 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.
