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Santa Ana Weather in September
September in Santa Ana typically sees daytime highs of 31°C (88°F) and nighttime lows of 21°C (70°F). As the wettest month of the year, expect more rainfall than other months.
Rainfall in Santa Ana in September
This month is known for its intense rain, often falling heavily. Having a poncho will help you stay dry during the showers. Looking at the last 30 years, the data shows about 28 days with rain, averaging 267 mm (11 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Santa Ana in September
Santa Ana in September gets highs of 31°C (88°F) during the day and drops to 21°C (70°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights are mild at around 21°C (70°F), which is comfortable for most people.
Sunshine in Santa Ana in September
Expect a lot of sunshine this month, with about 202 hours of sun. These sunny conditions add to the overall experience.September in Santa Ana has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Santa Ana Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
31°C (88°F)
Chance of Rain
95%
Precipitation
267 mm (11 in)
Rainy days
28 days
Humidity
82%
Sunshine
202 hours
Percentage Sunshine
Santa Ana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santa Ana - and find the best time to visit.
Daily Historical Temperatures
44-year average (1976-2025)
Based on our historical records, temperatures in Santa Ana typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in September
Daily Historical Precipitation
44-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Santa Ana in September
Browse day-by-day weather records for Santa Ana spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santa Ana historical weather extremes in September
Based on 25 years of weather observations in Santa Ana between 2001 and 2026, these are the recorded extremes.
- The warmest day in September was on September 11, 2026, with a maximum of 37°C (99°F).
- Santa Ana experienced its chilliest September day on September 26, 2010, reaching only 23°C (73°F).
- The lowest overnight temperature recorded in September was 16°C (61°F) (September 10, 2011).
- The wettest day in September Santa Ana was on September 15, 2016 with 181 mm (7.1 in) of precipitation.
Best Places in El Salvador in September
Find out more about the weather in El Salvador and which places have the best travel conditions in this month. See all of El Salvador in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Santa Ana in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Santa Ana in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Santa Ana 3-Day Forecast
More climate data for Santa Ana
Temperature Rainfall Sunshine Humidity
See the full Santa Ana climate overview or explore weather in El Salvador.
Popular in September
Where to go in September - average daytime high across popular destinations.
San Miguel
32°C (90°F) San Salvador31°C (88°F) El Cuco31°C (88°F) Santa Ana31°C (88°F) El Zonte29°C (84°F) Concepción de Ataco29°C (84°F) La Libertad29°C (84°F) El Sunzal29°C (84°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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