San Salvador Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in San Salvador, El Salvador in September.

Planning a getaway to San Salvador, El Salvador this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in San Salvador in September

San Salvador, El Salvador is a region in El Salvador. September in San Salvador generally has very warm temperatures, with heavy precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 22°C (72°F) in San Salvador. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For a closer look at conditions across San Salvador, El Salvador, refer to the map below.

Precipitation

September is a very rainy month with an average rainfall of around 322 mm (13 in) in San Salvador. Looking at the climate data spanning the last 30 years, this month sees the heaviest rainfall of the year in San Salvador.

Average sunshine

Sunshine is fairly consistent across many areas. San Salvador receives about 181 hours of sunlight in September, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore San Salvador by month

Pick a month to see the average temperature, rainfall and sunshine in San Salvador — and find the best time to visit. (based on San Salvador)

Best Places to Visit in San Salvador in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across San Salvador.

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).

Popular Destinations in San Salvador

What is the weather like in September for the most popular destinonation in San Salvador, El Salvador?

San Salvador

In September San Salvador generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
23°C (73°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
259 hours
181 hours
210 hours
Monthly rainfall
237 mm (9.3 in)
322 mm (13 in)
252 mm (9.9 in)
Monthly rainy days
27 days
29 days
23 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in San Salvador, in El Salvador.

In our records: El Salvador September extremes

Notable September records observed across cities in El Salvador in our climate database (1995 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in El Salvador brought 298 mm (12 in) in Acajutla on September 1, 2005.

San Salvador weather in September: frequently asked questions

What is the weather like in San Salvador, El Salvador in September?

San Salvador, El Salvador typically experiences poor weather in September, part of the season. Daytime highs in San Salvador average around 31°C (88°F), and temperatures drop to about 22°C (72°F) at night.

What is the average temperature in San Salvador, El Salvador in September?

San Salvador averages a daytime maximum of 31°C (88°F) in September, with overnight lows close to 22°C (72°F).

Does San Salvador, El Salvador get a lot of rain in September?

Rainfall in San Salvador, El Salvador peaks during September. San Salvador averages roughly 322 mm (13 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit San Salvador, El Salvador?

In our opinion, September may not be the ideal time to visit San Salvador, El Salvador due to the typically poor weather in San Salvador.

On average, the best time to visit San Salvador, El Salvador is in December with generally pleasant weather in San Salvador. On the other hand, the weather in February, March, April, May, June, July, August, September and October tend to be poor.

Interested in more climate information?

We have much more information about the climate in San Salvador.

Weather and climate has detailed information for every country in the world. Are you going to El Salvador? Get detailed historical weather averages for many cities in El Salvador.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.