Weathermondo.com
MexicoThe weather in September in El Salvador
It's warm in September in El Salvador with an average temperature of 27°C. Temperatures this month range from a low of 26°C to a high of 29°C. At night, you can expect temperatures between 12°C and 15°C.
Looking for sun? September isn’t a good month to be in El Salvador. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for El Salvador, Mexico. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2023, El Salvador reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 19°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 17°C.
Rainfall amount
In September, there is an average of 128 mm of precipitation, spread over 15 days. The wind speed is around 3 Bft, mostly coming from the East.
Daily weather in September for El Salvador
Click on any day in September to get detailed info about the usual weather on that day in El Salvador. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| El Salvador | New York | |
|---|---|---|
| Average temperature | 27°C | 27°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 128 mm | 57 mm |
| Rainy days | 15 days | 9 days |
Start of September
The month of September starts in El Salvador with hot temps, averaging around 28°C during the day and nights around 15°C.
Mid September
By mid-September, daytime temps stay steady at around 28°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in El Salvador is around 28°C, while nighttime temps are about 14°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of El Salvador for all months and discover the best travel time
Curious about the weather in other parts of Mexico? Check out the climate and weather for spots like Cancún, Mexico City, Playa del Carmen, or explore other destinations in Mexico.
Temperature charts
These charts show the average temperatures in September in El Salvador, Mexico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in El Salvador
Temperature in September in El Salvador over the years
Precipitation charts
These charts show the average amount of precipitation in September in El Salvador, Mexico. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in El Salvador
Total precipitation in September in El Salvador over the years
Daily UV index in September in El Salvador
This chart shows the average daily UV index in September in El Salvador, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in El Salvador
Have you been to El Salvador in September?
Share your weather experience in September in El Salvador.
Average weather in El Salvador by month
Click on a month below to see detailed weather info for El Salvador. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.