Daytime highs, nighttime lows and the warmest cities across El Salvador this September.
El Salvador, experiences maximum daytime temperatures in September ranging from 29°C (84°F) in Apaneca to 32°C (90°F) in San Miguel. Nighttime temperatures generally drop to 23°C (73°F) in San Miguel and 21°C (70°F) in Apaneca.
Explore the map below to discover average September temperatures at the top destinations in El Salvador. For a deeper dive, simply click on any destination dot.
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Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Drill down to September weather for any region in El Salvador.
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Daytime temperatures in San Salvador typically peak at 31°C (88°F) in September, putting it in the very high range.
After dark, San Salvador cools to about 22°C (72°F) on an average September night.
Data insights from our comprehensive database indicate that San Miguel is the city with the highest warmth. Daytime peaks average near 32°C (90°F), while the nights are characterized by a low temperature close to 23°C (73°F).
According to our data, Apaneca holds the title for the coldest city in El Salvador in September. It experiences maximum temperatures of approximately 29°C (84°F) and drops to lows of about 21°C (70°F) during the night.
San Salvador usually sees around 181 hours of sunlight, indicating a moderately sunny period.
The water temperature averages approximately 29°C (84°F) in Acajutla this month, which is a bit warm for swimming. For many people, water temperatures around 29°C (84°F) might feel quite warm, especially compared to typical swimming pool temperatures of 25°C (77°F) to 28°C (82°F).
We have much more information about the climate in El Salvador.
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