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El Cuco Weather in September
Thinking of visiting El Cuco in September? Expect very high temperatures reaching 31°C (88°F) during the day, dropping to 25°C (77°F) at night, and be prepared for the wettest month of the year.
Rainfall in El Cuco in September
As part of the rainy season, El Cuco sees around 28 days of rain in September, with an average of 348 mm (14 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in El Cuco in September
Daytime temperatures in El Cuco reach 31°C (88°F) in September, dropping to 25°C (77°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit El Cuco. Our weather planner can help you explore destinations with more pleasant weather conditions.
El Cuco Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
94%
Precipitation
348 mm (14 in)
Rainy days
28 days
Humidity
80% *
* Data from: San Miguel, El Salvador (35 KM, 22 Miles).
El Cuco Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in El Cuco - and find the best time to visit.
Daily Historical Temperatures
40-year average (1983-2025)
Based on our historical records, temperatures in El Cuco typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Historical weather records for El Cuco in September
Browse day-by-day weather records for El Cuco spanning 46 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
El Cuco historical weather extremes in September
According to our 25 years of weather records for El Cuco, the following extremes were recorded between 2001 and 2026.
- The hottest September day on record in El Cuco reached 40°C (104°F) (September 14, 2026).
- The coldest September day was on September 28, 2010, with a maximum of 26°C (79°F).
- The lowest overnight temperature recorded in September was 20°C (68°F) (September 1, 2005).
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 El Cuco in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!
What To Do in El Cuco in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
El Cuco 3-Day Forecast
More climate data for El Cuco
See the full El Cuco 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
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