Acajutla Weather in September
During September, Acajutla experiences high daytime temperatures of 30°C (86°F) and cooler nights around 25°C (77°F). As the wettest month of the year, expect frequent rainfall.
Rainfall in Acajutla in September
Acajutla is in the rainy season in September, with rain on around 27 days and an average of 342 mm (13 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Acajutla in September
September in Acajutla brings typical temperatures with highs around 30°C (86°F) and lows of 25°C (77°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Acajutla in September
The month enjoys around 209 hours of sunshine. The wet weather tends to wait until afternoon or evening to arrive, leaving the first half of most days dry and sunny.
Average water temperature in September
With water at 29°C (84°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Acajutla. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our Acajutla's climate page.
Acajutla Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F)
Chance of Rain
89%
Precipitation
342 mm (13 in)
Rainy days
27 days
Humidity
83%
Sunshine
209 hours
Percentage Sunshine
Historical weather for Acajutla in September
Browse day-by-day weather records for Acajutla spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Acajutla historical weather extremes in September
Our historical data for Acajutla spans 2005 to 2025, revealing these weather extremes.
- On September 14, 2024, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- The coldest September day was on September 3, 2010, with a maximum of 25°C (77°F).
- Acajutla registered its coldest September night on September 18, 2019, with temperatures dropping to 13°C (55°F).
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 →
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What to Wear in Acajutla in September
Warm but pleasant conditions in Acajutla in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Acajutla in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our Acajutla's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Acajutla climate overview or explore weather in El Salvador.
