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Weather in El Salvador for September 2025

Your guide to El Salvador weather in September - trends and predictions
  • In general, the average temperature in El Salvador at the beginning of September is 32.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 30.4 °C by the end of September.

  • Expect significant rainfall in El Salvador during September, with an average of 20 rainy days.

  • Is September a good time to visit El Salvador? check out the best time to travel to El Salvador page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
10
Dry days
Average rainy days
20
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/22°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
79 %
Avg humidity

El Salvador in September average weather

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Temperatures trend during September in El Salvador

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Patchy light rain with thunder
Patchy light rain with thunder
31° /20° 11 mm 7
2 Sept. Patchy rain possible
Patchy rain possible
32° /20° 1.1 mm 7
3 Sept. Patchy light rain with thunder
Patchy light rain with thunder
32° /20° 2.6 mm 7
4 Sept. Thundery outbreaks possible
Thundery outbreaks possible
34° /22° 1.9 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
34° /20° 0.8 mm 7
6 Sept. Light rain shower
Light rain shower
29° /20° 4.1 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
34° /20° 0.7 mm 7
8 Sept. Patchy rain possible
Patchy rain possible
35° /20° 4.2 mm 8
9 Sept. Patchy light rain with thunder
Patchy light rain with thunder
32° /20° 30.6 mm 7
10 Sept. Patchy light rain with thunder
Patchy light rain with thunder
29° /20° 10.3 mm 6
11 Sept. Patchy rain possible
Patchy rain possible
33° /20° 3.7 mm 7
12 Sept. Patchy rain possible
Patchy rain possible
33° /20° 1.9 mm 7
13 Sept. Patchy rain possible
Patchy rain possible
33° /21° 4.2 mm 7
14 Sept. Patchy rain possible
Patchy rain possible
34° /20° 1.8 mm 7
15 Sept. Patchy rain possible
Patchy rain possible
33° /21° 0.8 mm 7
16 Sept. Patchy rain possible
Patchy rain possible
31° /21° 0.1 mm 7
17 Sept. Thundery outbreaks possible
Thundery outbreaks possible
30° /24° 0 mm 7
18 Sept. Fog
Fog
29° /23° 0 mm 6
19 Sept. Overcast
Overcast
32° /26° 0 mm 7
20 Sept. Fog
Fog
31° /25° 0 mm 7
21 Sept. Heavy rain at times
Heavy rain at times
28° /26° 4.7 mm 6
22 Sept. Thundery outbreaks possible
Thundery outbreaks possible
29° /24° 0 mm 6
23 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
27° /24° 19.4 mm 6
24 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
28° /25° 22.6 mm 6
25 Sept. Cloudy
Cloudy
30° /25° 0 mm 7
26 Sept. Mist
Mist
30° /25° 0 mm 6
27 Sept. Partly cloudy
Partly cloudy
32° /26° 0 mm 8
28 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
32° /26° 125.9 mm 7
29 Sept. Light rain shower
Light rain shower
30° /23° 3.6 mm 7
30 Sept. Mist
Mist
31° /26° 0 mm 7
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Important Notice
Our weather forecast for El Salvador in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the El Salvador forecast closer to your planned date for the most up-to-date weather information.

El Salvador in September - FAQ

What are the expected maximum and minimum temperatures in El Salvador during September?
During September, expect a variety of temperatures with highs around 31° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in El Salvador during September?
Significant rainfall exceeding 256 mm is expected in El Salvador during September, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in El Salvador during September?
The average wind speed in El Salvador during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to El Salvador in September?

As you prepare for your trip to El Salvador in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in El Salvador, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
    • Insect Repellent: For destinations with mosquitos or other insects

September rainfall patterns in El Salvador

Explore the daily rainfall trends and prepare for El Salvadors September weather 💧

UV exposure in El Salvador during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is El Salvador?

Get accurate weather forecasts for El Salvador, located at latitude 20.219 and longitude -75.427. Stay updated with localized weather information tailored for El Salvador.

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