- Clothing
- Waterproof jacket and umbrella strongly recommended.
Tomorrow's Weather Forecast - San Salvador
Tomorrow's weather in San Salvador. high 32°C (90°F), low 22°C (72°F). Thunderstorm.
Tomorrow’s Outlook
Tomorrow will be 2°C cooler than today. Expect heavy rain in the afternoon and evening and night, with rain chances climbing as high as 67%. That risk lines up with humidity averaging 80% through the day the more moisture in the air, the more readily clouds build into showers. Humidity stays high near 80%, so it will feel muggier and stickier than the temperature alone suggests. Winds stay light and calm, rarely topping 10 km/h. Sunrise is at 5:45 AM and sunset at 5:59 PM, for about 12h 14m of daylight.
- Tomorrow
- 32°/ 22°
- Today34° / 23°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon27°
- Rain probability
- 5%
- Wind speed
- 9 km/h
AfternoonNoon – 6 PM30°
- Rain probability
- 52%
- Wind speed
- 10 km/h
Evening6 PM – Midn24°
- Rain probability
- 67%
- Wind speed
- 7 km/h
NightMidn – 6 AM23°
- Rain probability
- 63%
- Wind speed
- 9 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
··
Planning Advice for Tomorrow
- Outdoor
- Not ideal for outdoor plans or car washes — heavy rain expected.
- Travel
- Expect traffic slowdowns from wet roads. Allow extra time.
Sunrise & Sunset
Sunrise
Dawn 5:15 AMTotal Daylight
Full day forecastSolar noon 11:52 AM
Sunset
Dusk 6:29 PMvs today-1 min daylight
Sunrise shiftSame time
Sunset shift1 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
San Salvador is forecast to reach a high of 32°C tomorrow, with an overnight low around 22°C. That's 4° above the long-term average high of 28°C for this time of year. It continues a recent pattern — 28 of the last 28 days with published data have run warmer than normal. Expect a high chance of rain (67% probability) and a gentle breeze averaging 10 km/h. Air quality is currently Moderate (AQI 56), driven mainly by PM2.5 at 8.5 μg/m³.
Today vs Normal
34°C+5° above normal
The long-term average high for today is 29°C.
28 of the last 28 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air Quality
Moderate
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.