Weather in San Miguel - 14-day forecast

Detailed weather forecast for San Miguel, El Salvador: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in San Miguel

today🌧️ 32°💧 5.4 mm

Sun🌧️ 32°💧 3.4 mm

Mon🌧️ 35°💧 20.7 mm

Tue🌧️ 36°💧 1.6 mm

Wed🌤️ 38°💧 3.8 mm

Thu☁️ 38°💧 3.1 mm

Fri🌤️ 38°💧 6.6 mm

Sat☀️ 38°💧 0.8 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Friday 11 Sept in San Miguel, the forecast high is 38°C. Typical daytime temperatures at this time of year range from 28°C to 32°C, so it will be exceptionally warm. It is warmer than 100% of similar days.

Saturday 5 Sept

32°Cwarmer than usual

usually 28°C–33°C

warmer than 74% of similar days

night: near normal rain: typical rainfall wind: lighter than usual

Sunday 6 Sept

32°Cwarmer than usual

usually 28°C–33°C

warmer than 75% of similar days

night: near normal rain: typical rainfall wind: typical

Monday 7 Sept

35°Cexceptionally warm

usually 28°C–33°C

warmer than 94% of similar days

night: exceptionally cool rain: exceptionally wet wind: typical

Tuesday 8 Sept

36°Cexceptionally warm

usually 28°C–33°C

warmer than 97% of similar days

night: warmer than usual rain: less rain than usual wind: typical

Wednesday 9 Sept

38°Cexceptionally warm

usually 28°C–33°C

warmer than 99% of similar days

night: exceptionally warm rain: typical rainfall wind: exceptionally strong

Thursday 10 Sept

38°Cexceptionally warm

usually 28°C–32°C

warmer than 99% of similar days

night: exceptionally warm rain: typical rainfall wind: exceptionally light

Friday 11 Sept

38°Cexceptionally warm

usually 28°C–32°C

warmer than 100% of similar days

night: exceptionally warm rain: typical rainfall wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 31°C by day. The coolest year was 1998 (27°C) and the warmest was 1994 (37°C). The current forecast averages 36°C - higher than in 98% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - San Miguel

San Miguel - 14-day weather forecast infographic

San Miguel 30 & 45-day weather - long-range outlook

Next 15 days · forecast

35°

around 24° at night · days with rain: 14

Weeks 3-4 · avg for September

33°

around 23° at night · rain chance 25%

Weeks 5-7 · avg for October

33°

around 23° at night · rain chance 21%

The 30 & 45-day outlook for San Miguel: the next 15 days are a numerical forecast updated daily - on average 35° by day and 24° at night. Further out we rely on multi-year climate averages: around 33° in September, and about 33° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for San Miguel

Saturday5 September 2026

🌧️32°moderate rain

sunrise 05:41 · sunset 18:01 · night 24° · evening 33° · rain 5.4 mm · humidity 40% · wind 3 m/s · clouds 86%

Sunday6 September 2026

🌧️32°moderate rain

sunrise 05:41 · sunset 18:00 · night 23° · evening 32° · rain 3.44 mm · humidity 39% · wind 4 m/s · clouds 97%

Monday7 September 2026

🌧️35°heavy rain

sunrise 05:42 · sunset 18:00 · night 22° · evening 24° · rain 20.7 mm · humidity 45% · wind 3 m/s · clouds 87%

Tuesday8 September 2026

🌧️36°light rain

sunrise 05:42 · sunset 17:59 · night 24° · evening 28° · rain 1.57 mm · humidity 35% · wind 4 m/s · clouds 93%

Wednesday9 September 2026

🌤️38°scattered clouds

sunrise 05:42 · sunset 17:58 · night 26° · evening 30° · rain 3.75 mm · humidity 25% · wind 5 m/s · clouds 47%

Thursday10 September 2026

☁️38°overcast clouds

sunrise 05:42 · sunset 17:58 · night 26° · evening 28° · rain 3.09 mm · humidity 28% · wind 2 m/s · clouds 100%

Friday11 September 2026

🌤️38°scattered clouds

sunrise 05:42 · sunset 17:57 · night 27° · evening 29° · rain 6.6 mm · humidity 29% · wind 4 m/s · clouds 46%

Saturday12 September 2026

☀️38°clear sky

sunrise 05:42 · sunset 17:56 · night 27° · evening 29° · rain 0.78 mm · humidity 29% · wind 3 m/s · clouds 8%

Sunday13 September 2026

🌧️37°light rain

sunrise 05:42 · sunset 17:55 · night 23° · evening 25° · rain 8.34 mm · humidity 34% · wind 3 m/s · clouds 28%

Monday14 September 2026

🌧️38°heavy rain

sunrise 05:42 · sunset 17:55 · night 23° · evening 25° · rain 27.45 mm · humidity 33% · wind 3 m/s · clouds 63%

Tuesday15 September 2026

🌧️34°heavy rain

sunrise 05:42 · sunset 17:54 · night 23° · evening 24° · rain 42.54 mm · humidity 51% · wind 2 m/s · clouds 100%

Wednesday16 September 2026

🌧️30°moderate rain

sunrise 05:42 · sunset 17:53 · night 23° · evening 25° · rain 14.49 mm · humidity 63% · wind 2 m/s · clouds 97%

Thursday17 September 2026

🌧️30°light rain

sunrise 05:42 · sunset 17:53 · night 24° · evening 25° · rain 9.54 mm · humidity 74% · wind 1 m/s · clouds 71%

Friday18 September 2026

🌧️33°moderate rain

sunrise 05:42 · sunset 17:52 · night 24° · evening 25° · rain 9.33 mm · humidity 62% · wind 2 m/s · clouds 58%

Saturday19 September 2026

🌧️31°light rain

sunrise 05:42 · sunset 17:51 · night 24° · evening 26° · rain 4.77 mm · humidity 73% · wind 1 m/s · clouds 88%

UV index in San Miguel - is it safe to sunbathe?

Today the UV index in San Miguel is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

San Miguel weather through the year

Warmest, driest months on average: January, November, December.

Upcoming public holidays in El Salvador: Independence Day — 15 September · All Souls' Day — 2 November · Christmas Day — 25 December.

Nearby and related places

San VicenteZacatecolucaCojutepequeSan MartínIlopangoCholutecaSanta AnaSanta Tecla

FAQ - San Miguel weather

What is the weather like in San Miguel today?

Today it is about 32° during the day and 24° at night, moderate rain.

How far ahead can I check the forecast for San Miguel?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.