Weather in Santa Tecla - 14-day forecast

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

Forecast for the next days in Santa Tecla

today🌧️ 27°💧 9 mm

Sun🌧️ 28°💧 2.5 mm

Mon🌧️ 26°💧 63.3 mm

Tue🌧️ 28°💧 0.3 mm

Wed🌤️ 29°💧 0.8 mm

Thu☁️ 27°💧 0.4 mm

Fri☁️ 28°💧 1.4 mm

Sat🌧️ 29°💧 0.3 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

Monday 7 Sept in Santa Tecla, the forecast high is 26°C. Typical daytime temperatures at this time of year range from 27°C to 30°C, so it will be exceptionally cool. It is cooler than 99% of similar days.

Saturday 5 Sept

27°Ccooler than usual

usually 27°C–30°C

cooler than 84% of similar days

night: exceptionally cool rain: more rain than usual wind: exceptionally light

Sunday 6 Sept

28°Ccooler than usual

usually 27°C–30°C

cooler than 74% of similar days

night: exceptionally cool rain: less rain than usual wind: exceptionally light

Monday 7 Sept

26°Cexceptionally cool

usually 27°C–30°C

cooler than 99% of similar days

night: exceptionally cool rain: exceptionally wet wind: typical

Tuesday 8 Sept

28°Ccooler than usual

usually 27°C–30°C

cooler than 75% of similar days

night: exceptionally cool rain: exceptionally dry wind: exceptionally light

Wednesday 9 Sept

29°Cnear normal

usually 27°C–30°C

night: exceptionally cool rain: exceptionally dry wind: exceptionally light

Thursday 10 Sept

27°Ccooler than usual

usually 27°C–30°C

cooler than 79% of similar days

night: exceptionally cool rain: exceptionally dry wind: exceptionally light

Friday 11 Sept

28°Cnear normal

usually 27°C–30°C

night: exceptionally cool rain: less rain than usual wind: exceptionally light

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 29°C by day. The coolest year was 1999 (27°C) and the warmest was 1994 (32°C). The current forecast averages 28°C - lower than in 89% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Santa Tecla

Santa Tecla - 14-day weather forecast infographic

Santa Tecla 30 & 45-day weather - long-range outlook

Next 15 days · forecast

27°

around 19° at night · days with rain: 10

Weeks 3-4 · avg for September

29°

around 21° at night · rain chance 57%

Weeks 5-7 · avg for October

30°

around 21° at night · rain chance 46%

The 30 & 45-day outlook for Santa Tecla: the next 15 days are a numerical forecast updated daily - on average 27° by day and 19° at night. Further out we rely on multi-year climate averages: around 29° in September, and about 30° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Santa Tecla

Saturday5 September 2026

🌧️27°moderate rain

sunrise 05:46 · sunset 18:06 · night 17° · evening 23° · rain 9.03 mm · humidity 56% · wind 3 m/s · clouds 100%

Sunday6 September 2026

🌧️28°light rain

sunrise 05:46 · sunset 18:05 · night 19° · evening 23° · rain 2.54 mm · humidity 53% · wind 2 m/s · clouds 100%

Monday7 September 2026

🌧️26°very heavy rain

sunrise 05:46 · sunset 18:04 · night 18° · evening 18° · rain 63.34 mm · humidity 66% · wind 4 m/s · clouds 71%

Tuesday8 September 2026

🌧️28°light rain

sunrise 05:46 · sunset 18:04 · night 20° · evening 21° · rain 0.3 mm · humidity 49% · wind 2 m/s · clouds 100%

Wednesday9 September 2026

🌤️29°scattered clouds

sunrise 05:46 · sunset 18:03 · night 20° · evening 21° · rain 0.84 mm · humidity 44% · wind 2 m/s · clouds 33%

Thursday10 September 2026

☁️27°overcast clouds

sunrise 05:46 · sunset 18:02 · night 21° · evening 22° · rain 0.36 mm · humidity 49% · wind 2 m/s · clouds 99%

Friday11 September 2026

☁️28°overcast clouds

sunrise 05:46 · sunset 18:01 · night 20° · evening 21° · rain 1.35 mm · humidity 46% · wind 2 m/s · clouds 94%

Saturday12 September 2026

🌧️29°light rain

sunrise 05:46 · sunset 18:01 · night 20° · evening 21° · rain 0.3 mm · humidity 45% · wind 1 m/s · clouds 10%

Sunday13 September 2026

🌧️29°heavy rain

sunrise 05:46 · sunset 18:00 · night 18° · evening 19° · rain 20.1 mm · humidity 48% · wind 2 m/s · clouds 55%

Monday14 September 2026

🌧️27°moderate rain

sunrise 05:46 · sunset 17:59 · night 19° · evening 20° · rain 7.32 mm · humidity 57% · wind 2 m/s · clouds 42%

Tuesday15 September 2026

🌧️24°moderate rain

sunrise 05:46 · sunset 17:58 · night 19° · evening 20° · rain 14.25 mm · humidity 82% · wind 2 m/s · clouds 99%

Wednesday16 September 2026

🌧️25°very heavy rain

sunrise 05:46 · sunset 17:58 · night 18° · evening 20° · rain 133.26 mm · humidity 69% · wind 1 m/s · clouds 100%

Thursday17 September 2026

🌧️24°moderate rain

sunrise 05:46 · sunset 17:57 · night 20° · evening 20° · rain 11.16 mm · humidity 84% · wind 1 m/s · clouds 100%

Friday18 September 2026

🌧️25°moderate rain

sunrise 05:46 · sunset 17:56 · night 19° · evening 20° · rain 10.41 mm · humidity 75% · wind 2 m/s · clouds 83%

Saturday19 September 2026

🌧️26°light rain

sunrise 05:46 · sunset 17:56 · night 19° · evening 20° · rain 0.81 mm · humidity 61% · wind 2 m/s · clouds 92%

UV index in Santa Tecla - is it safe to sunbathe?

Today the UV index in Santa Tecla 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.

Santa Tecla weather through the year

Warmest, driest months on average: January, February, April, November.

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

Nearby and related places

Antiguo CuscatlánApopaIlopangoCojutepequeSan VicenteSanta AnaZacatecolucaSan MiguelSan Martín

FAQ - Santa Tecla weather

What is the weather like in Santa Tecla today?

Today it is about 27° during the day and 17° at night, moderate rain.

How far ahead can I check the forecast for Santa Tecla?

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.