Weather forecast for 10 days
Santa Tecla, El Salvador

Weather forecast for the weekend

Saturday, 17. May

Partly Cloudy
05:28

18:18
CST
Partly Cloudy
27°C / 20°C
  • Wind: 12km/h S
  • Humidity: 72%
  • Precip. probability: 24%
  • Precipitation: 0mm
  • UV index: 11
On Saturday, 17th of May, patchy clouds will move across the sky, allowing for sunshine at times.
Temperatures are predicted to range from a maximum of a moderately hot 27°C to a minimum of an agreeable 20°C.
The maximum heat index, which indicates how humid air affects the felt temperature, is assessed at 29°C.
The expected peak temperature today will be a few degrees lower than the average May maximum of 30.8°C.
Sunrise was at 05:28 and sunset will be at 18:18; the daylight will last for 12h and 49min.

Sunday, 18. May

Scattered Thunderstorms
05:28

18:18
CST
Scattered Thunderstorms
27°C / 19°C
  • Wind: 11km/h SE
  • Humidity: 74%
  • Precip. probability: 53%
  • Precipitation: 2mm
  • UV index: 10
Tomorrow, on Sunday, 18th of May, scattered thunderstorms are expected, with the potential for brief but intense rain and lightning.
Minimal precipitation is anticipated. Temperatures will oscillate between a temperate 27°C at their highest and a breezy 19°C at their lowest.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is estimated at 29°C.
Tomorrow, the expected temperature will be moderately lower than the standard May high of 30.8°C.
Sunrise will be at 05:28 and sunset at 18:18; tomorrow's daylight will last for 12h and 50min.

Frequently asked questions

What is the weather forecast for Santa Tecla for tomorrow?
Tomorrow, scattered thunderstorms are expected, with a chance of isolated heavy downpours.
Will it rain tomorrow?
There is a high chance of rainfall, but precipitation will be minimal.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 27°C, while the minimum temperature will be 19°C. The maximum heat index, which adjusts the air temperature based on humidity, is assessed at 29°C.
The maximum temperature tomorrow will be a few degrees lower than the average highest temperature in May. The lowest temperature tomorrow will be in line with the average low temperature.
When are sunrise and sunset tomorrow?
On Sunday, in Santa Tecla, sunrise will be at 05:28 and sunset at 18:18 (CST).
How many hours of daylight will Santa Tecla have tomorrow?
In Santa Tecla, tomorrow, there will be 12h and 50min of daylight.
What is the weather forecast for Santa Tecla for the next ten days?
In Santa Tecla, a combination of predominantly lightning-active and occasionally overcast and wet weather is forecasted for the next ten days.
Will it rain in the next ten days?
In Santa Tecla, rainfall is anticipated almost every day for the next ten days. With light precipitation of 10mm, Thursday and Friday will be the wettest days.
How hot will it be in the next ten days?
The maximum temperature will range between 27°C and 29°C, while the minimum temperature will be between 19°C and 20°C.
Combining with the humidity, the maximum feel-like temperature will vary between 29°C and 33°C.
What will be the hottest and the coldest days?
The hottest days will be Thursday through next Sunday, with a maximum of 29°C. With a maximum temperature of 27°C, Saturday, Sunday and Tuesday will be the coldest days.

Long-term weather forecast

Sat17.May
  • 27°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Wind: 12km/h S
  • Humidity: 72%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0mm
  • 05:28 18:18 CST
Sun18.May
  • 27°C
  • 19°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 11km/h SE
  • Humidity: 74%
  • UV index: 10
  • Precip. probability: 53%
  • Precipitation: 2mm
  • 05:28 18:18 CST
Mon19.May
  • 28°C
  • 20°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 12km/h SE
  • Humidity: 73%
  • UV index: 11
  • Precip. probability: 46%
  • Precipitation: 2mm
  • 05:28 18:18 CST
Tue20.May
  • 27°C
  • 19°C
Showers
Showers
  • Wind: 12km/h SE
  • Humidity: 73%
  • UV index: 11
  • Precip. probability: 58%
  • Precipitation: 3mm
  • 05:28 18:19 CST
Wed21.May
  • 28°C
  • 20°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 11km/h SE
  • Humidity: 69%
  • UV index: 11
  • Precip. probability: 39%
  • Precipitation: 5mm
  • 05:28 18:19 CST
Thu22.May
  • 29°C
  • 20°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h ESE
  • Humidity: 69%
  • UV index: 11
  • Precip. probability: 68%
  • Precipitation: 10mm
  • 05:28 18:19 CST
Fri23.May
  • 29°C
  • 19°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 11km/h E
  • Humidity: 68%
  • UV index: 10
  • Precip. probability: 72%
  • Precipitation: 10mm
  • 05:27 18:19 CST
Sat24.May
  • 29°C
  • 19°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h ENE
  • Humidity: 66%
  • UV index: 11
  • Precip. probability: 61%
  • Precipitation: 5mm
  • 05:27 18:20 CST
Sun25.May
  • 29°C
  • 19°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h ESE
  • Humidity: 66%
  • UV index: 11
  • Precip. probability: 60%
  • Precipitation: 8mm
  • 05:27 18:20 CST
Mon26.May
  • 28°C
  • 19°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 11km/h ESE
  • Humidity: 67%
  • UV index: 11
  • Precip. probability: 60%
  • Precipitation: 8mm
  • 05:27 18:20 CST
Models point to a combination of primarily unstable and occasionally gloomy and rainy weather is predicted.
Rainfall is expected on Sunday through next Monday. The days with the most rainfall will be Thursday and Friday, with light precipitation of 10mm.
The high temperatures are expected to remain largely stable throughout the coming week. Maximum temperatures will fall between 27°C and 29°C, while the lowest nightly temperature differences will be also negligible, as the lowest temperatures will remain in the range of 19°C to 20°C.
With a maximum temperature of 29°C, Thursday through next Sunday will be the hottest days in Santa Tecla; Saturday, Sunday and Tuesday, with the highest temperature of 27°C, will be the coldest days in Santa Tecla.
Combining with the humidity, the maximum feel-like temperature may increase and vary between 29°C and a humid 33°C.
Updated: May 17, 2025 @ 14:03:26 UTC
Published by: Weather Atlas | About Us
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