San Salvador Department

Cuscatancingo, El Salvador Climate

NASA POWER reanalysis for the half-degree grid cell around Cuscatancingo, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

The warmest month is March, with an average high of 35°C; the coldest is December, with an average low of 22°C. A normal year brings 1092 mm of precipitation.

Temperature through the year

The normal daily high and low and the record for every date at San Salvador/Ilopan, since 1956. The line marks today.

Normal daily high and low temperature at Cuscatancingo through the year, in °C, with the record for each date.10203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 27

Normal high
29°C
Normal low
24°C
Record high
33°Cin 2009
Record low
18°Cin 1957
Chance of a wet day
82%
Daylight
12 h 03 min

Month by month

Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.

MonthAvg highAvg lowRecord highRecord lowPrecipitationWet days
January33°C22°C36°C (2014)12°C (1987)3 mm0.0
February34°C23°C37°C (2020)12°C (1998)3 mm0.0
March35°C24°C37°C (2003)12°C (1990)6 mm0.0
April35°C25°C38°C (2005)12°C (1987)27 mm6.0
May32°C25°C37°C (2003)12°C (1985)146 mm18.6
June30°C25°C35°C (2011)16°C (1989)174 mm21.0
July31°C24°C35°C (1998)14°C (1985)140 mm21.7
August31°C25°C35°C (2002)12°C (1994)177 mm21.7
September29°C24°C33°C (2011)15°C (1957)204 mm24.0
October29°C24°C36°C (2021)13°C (1994)167 mm18.6
November31°C23°C35°C (2010)11°C (1994)36 mm6.0
December32°C22°C37°C (2016)12°C (1997)9 mm3.1
Year32°C24°C1092 mm141

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.

1092 mm in a normal year, most in September.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Cuscatancingo, in percent.020406080100JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Cuscatancingo.

The muggiest month is June, when 100 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January17°C58%2%14%55%29%1%0%
February17°C55%2%18%51%29%1%0%
March18°C56%2%14%36%43%5%0%
April20°C61%0%3%12%52%32%0%
May22°C72%0%1%3%19%73%5%
June23°C79%0%0%0%6%83%11%
July22°C74%0%0%1%16%81%2%
August23°C77%0%0%1%12%80%7%
September23°C83%0%0%0%4%88%7%
October22°C81%0%0%0%15%80%5%
November21°C72%0%1%12%44%42%0%
December19°C64%0%6%33%52%8%0%

Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is January, with the sky 23 percent covered on average; the cloudiest is September, at 74 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is January, averaging 11.9 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 20, with 12 h 57 min of daylight; the shortest is Dec 14, with 11 h 19 min.

Hours of daylight at Cuscatancingo through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Cuscatancingo in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

A record is the highest or lowest value on the date in every year the station has reported, back to 1956. It rests on one station, so a neighbor a few miles away can hold different ones.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Records: NOAA GHCN-Daily, station ES003800510, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.