Climate averages 1991–2020

Santa Tecla weather
in January.

A hot, very dry month: the 4th warmest and the driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 28.4°C Daytime mean, January
Average low 17.4°C Night-time mean, January
Rainfall 1.9 mm fewer than one day with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Santa Tecla · average highYear overview

January is a hot month in Santa Tecla: daytime highs average 28.4°C and nights cool to about 17.4°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 1.9 mm of rain on fewer than one day, which makes January a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 25 min on an average January day.

The nearest other city in this atlas is San Salvador (10 km away). In January its highs average 30.3°C, 1.9°C warmer than Santa Tecla, with 1.9 mm of rain.

Among the 6 cities listed in El Salvador, Santa Tecla ranks 6th of 6 for the warmest January highs and joint 3rd of 6 for the driest January (rainfall, lowest first). The mean January high of those 6 cities is 30.7°C; Santa Tecla is 2.4°C cooler than that mean.

From January to February, average highs rise by 0.9°C to 29.3°C, and monthly rainfall rises from 1.9 mm to 2.0 mm.

The annual picture

January in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 1520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Santa Tecla climate table

1991–2020
Monthly climate averages for Santa Tecla, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 28.4°C17.4°C17.4°C1.90.611.411 h
February 29.3°C17.9°C17.9°C2.00.511.712 h
March 29.7°C18.6°C18.6°C9.82.912.012 h
April 29.1°C19.6°C19.6°C5011.312.412 h
May 27.3°C19.8°C19.8°C22224.912.813 h
June 26.3°C19.5°C19.5°C24826.212.913 h
July 27.2°C19.4°C19.4°C18622.312.813 h
August 27.0°C19.4°C19.4°C23026.012.613 h
September 25.8°C19.2°C19.2°C30328.412.212 h
October 25.7°C18.8°C18.8°C23223.311.812 h
November 26.7°C18.1°C18.1°C457.611.512 h
December 27.7°C17.6°C17.6°C6.81.311.311 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Santa Tecla

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Santa Tecla) is explained once on the Santa Tecla year overview and on the Sources, method and limits page.

San Salvador, Soyapango and Apopa lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.