Climate averages 1991–2020

Santa Tecla weather
in October.

A warm, very wet month: the coolest and the 10th driest of the year.

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

Average high 25.7°C Daytime mean, October
Average low 18.8°C Night-time mean, October
Rainfall 232 mm 23 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Santa Tecla · average highYear overview

October is a warm month in Santa Tecla: daytime highs average 25.7°C and nights cool to about 18.8°C. By daytime temperature it is the coolest month of the year.

Expect about 232 mm of rain on roughly 23 days, which makes October a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 50 min on an average October day.

The nearest other city in this atlas is San Salvador (10 km away). In October its highs average 27.6°C, 1.9°C warmer than Santa Tecla, with 232 mm of rain.

Among the 6 cities listed in El Salvador, Santa Tecla ranks 6th of 6 for the warmest October highs and joint 2nd of 6 for the driest October (rainfall, lowest first). The mean October high of those 6 cities is 28.0°C; Santa Tecla is 2.3°C cooler than that mean.

From October to November, average highs rise by 1.0°C to 26.7°C, and monthly rainfall falls from 232 mm to 45 mm.

The annual picture

October 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 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, selected 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

October 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.