Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
September verdict
San Salvador, El Salvador in September
Weather score55Mixed
Mixed for holiday weather
Average highs sit around 28°C, giving warm days by monthly-average standards. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 336mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
28°C
Rain
336mm
Sun
5.8h
Sea
30°C
Weather score
55
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 336mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare San Salvador, El Salvador with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September28°C average high
September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsFebruary to April
This stretch sets the upper range for average daytime heat.
Rain
September336mm average rain
September is one of San Salvador's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September5.8 hours average sun
September is one of San Salvador's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April and December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September30°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaApril to November
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September55 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to April and December
These months have the strongest weather score in the monthly averages.
