Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 376mm, so showers are a real planning factor.
Monthly averages
Temp
29°C
Rain
376mm
Sun
6.2h
Sea
30°C
Weather score
57
Good
Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 376mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare El Imposible National Park, El Salvador with nearby places by weather score, rain, sun, temperature, and swim conditions.
September29°C average high
September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJanuary to May
This stretch sets the upper range for average daytime heat.
September376mm average rain
September is one of El Imposible National Park'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.
September6.2 hours average sun
September is one of El Imposible National Park's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
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 30°C in this stretch, so swimming comfort is at its strongest.
September57 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 March and November to December
These months have the strongest weather score in the monthly averages.