Cool
Average highs are around 19°C, so pack for cooler days.
September verdict
Mixed for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 1.7h per day, so this is not one of the brighter months. Rainfall averages 2mm, which is relatively low for holiday planning.
Monthly averages
Temp
19°C
Rain
2mm
Sun
1.7h
Sea
17°C
Weather score
44
Mixed
Cool
Average highs are around 19°C, so pack for cooler days.
Drier
Rainfall averages 2mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 1.7h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Compare Lima, Peru with nearby places by weather score, rain, sun, temperature, and swim conditions.
September19°C average high
September has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary to March
This stretch sets the upper range for average daytime heat.
September2mm average rain
September is close to Lima's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
September1.7 hours average sun
September is one of Lima's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
September17°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to March
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
September44 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
These months have the strongest weather score in the monthly averages.