Climate averages 1991–2020

Puerto Montt weather
in May.

A cool, very wet month: the 8th warmest and the 9th driest of the year.

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

Average high 12.5°C Daytime mean, May
Average low 7.6°C Night-time mean, May
Rainfall 261 mm 18 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Puerto Montt · average highYear overview

May is a cool month in Puerto Montt: daytime highs average 12.5°C and nights cool to about 7.6°C. By daytime temperature it is the 8th warmest of the 12 months.

Expect about 261 mm of rain on roughly 18 days, which makes May a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 50 min on an average May day.

The nearest other city in this atlas is Osorno (101 km away). In May its highs average 13.2°C, 0.6°C warmer than Puerto Montt, with 194 mm of rain.

Among the 40 cities listed in Chile, Puerto Montt ranks 39th of 40 for the warmest May highs and 40th of 40 for the driest May (rainfall, lowest first). The mean May high of those 40 cities is 17.5°C; Puerto Montt is 5.0°C cooler than that mean.

From May to June, average highs fall by 2.3°C to 10.2°C, and monthly rainfall rises from 261 mm to 311 mm.

The annual picture

May 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. 0510152025 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

Puerto Montt climate table

1991–2020
Monthly climate averages for Puerto Montt, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 18.6°C11.7°C11.7°C10111.214.815 h
February 18.8°C11.9°C11.9°C1009.413.714 h
March 17.3°C10.9°C10.9°C13212.212.412 h
April 14.6°C9.0°C9.0°C18415.511.011 h
May, selected 12.5°C7.6°C7.6°C26118.29.810 h
June 10.2°C5.8°C5.8°C31120.89.29 h
July 9.6°C4.7°C4.7°C27620.19.59 h
August 10.4°C4.9°C4.9°C27720.610.510 h
September 12.0°C5.5°C5.5°C18517.411.812 h
October 13.7°C7.0°C7.0°C18017.513.213 h
November 15.3°C8.6°C8.6°C15115.414.414 h
December 17.2°C10.3°C10.3°C13713.715.115 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

May in nearby cities

Distance from Puerto Montt

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 Puerto Montt) is explained once on the Puerto Montt year overview and on the Sources, method and limits page.