Climate averages 1991–2020

Cabo San Lucas weather
in May.

A warm, very dry month: the 7th warmest and one of the driest of the year. Meets the pleasant-weather rule

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

Average high 27.7°C Daytime mean, May
Average low 21.2°C Night-time mean, May
Rainfall <1 mm Almost no rain
Daylight 13 h Sunrise to sunset, per day
Every month in Cabo San Lucas · average highYear overview

May is a warm month in Cabo San Lucas: daytime highs average 27.7°C and nights cool to about 21.2°C. By daytime temperature it is the 7th warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical May (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 13 h 14 min on an average May day.

The nearest other city in this atlas is San José del Cabo (28 km away). In May its highs average 31.2°C, 3.5°C warmer than Cabo San Lucas, with almost no rain (under 1 mm).

Among the 153 cities listed in Mexico, Cabo San Lucas ranks 110th of 153 for the warmest May highs and joint 3rd of 153 for the driest May (rainfall, lowest first). The mean May high of those 153 cities is 29.6°C; Cabo San Lucas is 2.0°C cooler than that mean.

From May to June, average highs rise by 1.0°C to 28.6°C, and monthly rainfall rises from under 1 mm to 5.3 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. 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 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Cabo San Lucas climate table

1991–2020
Monthly climate averages for Cabo San Lucas, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 24.8°C18.1°C18.1°C7.71.310.911 h
February 24.9°C17.9°C17.9°C8.50.911.411 h
March 25.5°C18.5°C18.5°C1.10.312.012 h
April 26.4°C19.7°C19.7°C0.40.112.713 h
May, selected 27.7°C21.2°C21.2°C0.40.213.213 h
June 28.6°C23.1°C23.1°C5.30.613.514 h
July 30.4°C25.6°C25.6°C193.613.413 h
August 31.1°C26.6°C26.6°C658.912.913 h
September 30.5°C26.4°C26.4°C12410.412.312 h
October 30.4°C25.2°C25.2°C243.011.612 h
November 28.3°C22.3°C22.3°C161.811.111 h
December 25.7°C19.3°C19.3°C9.80.910.811 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 Cabo San Lucas

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 Cabo San Lucas) is explained once on the Cabo San Lucas year overview and on the Sources, method and limits page.