Mild
Average highs are around 22°C, so days are mild rather than hot.
May verdict
San Diego, California, United States in May
Weather score62Good
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 8.3h per day, so bright days are a strong part of the month. Rainfall averages 5mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
22°C
Rain
5mm
Sun
8.3h
Sea
17°C
Weather score
62
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 5mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.3h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare San Diego, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May22°C average high
May is on the cooler side of San Diego's year, useful if you prefer less intense daytime heat.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
May5mm average rain
May is one of San Diego's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsApril to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May8.3 hours average sun
May is below San Diego's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril and July to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May17°C average sea
May is close to San Diego's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
Weather score
May62 weather score
May sits close to San Diego's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
Hotels in San Diego, California, United States
Marriott
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The US Grant, a Luxury Collection Hotel, San DiegoSan Diego, California, USA
Marriott Marquis San Diego MarinaSan Diego, California, USA
San Diego Marriott Del MarSan Diego, California, USA
San Diego Marriott Gaslamp QuarterSan Diego, California, USA
San Diego Marriott Mission ValleySan Diego, California, USA
The Westin San Diego BayviewSan Diego, California, USA