Mild
Average highs are around 25°C, so days are mild rather than hot.
June verdict
Napa, California, United States in June
Weather score67Good
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 11h per day, so bright days are a strong part of the month. Rainfall averages 6mm, which is relatively low for holiday planning.
June weather
Monthly averages
Temp
25°C
Rain
6mm
Sun
11h
Sea
11°C
Weather score
67
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 6mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 11°C, so the water can feel cool.
Map
Weather map
Compare Napa, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
June25°C average high
June sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
June6mm average rain
June is one of Napa'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
June11 hours average sun
June is one of Napa's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
June11°C average sea
June is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary and August to December
Sea temperatures are usually near 12°C in this stretch, so swimming comfort is at its strongest.
Weather score
June67 weather score
June is one of Napa's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsMay to September
These months have the strongest weather score in the monthly averages.
