Cool
Average highs are around 18°C, so pack for cooler days.
March verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 8.7h per day, so bright days are a strong part of the month. Rainfall averages 69mm, which is relatively low for holiday planning.

Monthly averages
Temp
18°C
Rain
69mm
Sun
8.7h
Sea
12°C
Weather score
39
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Drier
Rainfall averages 69mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.7h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 12°C, so the water can feel cool.
Map
Compare Monterey, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
March18°C average high
March is on the cooler side of Monterey's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
March69mm average rain
March is wetter than Monterey's yearly average, so flexible plans matter more.
Driest monthsMay to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March8.7 hours average sun
March sits close to Monterey's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
March12°C average sea
March is below Monterey's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to November
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
March39 weather score
March scores below Monterey's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsMay to September
These months have the strongest weather score in the monthly averages.