Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
March verdict
Guam in March
Weather score65Good
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 6.9h per day, enough for a balanced month. Rainfall averages 89mm, so some wet days are possible.
March weather
Monthly averages
Temp
30°C
Rain
89mm
Sun
6.9h
Sea
28°C
Weather score
65
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 89mm, so some wet days are possible.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Guam with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
March30°C average high
March is close to Guam's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
March89mm average rain
March is one of Guam's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to June and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
March6.9 hours average sun
March is one of Guam's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMarch to June
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
March28°C average sea
March is one of the cooler sea months locally, though the water still averages warm enough for most swimmers.
Warmest seaMay to December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
March65 weather score
March is one of Guam's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to June
These months have the strongest weather score in the monthly averages.
