Cool
Average highs are around 18°C, so pack for cooler days.
May verdict
Great Barrier Island, New Zealand in May
Weather score27Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 4.4h per day, so this is not one of the brighter months. Rainfall averages 162mm, so some wet days are possible.
May weather
Monthly averages
Temp
18°C
Rain
162mm
Sun
4.4h
Sea
18°C
Weather score
27
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 162mm, so some wet days are possible.
Limited sun
Sunshine averages 4.4h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Weather map
Compare Great Barrier Island, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May18°C average high
May is on the cooler side of Great Barrier Island's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
May162mm average rain
May sits near Great Barrier Island's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May4.4 hours average sun
May is below Great Barrier Island's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May18°C average sea
May is close to Great Barrier Island's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
Weather score
May27 weather score
May scores below Great Barrier Island's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to February and December
These months have the strongest weather score in the monthly averages.
