Cool
Average highs are around 9°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 9°C, so pack for cooler days. Sunshine averages 3.1h per day, so this is not one of the brighter months. Rainfall averages 278mm, so showers are a real planning factor.
Monthly averages
Temp
9°C
Rain
278mm
Sun
3.1h
Sea
15°C
Weather score
5
Poor
Cool
Average highs are around 9°C, so pack for cooler days.
Wet
Rainfall averages 278mm, so showers are a real planning factor.
Limited sun
Sunshine averages 3.1h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Arthur's Pass National Park, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
May9°C average high
May is on the cooler side of Arthur's Pass National Park'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.
May278mm average rain
May is wetter than Arthur's Pass National Park's yearly average, so flexible plans matter more.
Driest monthsFebruary to March and June
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May3.1 hours average sun
May is one of Arthur's Pass National Park's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
May15°C average sea
May is close to Arthur's Pass National Park's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to March
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
May5 weather score
May is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March
These months have the strongest weather score in the monthly averages.