Cool
Average highs are around 13°C, so pack for cooler days.
August verdict
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 4.2h per day, so this is not one of the brighter months. Rainfall averages 87mm, so some wet days are possible.
Monthly averages
Temp
13°C
Rain
87mm
Sun
4.2h
Sea
13°C
Weather score
21
Poor
Cool
Average highs are around 13°C, so pack for cooler days.
Showers
Rainfall averages 87mm, so some wet days are possible.
Limited sun
Sunshine averages 4.2h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Compare Whanganui, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
August13°C average high
August has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
August87mm average rain
August is wetter than Whanganui's yearly average, so flexible plans matter more.
Driest monthsJanuary to May and August to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August4.2 hours average sun
August is below Whanganui'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.
August13°C average sea
August is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to April
Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.
August21 weather score
August 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.