Climate averages 1991–2020

Wellington weather
in July.

A cool, moderately wet month: the coolest and the 11th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 11.2°C Daytime mean, July
Average low 8.6°C Night-time mean, July
Rainfall 87 mm 12 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Wellington · average highYear overview

July is a cool month in Wellington: daytime highs average 11.2°C and nights cool to about 8.6°C. By daytime temperature it is the coolest month of the year.

Expect about 87 mm of rain on roughly 12 days, which makes July a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 30 min on an average July day.

The nearest other city in this atlas is Lower Hutt (14 km away). In July its highs average 11.5°C, about as warm as Wellington, with 84 mm of rain.

Among the 11 cities listed in New Zealand, Wellington ranks 9th of 11 for the warmest July highs and 5th of 11 for the driest July (rainfall, lowest first). The mean July high of those 11 cities is 11.8°C; Wellington is 0.6°C cooler than that mean.

From July to August, average highs rise by 0.2°C to 11.3°C, and monthly rainfall falls from 87 mm to 82 mm.

The annual picture

July in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 510152025 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Wellington climate table

1991–2020
Monthly climate averages for Wellington, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 17.8°C14.6°C14.6°C557.614.815 h
February 18.3°C15.0°C15.0°C566.113.714 h
March 17.2°C14.0°C14.0°C597.612.412 h
April 15.4°C12.4°C12.4°C739.111.011 h
May 13.8°C11.1°C11.1°C7610.39.910 h
June 12.0°C9.4°C9.4°C9512.19.29 h
July, selected 11.2°C8.6°C8.6°C8712.29.510 h
August 11.3°C8.6°C8.6°C8212.710.510 h
September 12.3°C9.4°C9.4°C7410.711.812 h
October 13.5°C10.4°C10.4°C8311.413.213 h
November 14.7°C11.5°C11.5°C699.114.414 h
December 16.5°C13.4°C13.4°C659.715.115 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

July in nearby cities

Distance from Wellington

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Wellington) is explained once on the Wellington year overview and on the Sources, method and limits page.