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Forecast confidence: High · models disagree by 1°C

Porirua weather

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Light drizzle,much the same tomorrow

European, the American and the German model agree on a high near 15° in Porirua today. Tomorrow: cloudy, around 16°, with a 0% chance of rain.

15°13°
16°13°
15°13°
15°10°
15°9°
17°11°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agree
EuropeanECMWF
16°
Light drizzle
Today 16°·Low 13°·Rain 50%
AmericanNOAA GFS
16°
Light drizzle
Today 16°·Low 13°·Rain 0%
GermanDWD ICON
15°
Cloudy
Today 15°·Low 13°·Rain 0%
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Porirua weather in numbers

from 30 years of measured normals

Porirua swings 14°C across the year, from 20°C highs in January to 6°C lows in July, and July is usually the wettest month in a year that brings about 1295 mm of precipitation.

Warmest month
January
20°C average high
Coldest month
July
6°C average low
Wettest month
July
1295 mm a year
Below freezing
Never
overnight lows stay above 0°C
Comfortable
4 months
January, February, March and April
Residents
62,000
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The weather map: all three models at once

European, American, German side by side around Porirua and nearby towns.Live rain radar →
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Porirua hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Porirua 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Light drizzle
15° 13°
models agree
Tomorrow
Cloudy
16° 13°
models agree
Mon
Light drizzle
15° 13°
models agree
Tue
Showers
15° 10°
models agree
Wed
Clear
15° 9°
models agree
Thu
Cloudy
17° 11°
models agree
Fri
Mostly clear
15° 10°
models agree
Sat
Partly cloudy
16° 10°
models agree
Sun
Light drizzle
16° 12°
models agree
Mon
Drizzle
15° 10°
models agree
Tue
Light drizzle
14° 10°
models agree
Wed
Cloudy
16° 10°
±4°
Thu
Cloudy
16° 9°
models agree
Fri
Clear
17° 9°
models agree

Porirua, New Zealand. Below we compare what European, American, German forecast for Porirua right now and flag exactly where they disagree, then break down Porirua's weather month by month and which forecast model has been most accurate here.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in New Zealand before you trust any single number.

Porirua weather by month

what to expect in Porirua through the year, 1991-2020 averages

Here is Porirua's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Porirua by season.

Jan
20°
13°
Mild
Feb
20°
14°
Mild
Mar
19°
13°
Mild
Apr
17°
11°
Mild
May
15°
9°
Mild
Jun
12°
7°
Cool
Jul
11°
6°
Cool
Wettest
Aug
12°
7°
Cool
Sep
13°
8°
Cool
Oct
15°
9°
Mild
Nov
16°
11°
Mild
Dec
17°
12°
Mild

What Porirua's weather is like through the year

Porirua runs from warm summers, with January highs near 20°C, to cool winters, when July lows sit around 6°C (a swing of about 14°C across the year). July is usually the wettest month, and Porirua sees roughly 1295 mm of precipitation annually.

Best time to visit Porirua

The most comfortable time to visit Porirua is usually January, February, March and April, when daytime highs sit in the pleasant 16-26°C range and the heaviest July rain is behind you.

How the weather around Porirua has changed since 1995

Porirua sits in the same roughly 50 km square of NASA's reanalysis as Lower Hutt. That square ran 0.4°C warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Lower Hutt page.

Which forecast is most accurate in Porirua?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
92
/100rank #1
93±0.4°C94±3.2 km/h8994% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
91
/100rank #2
92±0.4°C91±4.7 km/h8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
G
German
89
/100rank #3
92±0.5°C94±3.2 km/h8290% hitDeutscher Wetterdienst (DWD)Offenbach am Main, Germany

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 244 cities. Lower error means a higher score. See which forecast model is most accurate in New Zealand, how we measure forecast accuracy, or which model each weather app uses.

Bottom line: over the last 30 days the American model has been the most accurate forecast for Porirua, scoring 92/100 on our CheckWeather Score, ahead of the European at 91. See the full NZ accuracy scoreboard for exactly how every model is tested.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in New Zealand? Give each 1 to 5 stars.

EuropeanECMWF
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AmericanNOAA GFS
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GermanDWD ICON
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°15° to 16°±50%0% to 50% chance
Tomorrowmodels agree16° to 16°models agree0% to 0% chance
Mon±1°15° to 15°±38%3% to 41% chance
Tue±1°15° to 15°±9%91% to 100% chance
Wed±1°15° to 16°±3%6% to 9% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Porirua

today, local time
Sunrise
06:19
Sunset
19:52
Daylight
13h 33m

Common questions

What's the weather in Porirua today?
Saturday 24 October: European, the American and the German model agree on a high near 15° in Porirua today. Tomorrow: cloudy, around 16°, with a 0% chance of rain. The forecast on this page refreshes live.
Will it rain in Porirua today or tomorrow?
Rain looks unlikely in Porirua on Sunday 25 October: no model gives more than 0% (European 0%, American 0%, German 0%). On Saturday 24 October the highest chance of rain from any model is 50%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Porirua?
Over the last 30 days, the American model has been the most accurate for Porirua (CheckWeather Score 92/100), ahead of the European at 91. We grade every model against the recorded weather. See the NZ accuracy scoreboard for the full method.
What is the warmest month in Porirua?
January is typically the warmest month in Porirua, with average highs around 20°C.
How cold does Porirua get?
The coldest month in Porirua is July, when overnight lows average about 6°C.
How much rain does Porirua get?
Porirua sees roughly 1295 mm of precipitation a year, with July usually the wettest month.
When is the best time to visit Porirua?
The most comfortable time to visit Porirua is usually January, February, March and April, when daytime highs sit in the pleasant 16-26°C range and the heaviest July rain is behind you.
Does it snow in Porirua?
Rarely - Porirua very seldom sees overnight lows drop below freezing, so lasting snow is unusual.

Nearby

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