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Weather Forecast for Blenheim9m above sea level

Partly cloudy. Fairly breezy North to Nor'West winds.

Now

-°
Blenheim
Observed at 10:52pm from:
Blenheim (IBLENH93)
Rain (today)WindHumidexHumidityPressure
-mmN km/h-°-%1010.84hPa

Tonight

16°
Blenheim
Partly cloudy. Fairly breezy North to Nor'West winds.
Rain (chance)Rain (amount)WindMoonriseMoonsetMoon Phase
20%traceNNW 23km/h3:29am11:26amWaxing Gibbous

Tomorrow

25°
Blenheim
Mostly sunny. Fairly breezy Nor'West winds.
Rain (chance)Rain (amount)WindUV IndexSunriseSunset
10%traceNW 25km/h5 (Moderate)6:34pm6:22am

Next 24 Hours in Blenheim

Next 9 Days in Blenheim

Fri 27 Mar
Fri 27 Mar
25°
Day
15°
Night
Mostly sunny. Fairly breezy Nor'West winds.
NW
25km/h
10%
chance
of rain

trace
Mostly sunny. Fairly breezy Nor'West winds.
View hourly forecast
Sat 28 Mar
Sat 28 Mar
23°
Day
16°
Night
Mostly cloudy. Fairly breezy Nor'West winds.
NW
25km/h
20%
chance
of rain

9.4mm
Mostly cloudy. Fairly breezy Nor'West winds.
View hourly forecast
Sun 29 Mar
Sun 29 Mar
23°
Day
11°
Night
Afternoon showers. Breezy Westerly winds.
W
18km/h
40%
chance
of rain

1.8mm
Afternoon showers. Breezy Westerly winds.
View hourly forecast
Mon 30 Mar
Mon 30 Mar
17°
Day
10°
Night
A mix of sun and cloud. Fairly breezy South to Sou'East winds.
SSE
20km/h
10%
chance
of rain

trace
A mix of sun and cloud. Fairly breezy South to Sou'East winds.
View hourly forecast
Tue 31 Mar
Tue 31 Mar
17°
Day
9°
Night
Mostly cloudy. Breezy Sou'East winds.
SE
19km/h
20%
chance
of rain

trace
Mostly cloudy. Breezy Sou'East winds.
View hourly forecast
Wed 1 Apr
Wed 1 Apr
19°
Day
10°
Night
Mainly sunny. Breezy Easterly winds.
E
14km/h
10%
chance
of rain

trace
Mainly sunny. Breezy Easterly winds.
View hourly forecast
Thu 2 Apr
Thu 2 Apr
22°
Day
12°
Night
A mix of sun and cloud. Fairly breezy Nor'West winds.
NW
20km/h
10%
chance
of rain

trace
A mix of sun and cloud. Fairly breezy Nor'West winds.
View hourly forecast
Fri 3 Apr
Fri 3 Apr
21°
Day
12°
Night
Mostly cloudy. Breezy Nor'West winds.
NW
18km/h
10%
chance
of rain

trace
Mostly cloudy. Breezy Nor'West winds.
View hourly forecast
Sat 4 Apr
Sat 4 Apr
19°
Day
11°
Night
Partly cloudy. Breezy Sou'East winds.
SE
17km/h
20%
chance
of rain

trace
Partly cloudy. Breezy Sou'East winds.
View hourly forecast

Comments

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Aaron on 26/03/2026 10:24pm

Hi Phil,

Was just wondering why there was such a large discrepancy in the reported rainfall amounts yesterday. I live in Takapuna, and was monitoring the radar all day. We had a lot of rain but no downpours, just steady rain. Anyway, the rainfall amount recorded towards the end of last night per your Takapuna station was close to 100 mm which seems accurate, but the Northcote station was reporting that 190 mm had fallen just before midnight! Northcote is just 5 minutes away from Takapuna so surely there couldn’t have been such a massive difference when there were no thunderstorms present yesterday in either suburb.

WW Forecast Team on 26/03/2026 10:30pm

Hi Aaron, not sure sorry – as it’s a private network and so we can’t double check collaborations etc – and of course no/limited public data for verifying. I know when the Tauranga/Mount floods happened earlier this year both Niwa and MetService had two totally different numbers for the event within a fairly short distance – so it is possible some narrow lines of rain clipped one station and not yours. But without knowing the precise set-up it’s hard to be sure.

Cheers
Phil D

josh on 26/03/2026 10:08pm

wow 100-160mm for auckland yesterday. thats much of this months rain in 24 hours. wettest day since auckland 2023 floods.

Jet on 26/03/2026 7:41pm

Hi phill when is your next climate outlook gonna be ?

WW Forecast Team on 26/03/2026 10:26pm

Hi Jet, Wednesday April 1st.
-WW

Kat on 26/03/2026 6:55pm

Hi Weather Watch

This is just a curiosity question. Why are there so many of those weather info stations in the NOW portion of your website. Are the ‘owners’ of those stations now monitised?
Just curious because of the 9 or more choices.

Thanks in advance and thanks for the work you all do. Great job

Kitty

WW Forecast Team on 26/03/2026 7:28pm

Hi Kitty, thanks for your question. Because the NZ Government has no free open weather data it means we cannot display tax funded/public weather observations from Niwa or MetService, like you can do in other countries (like Australia). So we pay another company to display the privately run network in NZ. We don’t make any money from it, in fact it costs us more to display those weather stations than it does the weather forecast data we have! But it’s important to us for the public to have as much data as possible. It’s also quite common in many of our towns and cities (especially coastal ones) to have large temperature ranges across the day – one weather station doesn’t show you that, but several can paint a better picture. Appreciate your question and kind support 🙂
– Phil D

Jet on 13/03/2026 3:18am

Hi weather watch How much rain would nelson need to make the grass on the moutains around the city to go green?

WW Forecast Team on 14/03/2026 12:21am

Hi Jet, probably 80mm+ to get that, followed by more rain within a week.
– WW

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