Blenheim, Marlborough, New Zealand Climate Change Severity

62
Very High
The current climate change severity in Blenheim is Very High, with a 45.8% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Blenheim Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Blenheim temperature has changed by around -16.09%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
4486
95.4%
cloudyCloudy
5733
-42.1%
rainyRainy
9166
-27.4%
snowySnowy
00
0%
mistyMisty
01
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, Blenheim has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Blenheim experienced significant changes:

Temperature change of

-2.3 °C

Variation in annual rainfall

+25.46 %

Change in average humidity

-1.75 %

PM2.5 levels surged by

-47.91 %

Heatwave changed by

-8 Days

Coldwave changed by

+3 Days

Wind speeds changed by

-11.61 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Blenheim's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jul.

Blenheim Weather Forecast 30 Days (August - September 2026)
Blenheim, Marlborough, New Zealand

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Tue. 18, Aug.
cloudyCloudy
Temperature Icon12°/2°
Humidity Icon71%
Wind Icon20.9km/h
Wed. 19, Aug.
partly cloudyPartly Cloudy
Temperature Icon10°/3°
Humidity Icon76%
Wind Icon14km/h
Thu. 20, Aug.
sunnySunny
Temperature Icon10°/4°
Humidity Icon84%
Wind Icon10.1km/h
Fri. 21, Aug.
sunnySunny
Temperature Icon14°/5°
Humidity Icon79%
Wind Icon14.8km/h
Sat. 22, Aug.
overcastOvercast
Temperature Icon15°/4°
Humidity Icon77%
Wind Icon27.7km/h
Sun. 23, Aug.
sunnySunny
Temperature Icon15°/7°
Humidity Icon59%
Wind Icon47.2km/h
Mon. 24, Aug.
overcastOvercast
Temperature Icon14°/6°
Humidity Icon67%
Wind Icon32.4km/h
Tue. 25, Aug.
overcastOvercast
Temperature Icon15°/10°
Humidity Icon67%
Wind Icon42.8km/h
Wed. 26, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon13°/6°
Humidity Icon84%
Wind Icon15km/h
Thu. 27, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon13°/6°
Humidity Icon82%
Wind Icon14.7km/h
Fri. 28, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon14°/5°
Humidity Icon81%
Wind Icon13.8km/h
Sat. 29, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon83%
Wind Icon12.6km/h
Sun. 30, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon14°/5°
Humidity Icon79%
Wind Icon12.4km/h
Mon. 31, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon79%
Wind Icon15km/h
Tue. 1, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon78%
Wind Icon14.5km/h
Wed. 2, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon80%
Wind Icon13.9km/h
Thu. 3, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon79%
Wind Icon13.6km/h
Fri. 4, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon79%
Wind Icon15.5km/h
Sat. 5, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon81%
Wind Icon16km/h
Sun. 6, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/6°
Humidity Icon78%
Wind Icon16.1km/h
Mon. 7, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/5°
Humidity Icon76%
Wind Icon16.7km/h
Tue. 8, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon75%
Wind Icon16.1km/h
Wed. 9, Sep.
moderate rain at timesRain
Temperature Icon13°/5°
Humidity Icon77%
Wind Icon14.9km/h
Thu. 10, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon80%
Wind Icon16.4km/h
Fri. 11, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/5°
Humidity Icon80%
Wind Icon16.9km/h
Sat. 12, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/5°
Humidity Icon77%
Wind Icon15.4km/h
Sun. 13, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/6°
Humidity Icon77%
Wind Icon18.5km/h
Mon. 14, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/6°
Humidity Icon78%
Wind Icon15.5km/h
Tue. 15, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/6°
Humidity Icon79%
Wind Icon17.6km/h
Wed. 16, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon13°/6°
Humidity Icon79%
Wind Icon17km/h
Thu. 17, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon14°/6°
Humidity Icon79%
Wind Icon18.2km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 22, Aug.

15°C

Low will be onTue. 18, Aug.

2°C

HumidityHumidity

High will be onThu. 20, Aug.

84%

Low will be onSun. 23, Aug.

59%

Wind SpeedWind Speed

High will be onSun. 23, Aug.

47.2km/h

Low will be onThu. 20, Aug.

10.1km/h

PrecipitationPrecipitation

High will be onFri. 11, Sep.

6.5mm

Low will be onThu. 20, Aug.

0.03mm

Ultraviolet IndexUV

High will be onSun. 23, Aug.

5

Low will be onSat. 22, Aug.

2.6

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