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Weather and VanSky index

Blenheim, New Zealand — weather and VanSky index

Regional capital · Marlborough District, New Zealand

19°

Partly cloudy day 20° · night 15°

Strong gusts (78 km/h) — do not open the awning, retract it if already out.
Perfect night (15°C) — comfortable without heating or air conditioning.
Strong wind (42 km/h) — drive with extra caution, high-profile vehicles at risk.

Wind 42 km/h Precip 0.0 mm Feels like 14° Humidity 60% Sunrise 06:18 Sunset 19:57 Solar 2.9 kWh Dew point 11° Air AQI 22

VanSky Indextravel comfort how it works

Today 45/100 Acceptable

Week 63/100 Comfortable

Index by day- - - Week 63

45today 45tu 89we 86th 87fr 79sa 91su

A good week for a trip Comfortable days: 5 of 7. Best window: We–Fr. Low point: today 26 Oct (45, partly cloudy).

Blenheim this week

Blenheim: the VanSky index for 26 Oct – 1 Nov is 63 out of 100, “Comfortable”.
Comfortable days: 5 of 7.
Best window: We–Fr.
Low point: today 26 Oct (45, partly cloudy).
Today: 45 out of 100 (acceptable).
Forecast updated 26 Oct, 02:27 UTC.

Daily forecast

The week is close to normal for these dates · tap a day for details

80+ ideal 60–79 comfortable 40–59 acceptable 20–39 challenging 0–19 extreme

00:00 17° Clear 95 0.0 mm

03:00 17° Clear 93 0.0 mm

06:00 16° Clear 92 0.0 mm

09:00 18° Clear 91 0.0 mm

12:00 20° Partly cloudy 91 0.0 mm

15:00 19° Partly cloudy 45 0.0 mm

18:00 17° Partly cloudy 45 0.0 mm

21:00 15° Cloudy 45 0.0 mm

Index 45 · acceptable — what it is made of Weighted 87, adjustments −42 (night, extremes, sea, air) → 45 · how it works

Thermal comfort 35% 89

Sunshine 25% 100

Precipitation 25% 95

Wind 15% 46

Blenheim on map

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Weather and index by day of year

2021–2025 archive

26 October 17° / 10°

water 13°

Rain sometimes Rain or snow on 12 of 35 archive days

October · average days

7 clear

9 partly cloudy

4 overcast

10 with rain or snow

≈ kWh

17° / 10°

day night

Best time to visit January — February Within 5 points of the highest-scoring month

This week · daily average

75 vs usual 82 −7

Daytime average 18° · usual 17° +1°

7 worse than usual for these dates. Tiles: the forecast next to the usual weather for that date — sky, day/night temperature, index; the difference below.

Today 26 Oct

forecast 20°/15° 45

usual 17°/10° 76

▼ 31 +3°

tu 27 Oct

forecast 17°/9° 45

usual 17°/10° 76

▼ 31 ≈

we 28 Oct

forecast 19°/8° 89

usual 17°/10° 79

▲ 10 +2°

th 29 Oct

forecast 18°/11° 86

usual 17°/10° 84

≈ +1°

fr 30 Oct

forecast 19°/9° 87

usual 17°/10° 85

≈ +2°

sa 31 Oct

forecast 12°/10° 79

usual 17°/9° 84

▼ 5 −5°

su 1 Nov

forecast 19°/9° 91

usual 18°/9° 87

▲ 4 +1°

Climate: ERA5, Copernicus Climate Change Service (C3S).

Where the week is better

26 Oct – 1 Nov · weekly average

#	City	Index
1	Whangarei 20° / 11° 1 day of rain 2.2 kWh	88
2	Tauranga 18° / 14° 3 days of rain 2.3 kWh	87
3	Nelson 17° / 12° no rain 2.6 kWh	86
4	Flaxmere 21° / 8° 1 day of rain 2.4 kWh	86
5	Hastings 21° / 11° 2 days of rain 2.4 kWh	85
6	Napier 22° / 8° 1 day of rain 2.3 kWh	85
7	Whakatane 18° / 9° 2 days of rain 1.8 kWh	85
…	Blenheim 18° / 10° no rain 2.6 kWh	63

#	City	Index by day	Index
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City	Index by day	Index
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City	Index by day	Index
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All cities: New Zealand

Frequently Asked Questions

The weekly VanSky index for Blenheim is 63 out of 100. It is the average of the daily scores, adjusted for swings in the weather: the more uneven the week, the lower the score. Above 60 means comfortable conditions for staying, below 40 means it is worth looking elsewhere. The 7-day forecast is further up this page.

Today a 500 W panel setup will produce about 2.9 kWh in Blenheim. The estimate uses the cloud forecast and the length of daylight. Set your own panel power with the “My panels” control at the top of the page and the figures will update.

The daily score for Blenheim combines thermal comfort (temperature and humidity) at 35%, sunshine at 25%, precipitation at 25% and wind at 15%. Frost, storms, extreme heat or heavy rain pull the day's score down sharply. The weekly score is the daily average, adjusted for swings in the weather.

VanSky Index

A weather comfort index for travel: a 0–100 score. Recalculated daily from live weather data — temperature, rainfall, wind and sun.

80–100Ideal

60–79Comfortable

40–59Acceptable

20–39Challenging

0–19Extreme

How it's calculated:

Thermal comfort 35% — temperature + humidity

Sunshine 25% — panel charge, mood; in heat the sun is no longer a bonus

Precipitation 25% — rain → muddy ground

Wind 15% — awning, driving, noise

Extremes override all: frost, heat, storm, downpour

Heat counts by feels-like temperature: at 32°+ the score can’t reach “Comfortable”, muggy nights lower it further

A dangerous day drags the week down: a storm or downpour in the forecast keeps the week from being “Comfortable”

Bonus: warm sea, high panel output

Data: Open-Meteo · Updated several times a day

VanSky index for Blenheim, New Zealand — 63 out of 100 (Comfortable). Decide in seconds: temperature, precipitation, wind and solar output. Data refreshed several times a day from real weather observations. Forecast updated 26 Oct, 02:27 UTC.