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Iwai — VanSky 34 (Challenging)

Small town · Tokyo, Japan

26° Rain
VanSky
34
Challenging
Comfortable days: 0 of 7 Best window: Fr–Su
Feels like
32°C
Wind
10 km/h
Precip
0%
Humidity
92%
UV
—
/
04:39 / 18:59

VanSky index for Iwai, Japan — 34 out of 100 (Challenging). Decide in seconds: temperature, precipitation, wind and solar output. Data refreshed several times a day from real weather observations.

The main score is weekly (7-day average). The “Today” toggle shows the current day, and the region page compares cities “by area”.

Iwai, Japan — VanSky 34 out of 100. Difficult — consider alternatives. Ranked #665 of 1486 cities in the country (as of 15 July 2026). Temperature 34°C, wind 10 km/h. Solar panels yield 2.1 kWh/day at 400 W — enough for full autonomy.

∅ 7-day average

Sleep
74
26°C
Night temperature
Solar
47
2.1 kWh
for 500W panels • sunny 8.6h
Driving
95
10 km/h
Wind speed (gusts 22)
Condensation
Medium
92%
Humidity level • Dew point 24.2°C oppressive
Awning
Safe
22 km/h
Max gusts
Air Quality
Poor
68 AQI
PM2.5: 52.2 μg/m³

Upcoming forecast

Th
16.07
day
34°
night
26°
solar
2.1 kWh
wind
10 km/h
gusts 22 км/ч
VanSky 31
comfort
Fr
17.07
day
29°
night
25°
solar
1.2 kWh
wind
9 km/h
VanSky 41
comfort
Sa
18.07
day
29°
night
25°
solar
1.5 kWh
wind
14 km/h
gusts 30 км/ч
VanSky 51
comfort
Su
19.07
day
29°
night
25°
solar
1.3 kWh
wind
11 km/h
gusts 24 км/ч
VanSky 50
comfort
Mo
20.07
day
33°
night
25°
solar
1.9 kWh
wind
9 km/h
gusts 22 км/ч
VanSky 35
comfort
Tu
21.07
day
34°
night
25°
solar
2.3 kWh
wind
7 km/h
gusts 19 км/ч
VanSky 22
comfort
We
22.07
day
28°
night
24°
solar
1.1 kWh
wind
6 km/h
gusts 18 км/ч
VanSky 49
comfort

Iwai on map

Open full map →
Open-Meteo

Solar — W Panels W

Today's output
Peak hours
5.2h
sunny 8.6h
Usage estimate

Travel recommendations

  • Wind is calm — safe to open the awning and leave it out overnight.
  • PM2.5 is 52.2 μg/m³ — unhealthy air, avoid outdoor activities and seal the cabin.

Air Quality Today

68
Good
Fair
Moderate
Poor
Danger
68
Poor
High PM2.5 levels — fine particles are harmful, reduce outdoor activities.
PM2.5
52.2
μg/m³
Poor
Dust
0
μg/m³
Good
Pollen
—

Similar by VanSky

Cities with a close score — route alternatives

VanSky Index

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

80–100 Ideal
60–79 Comfortable
40–59 Acceptable
20–39 Challenging
0–19 Extreme

How it's calculated:

  • Thermal comfort 35%
  • Sunshine 25%
  • Precipitation 25%
  • Wind 15%

Data: Open-Meteo · Updated several times a day

Where the weather is best in Japan

Iwai ranks 1414 of 1486 cities. Country average VanSky — 33.

Best
1
Nemuro
89 2
Urakawa
88 3
Komagane
85 4
Shiraoi
84 5
Nayoro
81
Harshest
Iwai you are here
11
Tatebayashi
10
Maebashi
6
Hirobaba
3
Fujioka
3
All 1486 cities in the country

Frequently Asked Questions

Is it possible to live in a motorhome in Iwai?
The weekly VanSky index for Iwai is 34 out of 100 (7-day average). Above 60 is comfortable for parking, below 40 — consider alternatives. Check the 7-day forecast on this page.
What is the solar panel output in Iwai?
Solar panel output data for Iwai is calculated from real peak sun hours. The result is shown in the Solar section — you can adjust it to your panel wattage.
How does VanSky calculate the comfort index for Iwai?
The index for Iwai is calculated using: thermal comfort (temperature + humidity), precipitation, wind, and solar activity. Extreme conditions — frost, storm, heavy rain — drive the score toward zero.

Nearby cities

Akiruno 2 km Itsukaichi 3 km Ōme 4 km Hamura 8 km Fussa 8 km Hakonegasaki 11 km Hachiōji 13 km Yokota 14 km

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🇯🇵 Japan — fuel prices

Updated: 11.07.2026

Regular

$1.03 /l

JPY166.21 · €0.90/l

30 of 133

cheaper than 78% of countries

High-octane

$1.09 /l

JPY176.46 · €0.95/l

15 of 92

cheaper than 85% of countries

軽油

$0.96 /l

JPY155.14 · €0.84/l

21 of 134

cheaper than 85% of countries

All countries Prices: Japan

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