Katakai — VanSky 77 (Comfortable)

Small town · Chiba Prefecture, Japan

20° Partly cloudy

VanSky

Comfortable

Comfortable days: 7 of 7 Best window: Fr–Su Worse later this week

Feels like

17°C

Wind

33 km/h

Precip

Humidity

64%

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05:44 / 17:03

VanSky index for Katakai, Japan — 77 out of 100 (Comfortable). 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”.

Katakai, Japan — VanSky 77 out of 100. Comfortable for a route. Ranked #1157 of 1486 cities in the country (as of 14 October 2026). Temperature 22°C, wind 33 km/h. Solar panels yield 1.1 kWh/day at 400 W — enough for full autonomy.

∅ 7-day average

Sleep

20°C

Night temperature

Solar

1.1 kWh

for 500W panels • sunny 7.4h

Driving

33 km/h

Wind speed (gusts 45)

Condensation

Low

64%

Humidity level • Dew point 13°C comfortable

Awning

Caution

45 km/h

Max gusts

Air Quality

Fair

30 AQI

PM2.5: 7.1 μg/m³

Upcoming forecast

15.10

day

22°

night

20°

solar

1.1 kWh

wind

33 km/h

gusts 45 км/ч

VanSky 86

comfort

16.10

day

23°

night

21°

solar

1.2 kWh

wind

13 km/h

VanSky 87

comfort

17.10

day

21°

night

20°

solar

1.8 kWh

wind

34 km/h

gusts 45 км/ч

VanSky 89

comfort

18.10

day

22°

night

20°

solar

1.6 kWh

wind

24 km/h

VanSky 92

comfort

19.10

day

24°

night

22°

solar

1.1 kWh

wind

32 km/h

gusts 43 км/ч

VanSky 76

comfort

20.10

day

26°

night

22°

solar

1.6 kWh

wind

28 km/h

VanSky 71

comfort

21.10

day

26°

night

22°

solar

1.7 kWh

wind

49 km/h

gusts 68 км/ч

VanSky 70

comfort

Katakai on map

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Open-Meteo

Solar — W Panels W

Today's output

Peak hours

2.8h

sunny 7.4h

Usage estimate

Travel recommendations

Gusts up to 45 km/h — open awning with caution and watch the forecast.
Perfect night (20°C) — comfortable without heating or air conditioning.
Comfortable temperature (22°C) — ideal for outdoor work and hiking.

Air Quality Today

Good

Fair

Moderate

Poor

Danger

Fair

Air quality is acceptable — minor pollutants, most people won't notice.

PM2.5

7.1

μg/m³

Good

Dust

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

Katakai ranks 1302 of 1486 cities. Country average VanSky — 85.

Best

Harshest

All 1486 cities in the country

Frequently Asked Questions

Is it possible to live in a motorhome in Katakai?

The weekly VanSky index for Katakai is 77 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 Katakai?

Solar panel output data for Katakai 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 Katakai?

The index for Katakai is calculated using: thermal comfort (temperature + humidity), precipitation, wind, and solar activity. Extreme conditions — frost, storm, heavy rain — drive the score toward zero.