Joetsu, Niigata, Japan Climate Change Severity

43
High
The current climate change severity in Joetsu is High, with a 5.03% 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 Sep. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Joetsu 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), Joetsu temperature has changed by around -5.05%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
3949
25.6%
cloudyCloudy
4521
-53.3%
rainyRainy
149108
-27.5%
snowySnowy
1837
105.5%
mistyMisty
04
100%

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

Climate Change Indicators:

Over the past 16 years, Joetsu has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

43/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Joetsu experienced significant changes:

Temperature change of

-0.74 °C

Variation in annual rainfall

+23.58 %

Change in average humidity

-1.1 %

PM2.5 levels surged by

-16.09 %

Heatwave changed by

-2 Days

Coldwave changed by

+3 Days

Wind speeds changed by

+1.04 km/h

These indicators show that Joetsu is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

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

Joetsu Weather Forecast 30 Days (October - November 2026)
Joetsu, Niigata, Japan

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sun. 4, Oct.
overcastOvercast
Temperature Icon22°/9°
Humidity Icon79%
Wind Icon7.9km/h
Mon. 5, Oct.
overcastOvercast
Temperature Icon23°/11°
Humidity Icon77%
Wind Icon11.5km/h
Tue. 6, Oct.
light drizzleLight Drizzle
Temperature Icon17°/11°
Humidity Icon92%
Wind Icon7.2km/h
Wed. 7, Oct.
light rain showerRain Shower
Temperature Icon18°/8°
Humidity Icon87%
Wind Icon12.2km/h
Thu. 8, Oct.
sunnySunny
Temperature Icon21°/6°
Humidity Icon75%
Wind Icon11.5km/h
Fri. 9, Oct.
sunnySunny
Temperature Icon24°/8°
Humidity Icon70%
Wind Icon11.2km/h
Sat. 10, Oct.
sunnySunny
Temperature Icon25°/10°
Humidity Icon72%
Wind Icon11.9km/h
Sun. 11, Oct.
sunnySunny
Temperature Icon25°/11°
Humidity Icon70%
Wind Icon10.4km/h
Mon. 12, Oct.
sunnySunny
Temperature Icon25°/11°
Humidity Icon72%
Wind Icon8.3km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/13°
Humidity Icon79%
Wind Icon15.6km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/12°
Humidity Icon76%
Wind Icon13km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/12°
Humidity Icon79%
Wind Icon14.3km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/12°
Humidity Icon79%
Wind Icon15.1km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/12°
Humidity Icon80%
Wind Icon16.3km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/11°
Humidity Icon78%
Wind Icon14.3km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/11°
Humidity Icon76%
Wind Icon14.4km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/11°
Humidity Icon79%
Wind Icon18.7km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/11°
Humidity Icon77%
Wind Icon15km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/11°
Humidity Icon76%
Wind Icon15.4km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/11°
Humidity Icon79%
Wind Icon18.8km/h
Sat. 24, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/11°
Humidity Icon78%
Wind Icon15km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/10°
Humidity Icon77%
Wind Icon15.8km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/10°
Humidity Icon79%
Wind Icon15.4km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/10°
Humidity Icon76%
Wind Icon17.1km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/10°
Humidity Icon78%
Wind Icon15.8km/h
Thu. 29, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/10°
Humidity Icon77%
Wind Icon16.4km/h
Fri. 30, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon16°/9°
Humidity Icon77%
Wind Icon16.5km/h
Sat. 31, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon17°/9°
Humidity Icon76%
Wind Icon13.6km/h
Sun. 1, Nov.
moderate or heavy rain showerRain Showers
Temperature Icon18°/10°
Humidity Icon75%
Wind Icon17.7km/h
Mon. 2, Nov.
moderate or heavy rain showerRain Showers
Temperature Icon17°/10°
Humidity Icon78%
Wind Icon17.2km/h
Tue. 3, Nov.
moderate or heavy rain showerRain Showers
Temperature Icon16°/9°
Humidity Icon77%
Wind Icon17.9km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 10, Oct.

25°C

Low will be onThu. 8, Oct.

6°C

HumidityHumidity

High will be onTue. 6, Oct.

92%

Low will be onFri. 9, Oct.

70%

Wind SpeedWind Speed

High will be onFri. 23, Oct.

18.8km/h

Low will be onTue. 6, Oct.

7.2km/h

PrecipitationPrecipitation

High will be onFri. 23, Oct.

11.5mm

Low will be onMon. 5, Oct.

0.06mm

Ultraviolet IndexUV

High will be onSun. 11, Oct.

7

Low will be onTue. 6, Oct.

1.4

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