Joetsu, Niigata, Japan Climate Change Severity

43
High
The current climate change severity in Joetsu is High, with a 0.2% 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 May (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Joetsu Weather Condition Changes (Historic Vs 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 +4.7%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
1825
38.8%

cloudyCloudy
2612
-53.8%

rainyRainy
7751
-33.7%

snowySnowy
1837
105.5%

mistyMisty
00
0%

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

+0.35 °C


Variation in annual rainfall

+28.19 %


Change in average humidity

-4.95 %


PM2.5 levels surged by

+3.57 %


Heatwave changed by

+1 Day


Coldwave changed by

0 Day


Wind speeds changed by

+1.95 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 May

Joetsu Weather Forecast 30 Days (June - July 2026)
Joetsu, Niigata, Japan


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Thu. 4, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon22°/15°

Humidity Icon80%

Wind Icon16.2km/h
Fri. 5, Jun.
sunnySunny

Temperature Icon26°/15°

Humidity Icon69%

Wind Icon15.1km/h
Sat. 6, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon22°/16°

Humidity Icon83%

Wind Icon11.5km/h
Sun. 7, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon23°/16°

Humidity Icon83%

Wind Icon15.5km/h
Mon. 8, Jun.
moderate rainRain

Temperature Icon19°/16°

Humidity Icon94%

Wind Icon22.7km/h
Tue. 9, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon20°/15°

Humidity Icon79%

Wind Icon19.4km/h
Wed. 10, Jun.
sunnySunny

Temperature Icon21°/12°

Humidity Icon74%

Wind Icon14.8km/h
Thu. 11, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon22°/15°

Humidity Icon72%

Wind Icon10.1km/h
Fri. 12, Jun.
patchy rain possiblePatchy rain nearby

Temperature Icon21°/14°

Humidity Icon77%

Wind Icon11.5km/h
Sat. 13, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon24°/17°

Humidity Icon80%

Wind Icon12.2km/h
Sun. 14, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon24°/17°

Humidity Icon82%

Wind Icon13.7km/h
Mon. 15, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon25°/17°

Humidity Icon79%

Wind Icon13km/h
Tue. 16, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon24°/17°

Humidity Icon83%

Wind Icon16.2km/h
Wed. 17, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon25°/17°

Humidity Icon81%

Wind Icon13.7km/h
Thu. 18, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon25°/17°

Humidity Icon80%

Wind Icon10.4km/h
Fri. 19, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon25°/17°

Humidity Icon81%

Wind Icon12.2km/h
Sat. 20, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/17°

Humidity Icon79%

Wind Icon12.6km/h
Sun. 21, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/18°

Humidity Icon81%

Wind Icon12.6km/h
Mon. 22, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon25°/18°

Humidity Icon81%

Wind Icon12.6km/h
Tue. 23, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon24°/18°

Humidity Icon84%

Wind Icon13km/h
Wed. 24, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/18°

Humidity Icon81%

Wind Icon14km/h
Thu. 25, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/18°

Humidity Icon81%

Wind Icon13km/h
Fri. 26, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/18°

Humidity Icon81%

Wind Icon13km/h
Sat. 27, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon27°/19°

Humidity Icon81%

Wind Icon12.6km/h
Sun. 28, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/19°

Humidity Icon85%

Wind Icon12.6km/h
Mon. 29, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon27°/19°

Humidity Icon81%

Wind Icon11.5km/h
Tue. 30, Jun.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon27°/20°

Humidity Icon83%

Wind Icon12.6km/h
Wed. 1, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon27°/20°

Humidity Icon86%

Wind Icon13km/h
Thu. 2, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon28°/20°

Humidity Icon83%

Wind Icon12.6km/h
Fri. 3, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon28°/20°

Humidity Icon83%

Wind Icon13.3km/h
Sat. 4, Jul.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon26°/20°

Humidity Icon87%

Wind Icon12.6km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 2, Jul.

28°C


Low will be onWed. 10, Jun.

12°C

HumidityHumidity

High will be onMon. 8, Jun.

94%


Low will be onFri. 5, Jun.

69%

Wind SpeedWind Speed

High will be onMon. 8, Jun.

22.7km/h


Low will be onThu. 11, Jun.

10.1km/h

PrecipitationPrecipitation

High will be onSat. 4, Jul.

20.7mm


Low will be onWed. 10, Jun.

0.03mm

Ultraviolet IndexUV

High will be onFri. 5, Jun.

9.8


Low will be onMon. 8, Jun.

4