Omachi, Nagano, Japan Climate Change Severity

43
High
The current climate change severity in Omachi is High, with a 6.6% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to May (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Omachi 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), Omachi temperature has changed by around -17.5%, 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
2125
19.04%
cloudyCloudy
299
-68.9%
rainyRainy
6560
-7.6%
snowySnowy
2244
100%
mistyMisty
01
100%

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

Climate Change Indicators:

Over the past 16 years, Omachi has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). While the score remains High, certain factors have improved over time. 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, Omachi experienced significant changes:

Temperature change of

-0.88 °C

Variation in annual rainfall

+14.57 %

Change in average humidity

-4.77 %

PM2.5 levels surged by

+23.75 %

Heatwave changed by

-3 Days

Coldwave changed by

-1 Day

Wind speeds changed by

-2.8 km/h

These indicators show improvement in key parametes of climate, but Omachi remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Omachi Weather Forecast 30 Days (June - July 2026)
Omachi, Nagano, Japan

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Fri. 5, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/7°
Humidity Icon79%
Wind Icon8.6km/h
Sat. 6, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/8°
Humidity Icon87%
Wind Icon5.4km/h
Sun. 7, Jun.
moderate rainRain
Temperature Icon18°/8°
Humidity Icon93%
Wind Icon7.6km/h
Mon. 8, Jun.
moderate rainRain
Temperature Icon14°/11°
Humidity Icon98%
Wind Icon6.8km/h
Tue. 9, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/5°
Humidity Icon77%
Wind Icon8.6km/h
Wed. 10, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/4°
Humidity Icon66%
Wind Icon5.4km/h
Thu. 11, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/7°
Humidity Icon76%
Wind Icon6.1km/h
Fri. 12, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/6°
Humidity Icon78%
Wind Icon6.8km/h
Sat. 13, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/13°
Humidity Icon80%
Wind Icon10.1km/h
Sun. 14, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/14°
Humidity Icon83%
Wind Icon10.4km/h
Mon. 15, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/14°
Humidity Icon81%
Wind Icon10.1km/h
Tue. 16, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/14°
Humidity Icon84%
Wind Icon10.8km/h
Wed. 17, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/14°
Humidity Icon79%
Wind Icon10.1km/h
Thu. 18, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/14°
Humidity Icon81%
Wind Icon9.4km/h
Fri. 19, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/14°
Humidity Icon82%
Wind Icon10.4km/h
Sat. 20, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/14°
Humidity Icon79%
Wind Icon10.1km/h
Sun. 21, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/15°
Humidity Icon81%
Wind Icon8.3km/h
Mon. 22, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/15°
Humidity Icon82%
Wind Icon9.4km/h
Tue. 23, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/15°
Humidity Icon84%
Wind Icon10.1km/h
Wed. 24, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/15°
Humidity Icon81%
Wind Icon10.8km/h
Thu. 25, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/15°
Humidity Icon81%
Wind Icon8.6km/h
Fri. 26, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/15°
Humidity Icon81%
Wind Icon10.8km/h
Sat. 27, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/16°
Humidity Icon81%
Wind Icon9.4km/h
Sun. 28, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/16°
Humidity Icon85%
Wind Icon9.7km/h
Mon. 29, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/16°
Humidity Icon81%
Wind Icon10.1km/h
Tue. 30, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/17°
Humidity Icon84%
Wind Icon10.1km/h
Wed. 1, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/17°
Humidity Icon86%
Wind Icon9.4km/h
Thu. 2, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon28°/17°
Humidity Icon83%
Wind Icon9.4km/h
Fri. 3, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon28°/18°
Humidity Icon84%
Wind Icon9.7km/h
Sat. 4, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/18°
Humidity Icon87%
Wind Icon9km/h
Sun. 5, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/17°
Humidity Icon87%
Wind Icon9km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 2, Jul.

28°C

Low will be onWed. 10, Jun.

4°C

HumidityHumidity

High will be onMon. 8, Jun.

98%

Low will be onWed. 10, Jun.

66%

Wind SpeedWind Speed

High will be onTue. 16, Jun.

10.8km/h

Low will be onSat. 6, Jun.

5.4km/h

PrecipitationPrecipitation

High will be onSat. 4, Jul.

21.4mm

Low will be onFri. 5, Jun.

0.3mm

Ultraviolet IndexUV

High will be onFri. 5, Jun.

10.4

Low will be onMon. 8, Jun.

3

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