Olgii, Bayan Olgii, Mongolia Climate Change Severity

62
Very High
The current climate change severity in Olgii is Very High, with a 14.8% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Olgii Weather Condition Changes (Historic Vs 2025)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Olgii temperature has changed by around +18.6%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Aug. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
7456
-24.3%

cloudyCloudy
7568
-9.3%

rainyRainy
6947
-31.8%

snowySnowy
10
-100%

mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Olgii has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100


Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Olgii experienced significant changes:

Temperature change of

+0.5 °C


Variation in annual rainfall

-55.5 %


Change in average humidity

-7.2 %


PM2.5 levels surged by

-14.9 %


Heatwave changed by

-10 day(s)


Coldwave changed by

-4.6 day(s)


Wind speeds changed by

+8.3 km/h


These indicators show a dramatic increase in volatility and worsening conditions. Olgii's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Olgii Weather Forecast 30 Days (September - October 2025)
Olgii, Bayan Olgii, Mongolia


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Wed. 17, Sep.
patchy rain possiblePatchy rain nearby

Temperature Icon10°/3°

Humidity Icon58%

Wind Icon26km/h
Thu. 18, Sep.
sunnySunny

Temperature Icon11°/3°

Humidity Icon45%

Wind Icon14km/h
Fri. 19, Sep.
patchy rain possiblePatchy rain nearby

Temperature Icon12°/6°

Humidity Icon50%

Wind Icon21km/h
Sat. 20, Sep.
patchy rain possiblePatchy rain nearby

Temperature Icon10°/4°

Humidity Icon57%

Wind Icon31km/h
Sun. 21, Sep.
patchy rain possiblePatchy rain nearby

Temperature Icon8°/2°

Humidity Icon61%

Wind Icon21km/h
Mon. 22, Sep.
sunnySunny

Temperature Icon11°/3°

Humidity Icon49%

Wind Icon10km/h
Tue. 23, Sep.
sunnySunny

Temperature Icon12°/5°

Humidity Icon40%

Wind Icon10km/h
Wed. 24, Sep.
patchy rain possiblePatchy rain nearby

Temperature Icon9°/6°

Humidity Icon55%

Wind Icon29km/h
Thu. 25, Sep.
patchy rain possiblePatchy rain nearby

Temperature Icon5°/2°

Humidity Icon72%

Wind Icon18km/h
Fri. 26, Sep.
sunnySunny

Temperature Icon10°/2°

Humidity Icon51%

Wind Icon9km/h
Sat. 27, Sep.
sunnySunny

Temperature Icon13°/5°

Humidity Icon41%

Wind Icon21km/h
Sun. 28, Sep.
sunnySunny

Temperature Icon13°/4°

Humidity Icon49%

Wind Icon46km/h
Mon. 29, Sep.
partly cloudyPartly Cloudy

Temperature Icon11°/3°

Humidity Icon42%

Wind Icon20km/h
Tue. 30, Sep.
sunnySunny

Temperature Icon11°/4°

Humidity Icon51%

Wind Icon35km/h
Wed. 1, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon6°/0°

Humidity Icon52%

Wind Icon15km/h
Thu. 2, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon6°/0°

Humidity Icon50%

Wind Icon14km/h
Fri. 3, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon6°/-1°

Humidity Icon48%

Wind Icon15km/h
Sat. 4, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon6°/0°

Humidity Icon50%

Wind Icon16km/h
Sun. 5, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon6°/-1°

Humidity Icon46%

Wind Icon16km/h
Mon. 6, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon5°/-1°

Humidity Icon48%

Wind Icon16km/h
Tue. 7, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon4°/-2°

Humidity Icon49%

Wind Icon13km/h
Wed. 8, Oct.
patchy rain possiblePatchy rain possible

Temperature Icon4°/-2°

Humidity Icon50%

Wind Icon13km/h
Thu. 9, Oct.
light freezing rainLight freezing rain

Temperature Icon4°/-2°

Humidity Icon47%

Wind Icon13km/h
Fri. 10, Oct.
light freezing rainLight freezing rain

Temperature Icon3°/-2°

Humidity Icon47%

Wind Icon13km/h
Sat. 11, Oct.
light freezing rainLight freezing rain

Temperature Icon3°/-2°

Humidity Icon48%

Wind Icon13km/h
Sun. 12, Oct.
light freezing rainLight freezing rain

Temperature Icon3°/-3°

Humidity Icon50%

Wind Icon13km/h
Mon. 13, Oct.
sunnySunny

Temperature Icon3°/-3°

Humidity Icon51%

Wind Icon16km/h
Tue. 14, Oct.
light freezing rainLight freezing rain

Temperature Icon3°/-4°

Humidity Icon50%

Wind Icon15km/h
Wed. 15, Oct.
light freezing rainLight freezing rain

Temperature Icon2°/-4°

Humidity Icon49%

Wind Icon16km/h
Thu. 16, Oct.
light freezing rainLight freezing rain

Temperature Icon2°/-4°

Humidity Icon52%

Wind Icon16km/h
Fri. 17, Oct.
light freezing rainLight freezing rain

Temperature Icon3°/-3°

Humidity Icon52%

Wind Icon14km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 28, Sep.

13.2°C


Low will be onWed. 15, Oct.

-4.5°C

HumidityHumidity

High will be onThu. 25, Sep.

72%


Low will be onTue. 23, Sep.

40%

Wind SpeedWind Speed

High will be onSun. 28, Sep.

45.7km/h


Low will be onFri. 26, Sep.

9km/h

PrecipitationPrecipitation

High will be onFri. 19, Sep.

2.4mm


Low will be onTue. 30, Sep.

0.01mm

Ultraviolet IndexUV

High will be onMon. 22, Sep.

3


Low will be onFri. 19, Sep.

1