# Climate Insights for Altai

*Source: [Airpult](https://airpult.com/climate/mn/altai/3581304590): Govĭ-Altay Aymag, Mongolia*

The climate in Altai is cold. The average annual temperature is 1°C and approximately 232mm of precipitation falls per year. July is the wettest month, receiving around 52mm of rainfall. Altai is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -20°C. Snowfall occurs from January to December, with around 57cm accumulating over the season.

## Key insights

- **Hottest month:** July (peak 23°C)
- **Coldest month:** January (low -20°C)
- **Wettest month:** July (52 mm)
- **Best time to visit:** June, July, August

## Monthly climate data

The table below shows monthly climate averages for Altai based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

| Month | Avg low (°C) | Avg high (°C) | Mean (°C) | Precip (mm) | Wind (km/h) | Snow (cm) |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| Jan | -20 | -12 | -16 | 3 | 7 | 3 |
| Feb | -17 | -8 | -13 | 4 | 7 | 4 |
| Mar | -10 | 1 | -4 | 10 | 10 | 9 |
| Apr | -2 | 8 | 3 | 17 | 11 | 11 |
| May | 4 | 14 | 9 | 28 | 12 | 9 |
| Jun | 10 | 21 | 16 | 39 | 10 | 0 |
| Jul | 12 | 23 | 18 | 52 | 10 | 0 |
| Aug | 10 | 20 | 15 | 40 | 9 | 0 |
| Sep (current) | 4 | 15 | 9 | 20 | 10 | 4 |
| Oct | -5 | 6 | 0 | 9 | 9 | 7 |
| Nov | -12 | -3 | -8 | 7 | 8 | 7 |
| Dec | -18 | -10 | -15 | 4 | 7 | 4 |

## Temperature

Altai has a wide annual temperature range, spanning 43°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 23°C with a mean of 18°C. January brings the harshest conditions, with lows dropping to -20°C and an average temperature of -16°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 9°C shift in average temperatures.

## Precipitation

Altai is a quite dry location, receiving approximately 232mm of precipitation annually, which averages out to around 19mm per month. The wettest month is July, averaging 52mm of rainfall. August and June also tend to see above-average precipitation. The driest month is January, with just 3mm. That's 49mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 57cm accumulating over the season. April typically sees the most snow at around 11cm.

## Wind

Altai is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 7km/h in winter, 11km/h in spring, 10km/h in summer, 9km/h in autumn.

## Seasons

Currently it is **summer** (astronomical) / **fall** (meteorological) in Altai.
Autumn begins September 23, 2026 (1 days from now).

| Season | Begins |
| --- | --- |
| Spring | March 20 |
| Summer | June 21 |
| Autumn | September 23 |
| Winter | December 21 |

It is currently summer in Altai, which began on June 21, 2026. Altai is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 23°C, while the coldest stretch bottoms out in January near -20°C. Autumn is next, beginning on September 23, 2026 (1 days from now).

### Spring

Temperatures range from -10 to 14°C. Rainfall is relatively light, with around 55mm over the season and a monthly average of 18mm. Winds are generally light, averaging 11km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

### Summer

Temperatures range from 10 to 23°C. Rainfall is relatively light, with around 131mm over the season and a monthly average of 44mm. Winds are generally light, averaging 10km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

### Autumn

Temperatures range from -12 to 15°C. Precipitation is minimal, with only around 36mm for the entire season. Expect around 18cm of snow accumulation during this period. Winds are generally light, averaging 9km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

### Winter

Temperatures range from -20 to -8°C. Precipitation is minimal, with only around 10mm for the entire season. Expect around 10cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. Heavy layering and insulated outerwear are essential. Exposed skin should be minimised outdoors.

## Best time to visit

Recommended months: June, July, August.

The best time to visit Altai is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 44mm per month. By contrast, January can be quite cold with temperatures dropping to -20°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.