Ayan, Russia experiences average highs of 0°C (32°F) and lows of -5°C (23°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Average highs have warmed by 1.1°C (2.0°F) across the available records.
Ayan, Russia Weather & Climate 2026
Monthly climate averages for Ayan, Russia. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
3.4/10
Best: July, August
UV Index
3
Low
Temperature 0°C / -5°C
Feels Like -4°C / -10°C
Rainy Days 8
Rainfall 60 mm
Sunshine 8 h
Humidity 75%
Wind Speed 20 km/h
Dew Point -6°C
Snow Days 7 days
Frost Days 26 days
Hottest Month
17°C
July
Avg Low 13°C
Rain 10 days
Coldest Month
-24°C
January
Avg High -19°C
Rain 3 days
Driest Month
2 days
February
Avg High -16°C
Avg Low -21°C
Windiest Month
27 km/h
December (Gusts 54)
Sea Temperature
-2°C – 15°C
Warmest water: August (
14.9°C
)
Worst Time to Visit
Consider avoiding May, October, November, December due to very cold temperatures.
Sun Position
Sunrise 03:57
Daylight 17.7h
Sunset 21:39
Live conditions —
Ayan on the map · live conditions
Ayan, Russia
- Continent
- Europe
- Country
- Russia
- City
- Ayan
- Population
- 1.3K
- Coordinates
- 56.46°, 138.18°
Seasonal Breakdown
Spring
Mar–May
Avg High -1°C
Avg Low -6°C
Rain 8 days/mo
Summer
Jun–Aug
Avg High 15°C
Avg Low 11°C
Rain 10 days/mo
2/3 best months
Autumn
Sep–Nov
Avg High 2°C
Avg Low -2°C
Rain 8 days/mo
Winter
Dec–Feb
Avg High -18°C
Avg Low -23°C
Rain 4 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -19°C / -24°C . Feb: -16°C / -21°C . Mar: -7°C / -13°C . Apr: 0°C / -5°C . May: 5°C / 1°C . Jun: 12°C / 7°C . Jul: 17°C / 13°C . Aug: 17°C / 13°C . Sep: 13°C / 8°C . Oct: 3°C / -1°C . Nov: -10°C / -14°C . Dec: -19°C / -23°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 20 mm. Feb: 8 mm. Mar: 29 mm. Apr: 58 mm. May: 105 mm. Jun: 51 mm. Jul: 82 mm. Aug: 120 mm. Sep: 111 mm. Oct: 55 mm. Nov: 50 mm. Dec: 36 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 72%. Feb: 67%. Mar: 71%. Apr: 77%. May: 81%. Jun: 85%. Jul: 84%. Aug: 83%. Sep: 74%. Oct: 63%. Nov: 72%. Dec: 72%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 23 km/h . Feb: 22 km/h . Mar: 18 km/h . Apr: 18 km/h . May: 17 km/h . Jun: 14 km/h . Jul: 14 km/h . Aug: 16 km/h . Sep: 20 km/h . Oct: 23 km/h . Nov: 27 km/h . Dec: 27 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 7h. Mar: 9h. Apr: 10h. May: 10h. Jun: 11h. Jul: 10h. Aug: 9h. Sep: 8h. Oct: 7h. Nov: 5h. Dec: 3h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: -2°C . Feb: -2°C . Mar: -2°C . Apr: -1°C . May: 1°C . Jun: 7°C . Jul: 13°C . Aug: 15°C . Sep: 12°C . Oct: 7°C . Nov: 1°C . Dec: -2°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 3. Apr: UV 5. May: UV 5. Jun: UV 5. Jul: UV 5. Aug: UV 4. Sep: UV 3. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow Days Snowfall
Snow Days: Jan: 5 days. Feb: 5 days. Mar: 9 days. Apr: 13 days. May: 12 days. Jun: 1 days. Jul: 0 days. Aug: 0 days. Sep: 1 days. Oct: 8 days. Nov: 9 days. Dec: 10 days.
Climate Trends
Average highs have warmed by 1.1°C (2.0°F) across the available records. Average rainfall is trending wetter by about 15 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 16°C | Jul · 17°C |
| Coldest month | Dec 2025 · -24°C | Jan · -24°C |
| Wettest month | May 2025 · 173 mm | Aug · 120 mm |
| Windiest month | Dec 2025 · 32 km/h | Dec · 27 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Poor June
Fair July best
Good August best
Good September
Fair October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -19°C / -24°C | -26°C / -31°C | 3days (20 mm) Excellent | 4.7h Fair | 72% Muggy | 0.9 Low | Poor | View Details |
| February | -16°C / -21°C | -23°C / -28°C | 2days (8 mm) Excellent | 6.7h Fair | 67% Muggy | 1.8 Low | Poor | View Details |
| March | -7°C / -13°C | -12°C / -19°C | 4days (29 mm) Good | 9h Good | 71% Muggy | 3.2 Moderate | Poor | View Details |
| April | 0°C / -5°C | -4°C / -10°C | 9days (58 mm) Wet | 9.6h Good | 77% Humid | 4.6 Moderate | Poor | View Details |
| May | 5°C / 1°C | 2°C / -3°C | 12days (105 mm) Wet | 9.6h Good | 81% Humid | 4.7 Moderate | Poor | View Details |
| June | 12°C / 7°C | 10°C / 4°C | 8days (51 mm) Wet | 10.7h Excellent | 85% Humid | 5 Moderate | Fair | View Details |
| July best | 17°C / 13°C | 17°C / 12°C | 10days (82 mm) Wet | 10.2h Excellent | 84% Humid | 4.8 Moderate | Good | View Details |
| August best | 17°C / 13°C | 16°C / 11°C | 13days (120 mm) Wet | 8.8h Good | 83% Humid | 4.2 Moderate | Good | View Details |
| September | 13°C / 8°C | 10°C / 5°C | 10days (111 mm) Wet | 8.1h Good | 74% Muggy | 3.2 Moderate | Fair | View Details |
| October | 3°C / -1°C | -2°C / -7°C | 7days (55 mm) Good | 7h Good | 63% Muggy | 2 Low | Poor | View Details |
| November | -10°C / -14°C | -16°C / -21°C | 6days (50 mm) Good | 4.9h Fair | 72% Muggy | 1 Low | Poor | View Details |
| December | -19°C / -23°C | -26°C / -31°C | 7days (36 mm) Good | 3.4h Poor | 72% Muggy | 0.6 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Ayan are July, August, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Ayan, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Ayan is July, with average daytime highs of 17°C (63°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Ayan is January, with average overnight lows of -24°C (-11°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Ayan is August, averaging 120mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Ayan runs through August, May, July, September, with the heaviest rainfall in August. Based on 10-year averages for Ayan.
Ayan receives approximately 93 sunshine hours per year. The sunniest month is June with around 11 hours. Based on climate data for Ayan.
The least favorable months to visit Ayan are May, October, November, December, primarily due to very cold temperatures. For the best conditions, consider July, August instead.
The annual average UV index in Ayan is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Ayan is 75%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 4°C (39°F), which most swimmers will find too cold without a wetsuit.
Yes, Ayan receives snow. Months with snowfall average 7 snow days and 23 cm (9 in) of accumulation, with about 26 frost days during winter.
Average wind speeds in Ayan are 20 km/h (12 mph). The windiest month is December with peak winds reaching 27 km/h (17 mph) (gusts up to 54 km/h / 33 mph).
Ayan averages 3 clear-sky days per month with overall cloud cover around 66%. The clearest skies occur in March.
The annual average dew point in Ayan is -6°C (21°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Ayan has a koppen_Dwc climate, classified as Dwc under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Ayan ranges from -10°C (14°F) to -4°C (25°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
June is not the best time to visit Ayan, with a climate score of 5.6/10. Consider visiting during July, August instead for better conditions.
For June in Ayan, pack Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. With average highs of 12°C (53°F) and 8 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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