Surgut weather in April
In April, Surgut sees average daytime highs of 2°C and overnight lows near -6°C, with 36 mm of precipitation across 8.9 wet days and about 14.3 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.
Highs climb over the month, from about -0°C in the first days to 5°C by the end. The sky is clear or mostly clear about 17% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 54 min at the start of April to 15 h 42 min by month's end. Set against the rest of the year, April is Surgut's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Surgut's year-round climate.
- Daytime high
- 2°
- 6th warmest
- Overnight low
- -6°
- 6th coldest
- Precipitation
- 36 mm
- 8.9 wet days
- Daylight
- 14 h 18 min
- 4:57 AM – 7:16 PM
- Cloud cover
- 72%
- 3rd clearest
- Wind
- 16 km/h
- 2nd windiest
- Solar energy
- 4.24 kWh/m²
- Travel score
- 0.0
- out of 10
Surgut is city in Russia.
- Density
- 849/km²
- people per km²
- Founded
- 1594
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about -0°C in the first days to 5°C by the end.
A typical April day in Surgut reaches about 2°C in the afternoon and slips back to -6°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 10°C. Set against its neighbours, April runs about 8°C warmer than March and about 8°C cooler than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | -1 | -1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 |
| Avg low (°C) | -10 | -9 | -9 | -9 | -9 | -8 | -8 | -8 | -8 | -7 | -7 | -7 | -6 | -6 | -6 | -6 | -6 | -5 | -5 | -5 | -5 | -5 | -4 | -4 | -4 | -4 | -4 | -3 | -3 | -3 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | -1 | -10 |
| 2 | -1 | -9 |
| 3 | 0 | -9 |
| 4 | 0 | -9 |
| 5 | 0 | -9 |
| 6 | 0 | -8 |
| 7 | 1 | -8 |
| 8 | 1 | -8 |
| 9 | 1 | -8 |
| 10 | 1 | -7 |
| 11 | 2 | -7 |
| 12 | 2 | -7 |
| 13 | 2 | -6 |
| 14 | 2 | -6 |
| 15 | 2 | -6 |
| 16 | 3 | -6 |
| 17 | 3 | -6 |
| 18 | 3 | -5 |
| 19 | 3 | -5 |
| 20 | 4 | -5 |
| 21 | 4 | -5 |
| 22 | 4 | -5 |
| 23 | 4 | -4 |
| 24 | 4 | -4 |
| 25 | 5 | -4 |
| 26 | 5 | -4 |
| 27 | 5 | -4 |
| 28 | 5 | -3 |
| 29 | 5 | -3 |
| 30 | 6 | -3 |
How April really feels in Surgut
Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 30 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in April is cold — wind chill drags the overnight "feels like" below the raw low.
Surgut weather by month
How April compares with the rest of the year at a glance. April is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -17° / -23° | 20 | 6.7 | 8.8 | 6 | 0.0 |
| Feb | -14° / -21° | 18 | 5.9 | 7.9 | 8.4 | 0.0 |
| Mar | -5° / -14° | 27 | 7.8 | 9.2 | 11.3 | 0.0 |
| Apr | 2° / -6° | 36 | 8.9 | 6.4 | 14.3 | 0.0 |
| May | 11° / 2° | 51 | 11 | 2.5 | 17.1 | 2.4 |
| Jun | 19° / 10° | 73 | 12.9 | 0.1 | 18.8 | 5.4 |
| Jul | 22° / 13° | 69 | 11.1 | 0 | 18.1 | 6.3 |
| Aug | 18° / 10° | 98 | 14.8 | 0.1 | 15.6 | 4.9 |
| Sep | 11° / 4° | 62 | 11.7 | 1 | 12.6 | 2.4 |
| Oct | 2° / -3° | 48 | 12.5 | 8.3 | 9.6 | 0.1 |
| Nov | -9° / -15° | 35 | 9.9 | 11.5 | 6.9 | 0.0 |
| Dec | -15° / -21° | 26 | 8.3 | 11.4 | 5.2 | 0.0 |
Cloud cover in April
The sky is clear or mostly clear about 17% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 11% of April, with mostly cloudy or overcast conditions the remaining 72%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 31 | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 32 | 31 | 31 | 30 | 31 | 30 | 29 | 29 | 29 | 27 | 27 | 27 | 27 | 26 | 24 | 24 | 24 | 24 | 23 | 24 | 23 | 23 |
| Cloudier (%) | 69 | 68 | 68 | 68 | 67 | 68 | 68 | 68 | 68 | 69 | 69 | 70 | 69 | 70 | 71 | 71 | 71 | 73 | 73 | 73 | 73 | 74 | 76 | 76 | 76 | 76 | 77 | 76 | 77 | 77 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 31 | 69 |
| 2 | 32 | 68 |
| 3 | 32 | 68 |
| 4 | 32 | 68 |
| 5 | 33 | 67 |
| 6 | 32 | 68 |
| 7 | 32 | 68 |
| 8 | 32 | 68 |
| 9 | 32 | 68 |
| 10 | 31 | 69 |
| 11 | 31 | 69 |
| 12 | 30 | 70 |
| 13 | 31 | 69 |
| 14 | 30 | 70 |
| 15 | 29 | 71 |
| 16 | 29 | 71 |
| 17 | 29 | 71 |
| 18 | 27 | 73 |
| 19 | 27 | 73 |
| 20 | 27 | 73 |
| 21 | 27 | 73 |
| 22 | 26 | 74 |
| 23 | 24 | 76 |
| 24 | 24 | 76 |
| 25 | 24 | 76 |
| 26 | 24 | 76 |
| 27 | 23 | 77 |
| 28 | 24 | 76 |
| 29 | 23 | 77 |
| 30 | 23 | 77 |
Chance of precipitation in April
Surgut gets around 36 mm of rain and snow over 8.9 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 29% and peaks near 31% on the wettest days, and about 6 days bring snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Snow chance (%) | 30 | 29 | 29 | 28 | 28 | 27 | 26 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 28 | 30 |
| 2 | 28 | 29 |
| 3 | 28 | 29 |
| 4 | 28 | 28 |
| 5 | 28 | 28 |
| 6 | 28 | 27 |
| 7 | 28 | 26 |
| 8 | 28 | 26 |
| 9 | 28 | 25 |
| 10 | 28 | 24 |
| 11 | 28 | 23 |
| 12 | 28 | 22 |
| 13 | 28 | 21 |
| 14 | 28 | 20 |
| 15 | 29 | 19 |
| 16 | 29 | 19 |
| 17 | 29 | 18 |
| 18 | 30 | 18 |
| 19 | 30 | 17 |
| 20 | 30 | 17 |
| 21 | 31 | 17 |
| 22 | 31 | 17 |
| 23 | 31 | 17 |
| 24 | 31 | 16 |
| 25 | 31 | 16 |
| 26 | 31 | 16 |
| 27 | 31 | 16 |
| 28 | 31 | 16 |
| 29 | 31 | 16 |
| 30 | 31 | 16 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
| 29 | 100 |
| 30 | 100 |
Wind in April
Winds average 16 km/h in April.
Across April, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 16 | light breeze |
| 2 | 16 | light breeze |
| 3 | 16 | light breeze |
| 4 | 16 | light breeze |
| 5 | 16 | light breeze |
| 6 | 16 | light breeze |
| 7 | 16 | light breeze |
| 8 | 16 | light breeze |
| 9 | 16 | light breeze |
| 10 | 16 | light breeze |
| 11 | 16 | light breeze |
| 12 | 16 | light breeze |
| 13 | 16 | light breeze |
| 14 | 16 | light breeze |
| 15 | 16 | light breeze |
| 16 | 16 | light breeze |
| 17 | 16 | light breeze |
| 18 | 16 | light breeze |
| 19 | 16 | light breeze |
| 20 | 15 | light breeze |
| 21 | 15 | light breeze |
| 22 | 15 | light breeze |
| 23 | 15 | light breeze |
| 24 | 15 | light breeze |
| 25 | 15 | light breeze |
| 26 | 15 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
Sunrise & sunset in April
Daylight runs from about 12 h 54 min at the start of April to 15 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 168 minutes over April. Sunrise moves from 5:45 AM to 4:14 AM, and sunset from 6:37 PM to 7:53 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.9 | 13.0 | 13.1 | 13.2 | 13.2 | 13.3 | 13.4 | 13.5 | 13.6 | 13.7 | 13.8 | 13.9 | 14.0 | 14.1 | 14.2 | 14.3 | 14.4 | 14.5 | 14.6 | 14.7 | 14.8 | 14.9 | 15.0 | 15.1 | 15.2 | 15.3 | 15.4 | 15.5 | 15.6 | 15.7 |
| Sunrise (AM) | 5:45 | 5:42 | 5:39 | 5:35 | 5:32 | 5:29 | 5:26 | 5:23 | 5:19 | 5:16 | 5:13 | 5:10 | 5:06 | 5:03 | 5:00 | 4:57 | 4:54 | 4:51 | 4:47 | 4:44 | 4:41 | 4:38 | 4:35 | 4:32 | 4:29 | 4:26 | 4:23 | 4:20 | 4:17 | 4:14 |
| Sunset (PM) | 6:37 | 6:39 | 6:42 | 6:45 | 6:47 | 6:50 | 6:52 | 6:55 | 6:58 | 7:00 | 7:03 | 7:06 | 7:08 | 7:11 | 7:14 | 7:16 | 7:19 | 7:21 | 7:24 | 7:27 | 7:29 | 7:32 | 7:35 | 7:37 | 7:40 | 7:43 | 7:45 | 7:48 | 7:51 | 7:53 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 5:45 | 6:37 |
| 2 | 13.0 | 5:42 | 6:39 |
| 3 | 13.1 | 5:39 | 6:42 |
| 4 | 13.2 | 5:35 | 6:45 |
| 5 | 13.2 | 5:32 | 6:47 |
| 6 | 13.3 | 5:29 | 6:50 |
| 7 | 13.4 | 5:26 | 6:52 |
| 8 | 13.5 | 5:23 | 6:55 |
| 9 | 13.6 | 5:19 | 6:58 |
| 10 | 13.7 | 5:16 | 7:00 |
| 11 | 13.8 | 5:13 | 7:03 |
| 12 | 13.9 | 5:10 | 7:06 |
| 13 | 14.0 | 5:06 | 7:08 |
| 14 | 14.1 | 5:03 | 7:11 |
| 15 | 14.2 | 5:00 | 7:14 |
| 16 | 14.3 | 4:57 | 7:16 |
| 17 | 14.4 | 4:54 | 7:19 |
| 18 | 14.5 | 4:51 | 7:21 |
| 19 | 14.6 | 4:47 | 7:24 |
| 20 | 14.7 | 4:44 | 7:27 |
| 21 | 14.8 | 4:41 | 7:29 |
| 22 | 14.9 | 4:38 | 7:32 |
| 23 | 15.0 | 4:35 | 7:35 |
| 24 | 15.1 | 4:32 | 7:37 |
| 25 | 15.2 | 4:29 | 7:40 |
| 26 | 15.3 | 4:26 | 7:43 |
| 27 | 15.4 | 4:23 | 7:45 |
| 28 | 15.5 | 4:20 | 7:48 |
| 29 | 15.6 | 4:17 | 7:51 |
| 30 | 15.7 | 4:14 | 7:53 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.24 kWh/m².
For context, solar energy here swings from a low near 0.17 kWh/m² to a high of 5.32 kWh/m² in June across the year — April's 4.24 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.6 | 3.6 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.1 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.6 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.6 | Moderate |
| 2 | 3.6 | Moderate |
| 3 | 3.7 | Moderate |
| 4 | 3.8 | Moderate |
| 5 | 3.8 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 3.9 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.1 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.2 | Bright |
| 15 | 4.3 | Bright |
| 16 | 4.3 | Bright |
| 17 | 4.3 | Bright |
| 18 | 4.3 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.4 | Bright |
| 21 | 4.4 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.5 | Bright |
| 24 | 4.5 | Bright |
| 25 | 4.5 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.6 | Bright |
| 28 | 4.6 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
Hazard calendar for Surgut
None of Surgut's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Surgut's rainy season runs May–October, when most of the year's rain falls.
Is April a good time to visit Surgut?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Surgut.
What to pack for Surgut in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Surgut sees daytime highs around 2°C and nights near -6°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.
UV index in Surgut in April
Clear-sky midday UV in April peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Surgut peaks around June 20 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 20 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 5 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 1 | 2 | 3 | 4 | 5 | 4 | 3 | 2 | 1 | 0 | 0 |
| Level | Low | Low | Low | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 1 | Low |
| Mar | 2 | Low |
| Apr | 3 | Moderate |
| May | 4 | Moderate |
| Jun | 5 | Moderate |
| Jul | 4 | Moderate |
| Aug | 3 | Moderate |
| Sep | 2 | Moderate |
| Oct | 1 | Low |
| Nov | 0 | Low |
| Dec | 0 | Low |
Where is Surgut?
Surgut sits at 61.3°N, 73.4°E, 43 m above sea level, in Russia. The nearest listed city is Belyy Yar, 9.0 km away.
Topography around Surgut
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Surgut.
Within 3 km, the terrain around Surgut has only modest variations in elevation — a maximum elevation change of 44 m around an average of 46 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 78 m; within 80 km, only modest variations in elevation — a maximum elevation change of 82 m.
The land around Surgut is covered by artificial surfaces (74%) within 3 km, trees (42%) within 16 km, and trees (38%) and wetland (28%) within 80 km.
Russia travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 32% of US
- price level, 2025
- GDP per capita
- $17,547
- 2025
- Happiness
- 5.8 / 10
- World Happiness, 2025
- Safe drinking water
- 76%
- of population, 2024
- Homicide rate
- 6.8
- per 100k, 2021
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 521
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Surgut (61.2576°, 73.4177°, elevation 43 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).