Udachny weather in April

In April, Udachny sees average daytime highs of -3°C and overnight lows near -14°C, with 20 mm of precipitation across 5.6 wet days and about 14.9 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about -7°C in the first days to 0°C by the end. The sky is clear or mostly clear about 15% of the time in April, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of April to 16 h 42 min by month's end. Set against the rest of the year, April is Udachny's 5th-clearest and 2nd-windiest month. For the whole year in context, see Udachny's year-round climate.

Daytime high
-3°
6th warmest
Overnight low
-14°
6th coldest
Precipitation
20 mm
5.6 wet days
Daylight
14 h 54 min
6:02 AM – 8:59 PM
Cloud cover
75%
5th clearest
Wind
11 km/h
2nd windiest
Solar energy
4.12 kWh/m²
Travel score
0.0
out of 10

Udachny is town in Mirninsky District, Sakha Republic, Russia.

Density
7,633/km²
people per km²
Founded
1967

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about -7°C in the first days to 0°C by the end.

A typical April day in Udachny reaches about -3°C in the afternoon and slips back to -14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between -11°C and 4°C. Set against its neighbours, April runs about 12°C warmer than March and about 9°C cooler than May.

-30°-20°-10°10°151015202530
Avg high (°C)Avg low (°C)
1-7-19
2-7-19
3-7-19
4-6-18
5-6-18
6-6-17
7-5-17
8-5-17
9-5-16
10-4-16
11-4-16
12-4-15
13-3-15
14-3-15
15-3-14
16-3-14
17-2-14
18-2-13
19-2-13
20-1-13
21-1-12
22-1-12
23-1-12
240-11
250-11
260-11
270-10
280-10
291-10
301-9

How April really feels in Udachny

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.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
30
30 feel bitter (≤ -10°C)

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Udachny 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-30° / -37°30.92.13.60.0
Feb-26° / -34°30.827.40.0
Mar-15° / -26°62.13.711.10.0
Apr-3° / -14°205.66.714.90.0
May / -4°429.67.118.80.7
Jun16° / 5410.8122.44.7
Jul20° / 10°599.3020.66.2
Aug16° / 5610.20.316.64.7
Sep / -1°419.44.412.80.8
Oct-7° / -14°226.1890.0
Nov-22° / -29°82.54.75.10.0
Dec-29° / -36°31.22.41.60.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 10% of April, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12971
22971
32872
42872
52971
62971
72971
82872
92872
102872
112872
122773
132773
142773
152773
162773
172773
182575
192575
202476
212476
222377
232278
242179
252179
262080
271882
281882
291882
301882

Chance of precipitation in April

Any precipitationSnow

Udachny gets around 20 mm of rain and snow over 5.6 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 18% and peaks near 24% on the wettest days, and about 7 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)Snow chance (%)
11217
21317
31418
41419
51519
61520
71620
81620
91620
101620
111620
121620
131620
141620
151721
161721
171821
181822
191922
201922
212023
222023
232124
242224
252225
262325
272326
282426
292426
302426

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1710calm
1810calm
1910calm
2010calm
2110calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 13 h 06 min at the start of April to 16 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 216 minutes over April. Sunrise moves from 7:03 AM to 5:06 AM, and sunset from 8:07 PM to 9:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.17:038:07
213.26:598:11
313.36:558:14
413.56:518:18
513.66:478:21
613.76:438:24
713.86:388:28
813.96:348:31
914.16:308:35
1014.26:268:38
1114.36:228:42
1214.46:188:45
1314.66:148:49
1414.76:108:52
1514.86:068:55
1614.96:028:59
1715.15:589:02
1815.25:549:06
1915.35:509:10
2015.45:469:13
2115.65:429:17
2215.75:389:20
2315.85:349:24
2416.05:309:27
2516.15:269:31
2616.25:229:35
2716.35:189:38
2816.55:149:42
2916.65:109:46
3016.75:069:49

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.12 kWh/m².

For context, solar energy here swings from a low near 0.01 kWh/m² to a high of 5.52 kWh/m² in June across the year — April's 4.12 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.4Moderate
43.5Moderate
53.5Moderate
63.6Moderate
73.6Moderate
83.7Moderate
93.8Moderate
103.8Moderate
113.9Moderate
124.0Moderate
134.0Bright
144.1Bright
154.1Bright
164.2Bright
174.2Bright
184.3Bright
194.3Bright
204.4Bright
214.4Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.7Bright
274.7Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in April

Is April a good time to visit Udachny?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

April is a weaker month for outdoor sightseeing in Udachny.

What to pack for Udachny in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Udachny sees daytime highs around -3°C and nights near -14°C. Pack a warm layer and a heavy coat. About 6 days see rain.

a warm layera heavy coat

UV index in Udachny in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Udachny peaks around July 16 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 16UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul5Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low

Air quality in Udachny in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Udachny is worst in August — around 16 µg/m³ PM2.5 (moderate), about 32.8× the cleanest month (December, 1 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1216 µg/m³Dec 181 µg/m³
PM2.5 (µg/m³)Level
Jan1Good
Feb1Good
Mar3Good
Apr4Good
May5Good
Jun8Good
Jul14Moderate
Aug16Moderate
Sep6Good
Oct2Good
Nov1Good
Dec1Good
Location & terrain

Where is Udachny?

Udachny sits at 66.4°N, 112.4°E, 315 m above sea level, in Russia. The nearest listed city is Aykhal, 69 km away.

LenskBodayboYakutskTalnakhNorilskUst’-Ilimsk

Topography around Udachny

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Udachny.

Within 3 km, the terrain around Udachny has significant variations in elevation — a maximum elevation change of 253 m around an average of 333 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 386 m; within 80 km, significant variations in elevation — a maximum elevation change of 593 m.

The land around Udachny is covered by trees (68%) within 3 km, trees (92%) within 16 km, and trees (97%) within 80 km.

3 km
253 m
16 km
386 m
80 km
593 m
treesgrasslandbare terrainwatermoss and lichen
April weather nearby: Aykhal 69 km · Mirny 439 km · Lensk 647 km · Bodaybo 958 km · Yakutsk 965 km · Talnakh 1,050 km · Norilsk 1,055 km · Ust’-Ilimsk 1,062 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
other Christian 2%

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 Udachny (66.4299°, 112.4021°, elevation 315 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).