Onega weather in August

In August, Onega sees average daytime highs of 16°C and overnight lows near 11°C, with 78 mm of rain across 11.7 wet days and about 16 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 15°C by the end. The sky is clear or mostly clear about 17% of the time in August, and the air most often feels dry.

Daylight stretches from about 17 h 36 min at the start of August to 14 h 24 min by month's end. Set against the rest of the year, August is Onega's 4th-clearest and 10th-windiest month. For the whole year in context, see Onega's year-round climate.

Daytime high
16°
2nd warmest
Overnight low
11°
11th coldest
Rainfall
78 mm
11.7 wet days
Daylight
16 hours
4:31 AM – 8:33 PM
Cloud cover
68%
4th clearest
Wind
14 km/h
10th windiest
Solar energy
3.64 kWh/m²
Travel score
4.9
out of 10

Onega is town in Arkhangelsk Oblast, Russia.

Density
528/km²
people per km²
Founded
1137

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 15°C by the end.

A typical August day in Onega reaches about 16°C in the afternoon and slips back to 11°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 21°C. Set against its neighbours, August runs about 1°C cooler than July and about 5°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11813
21813
31813
41813
51813
61812
71712
81712
91712
101712
111712
121712
131712
141712
151712
161612
171611
181611
191611
201611
211611
221611
231511
241511
251511
261510
271510
281510
291510
301510
311410

How August really feels in Onega

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 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
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Onega weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-7° / -11°3710.113.150.0
Feb-7° / -11°278.510.580.0
Mar-3° / -8°308.49.711.20.0
Apr / -3°338.6514.60.0
May / 5210.2217.81.8
Jun14° / 5810.30.1204.0
Jul18° / 12°6511.2019.15.6
Aug16° / 11°7811.70164.9
Sep12° / 8213.70.212.72.7
Oct / 8115.24.59.30.3
Nov-1° / -4°5413.211.16.10.0
Dec-4° / -8°4612.414.340.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
33961
43961
53961
63862
73862
83664
93664
103565
113565
123466
133367
143367
153367
163367
173367
183367
193367
203367
213367
223268
233268
243169
253169
263169
273070
283070
293070
303070
312971

Chance of precipitation in August

Any precipitation

Onega gets around 78 mm of rain over 11.7 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
437
537
637
738
838
939
1039
1139
1239
1339
1439
1539
1639
1739
1839
1939
2038
2138
2238
2338
2437
2537
2637
2737
2837
2938
3038
3139

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1642691
2642691
3652681
4652681
5672571
6672571
7682561
8692461
9692461
10712351
11722251
12722251
13752140
14752140
15762040
16762040
17781930
18791830
19791830
20811720
21821620
22821620
23831520
24841510
25851410
26861310
27861310
28871210
29871210
30891100
31891100

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 17 h 36 min at the start of August to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 192 minutes over August. Sunrise moves from 3:45 AM to 5:16 AM, and sunset from 9:23 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
117.63:459:23
217.53:489:19
317.43:519:16
417.33:549:13
517.23:579:10
617.14:009:07
717.04:039:03
816.94:069:00
916.84:098:57
1016.74:128:53
1116.64:158:50
1216.54:188:46
1316.44:228:43
1416.34:258:40
1516.14:288:36
1616.04:318:33
1715.94:348:29
1815.84:378:26
1915.74:408:22
2015.64:438:19
2115.54:468:15
2215.44:498:12
2315.34:528:08
2415.24:558:05
2515.04:588:01
2614.95:017:57
2714.85:047:54
2814.75:077:50
2914.65:107:47
3014.55:137:43
3114.45:167:39

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.64 kWh/m².

For context, solar energy here swings from a low near 0.04 kWh/m² to a high of 5.61 kWh/m² in June across the year — August's 3.64 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.3Bright
54.3Bright
64.2Bright
74.1Bright
84.1Bright
94.0Bright
104.0Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.7Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.4Moderate
203.4Moderate
213.3Moderate
223.3Moderate
233.2Moderate
243.2Moderate
253.1Moderate
263.1Moderate
273.0Moderate
283.0Moderate
292.9Moderate
302.9Moderate
312.8Moderate
Planning a trip in August

Is August a good time to visit Onega?

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

4.9
Sightseeing
2nd-best month of the year
0.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Onega for sightseeing.

What to pack for Onega in August

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

In August, Onega sees daytime highs around 16°C and nights near 11°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Onega in August

The nearest coast averages about 13°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in August at about 13°C and coldest in February near -1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

-5°0°5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan-1Bracing
Feb-1Bracing
Mar-1Bracing
Apr0Bracing
May3Bracing
Jun6Bracing
Jul12Bracing
Aug13Bracing
Sep11Bracing
Oct6Bracing
Nov1Bracing
Dec-1Bracing

UV index in Onega in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Onega peaks around July 12 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 12UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul5Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Onega?

Onega sits at 63.9°N, 38.1°E, 21 m above sea level, in Russia. The nearest listed city is Severodvinsk, 111 km away.

Topography around Onega

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

Within 3 km, the terrain around Onega has only modest variations in elevation — a maximum elevation change of 111 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 163 m; within 80 km, significant variations in elevation — a maximum elevation change of 362 m.

The land around Onega is covered by trees (47%) and water (24%) within 3 km, trees (54%) and water (24%) within 16 km, and trees (60%) and water (21%) within 80 km.

3 km
111 m
16 km
163 m
80 km
362 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Severodvinsk 111 km · Yagry 113 km · Isakogorka 138 km · Arkhangel’sk 138 km · Novodvinsk 143 km · Mirnyy 169 km · Segezha 186 km · Medvezh’yegorsk 212 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 Onega (63.9057°, 38.0994°, elevation 21 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).