Vuosaari weather in August

In August, Vuosaari sees average daytime highs of 20°C and overnight lows near 13°C, with 70 mm of rain across 12.2 wet days and about 15.4 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 18°C by the end. The sky is clear or mostly clear about 20% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 42 min at the start of August to 14 hours by month's end. Set against the rest of the year, August is Vuosaari's 4th-clearest and 11th-windiest month. For the whole year in context, see Vuosaari's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
70 mm
12.2 wet days
Daylight
15 h 24 min
4:41 AM – 8:06 PM
Cloud cover
64%
4th clearest
Wind
13 km/h
11th windiest
Solar energy
4.3 kWh/m²
Travel score
6.0
out of 10

Vuosaari is city district and the 54th neighbourhood of Helsinki, Finland.

Density
2,533/km²
people per km²

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 22°C in the first days to 18°C by the end.

A typical August day in Vuosaari reaches about 20°C in the afternoon and slips back to 13°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, August runs about 1°C cooler than July and about 5°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12214
22214
32214
42214
52214
62214
72214
82113
92113
102113
112113
122113
132113
142113
152013
162013
172013
182012
192012
202012
212012
221912
231912
241912
251912
261912
271911
281811
291811
301811
311811

How August really feels in Vuosaari

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.

Vuosaari weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -6°4710.89.66.30.0
Feb-2° / -7°399.18.78.60.0
Mar / -5°368.66.911.30.0
Apr / 368.72.314.21.3
May14° / 438.70.116.84.3
Jun18° / 10°6911.6018.45.6
Jul22° / 14°6911.6017.76.3
Aug20° / 13°7012.2015.46.0
Sep15° / 5510.2012.64.4
Oct / 5811.20.79.71.5
Nov / 5811.64.77.10.0
Dec / -4°5411.98.95.60.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34654
44654
54555
64456
74456
84456
94357
104357
114357
124357
134258
144357
154357
164357
174159
184159
194159
204060
213961
223961
233862
243763
253664
263466
273367
283367
293367
303268
313169

Chance of precipitation in August

Any precipitation

Vuosaari gets around 70 mm of rain over 12.2 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
337
437
538
638
739
839
940
1040
1141
1241
1341
1441
1542
1641
1741
1841
1941
2041
2140
2240
2340
2439
2539
2638
2738
2838
2937
3037
3137

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 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14341143
24341143
34341133
44441132
54441132
64541122
74641121
84641111
94741111
104741101
114841101
124941101
13494191
14504191
15514180
16524080
17534070
18534070
19553960
20553960
21563860
22583750
23593650
24603550
25623440
26633340
27643240
28663130
29673030
30682930
31712720

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 14 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
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 42 min at the start of August to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 162 minutes over August. Sunrise moves from 4:05 AM to 5:18 AM, and sunset from 8:46 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.74:058:46
216.64:078:43
316.54:108:41
416.44:128:38
516.44:158:36
616.34:178:33
716.24:198:31
816.14:228:28
916.04:248:25
1015.94:278:23
1115.84:298:20
1215.84:328:17
1315.74:348:14
1415.64:368:11
1515.54:398:09
1615.44:418:06
1715.34:448:03
1815.24:468:00
1915.14:497:57
2015.04:517:54
2115.04:547:51
2214.94:567:48
2314.84:597:45
2414.75:017:42
2514.65:047:39
2614.55:067:36
2714.45:097:33
2814.35:117:30
2914.25:137:27
3014.15:167:24
3114.05:187:21

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.3 kWh/m².

For context, solar energy here swings from a low near 0.16 kWh/m² to a high of 5.82 kWh/m² in June across the year — August's 4.3 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.7Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.4Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.1Bright
204.0Bright
214.0Moderate
223.9Moderate
233.9Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.4Moderate
313.4Moderate
Planning a trip in August

Is August a good time to visit Vuosaari?

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

6.0
Sightseeing
2nd-best month of the year
3.2
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Vuosaari for sightseeing.

What to pack for Vuosaari in August

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

In August, Vuosaari sees daytime highs around 20°C and nights near 13°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Vuosaari in August

The nearest coast averages about 17°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 17°C and coldest in February near 1°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr2Bracing
May6Bracing
Jun11Bracing
Jul16Cool
Aug17Cool
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec4Bracing

UV index in Vuosaari in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vuosaari peaks around June 19 at about 5 (high) — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateModerateLowJun 19UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Vuosaari?

Vuosaari sits at 60.2°N, 25.1°E, 6 m above sea level, in Finland. The nearest listed city is Vartiokylä, 3.0 km away.

Topography around Vuosaari

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

Within 3 km, the terrain around Vuosaari has only modest variations in elevation — a maximum elevation change of 53 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 84 m; within 80 km, only modest variations in elevation — a maximum elevation change of 189 m.

The land around Vuosaari is covered by trees (40%), water (29%) and artificial surfaces (24%) within 3 km, water (47%) and trees (33%) within 16 km, and water (49%) and trees (39%) within 80 km.

3 km
53 m
16 km
84 m
80 km
189 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Vartiokylä 3.0 km · East Helsinki 3.0 km · Mellunkylä 4.0 km · Herttoniemi 6.0 km · Viikki 7.0 km · Laajasalo 7.0 km · Suurmetsä 8.0 km · Oulunkylä 10 km

Finland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$56,149
2025
Happiness
7.8 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 603
Religion
Lutheran 67%none 31%other 2%Greek Orthodox 1%

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 Vuosaari (60.2096°, 25.142°, elevation 6 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).