Kaarina weather in August

In August, Kaarina sees average daytime highs of 20°C and overnight lows near 11°C, with 80 mm of rain across 12.6 wet days and about 15.4 hours of daylight. It is the 2nd-warmest and 2nd-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 23% 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 h 06 min by month's end. Set against the rest of the year, August is Kaarina's 4th-clearest and 11th-windiest month. For the whole year in context, see Kaarina's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
11°
11th coldest
Rainfall
80 mm
12.6 wet days
Daylight
15 h 24 min
4:52 AM – 8:18 PM
Cloud cover
63%
4th clearest
Wind
11 km/h
11th windiest
Solar energy
4.26 kWh/m²
Travel score
6.0
out of 10

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 Kaarina reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°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)
12213
22213
32213
42213
52213
62212
72212
82112
92112
102112
112112
122112
132112
142112
152112
162011
172011
182011
192011
202011
212011
222011
231911
241911
251911
261910
271910
281910
291810
301810
311810

How August really feels in Kaarina

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.

Kaarina weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -6°4910.18.66.30.0
Feb-2° / -7°378.57.28.60.0
Mar / -5°368.25.711.30.0
Apr / -0°3381.814.21.7
May15° / 418.90.116.84.6
Jun19° / 6810.8018.55.9
Jul22° / 12°8512.3017.86.2
Aug20° / 11°8012.6015.46.0
Sep15° / 589.5012.64.5
Oct / 5910.40.69.71.6
Nov / -0°5510.93.47.10.0
Dec / -4°5611.66.85.50.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44753
54753
64753
74753
84654
94456
104555
114555
124456
134456
144456
154555
164456
174357
184357
194357
204357
214258
224258
234159
244060
253961
263961
273763
283763
293664
303664
313664

Chance of precipitation in August

Any precipitation

Kaarina gets around 80 mm of rain over 12.6 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 40% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
340
440
540
640
740
839
939
1039
1139
1239
1339
1439
1539
1639
1740
1840
1940
2040
2141
2241
2341
2441
2541
2641
2741
2841
2941
3041
3140

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 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14934143
25033143
35033143
45232142
55232142
65331142
75431132
85531131
95631121
105730121
115830111
125830111
135930101
145930101
15603091
16613090
17623080
18632980
19642970
20642970
21652960
22652960
23652960
24672850
25672850
26692740
27692740
28702640
29722530
30722530
31732430

Wind in August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 42 min at the start of August to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 156 minutes over August. Sunrise moves from 4:15 AM to 5:29 AM, and sunset from 8:58 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.74:158:58
216.64:178:56
316.64:208:53
416.54:228:51
516.44:248:48
616.34:278:45
716.24:298:43
816.14:328:40
916.14:348:37
1016.04:378:35
1115.94:398:32
1215.84:428:29
1315.74:448:26
1415.64:478:23
1515.54:498:21
1615.44:528:18
1715.34:548:15
1815.34:578:12
1915.24:598:09
2015.15:028:06
2115.05:048:03
2214.95:078:00
2314.85:097:57
2414.75:127:54
2514.65:147:51
2614.55:177:48
2714.45:197:45
2814.35:227:41
2914.25:247:38
3014.15:277:35
3114.15:297:32

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.26 kWh/m².

For context, solar energy here swings from a low near 0.15 kWh/m² to a high of 5.89 kWh/m² in June across the year — August's 4.26 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.6Bright
114.5Bright
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 Kaarina?

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
3.3
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Kaarina for sightseeing.

What to pack for Kaarina in August

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

In August, Kaarina sees daytime highs around 20°C and nights near 11°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Kaarina 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 at the nearest coast (about 31 km away) is warmest in August at about 17°C and coldest in March 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
Jun12Bracing
Jul16Cool
Aug17Cool
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec5Bracing

UV index in Kaarina 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 Kaarina peaks around June 17 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 17UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Kaarina?

Kaarina sits at 60.4°N, 22.4°E, 31 m above sea level, in Finland. The nearest listed city is Turku, 7.0 km away.

Raseborg

Topography around Kaarina

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

Within 3 km, the terrain around Kaarina has only modest variations in elevation — a maximum elevation change of 60 m around an average of 27 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, significant variations in elevation — a maximum elevation change of 276 m.

The land around Kaarina is covered by trees (58%) within 3 km, trees (51%) within 16 km, and trees (46%) and water (36%) within 80 km.

3 km
60 m
16 km
191 m
80 km
276 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Turku 7.0 km · Väståboland 13 km · Lieto 13 km · Raisio 14 km · Naantali 20 km · Salo 42 km · Loimaa 62 km · Raseborg 76 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 Kaarina (60.4072°, 22.369°, elevation 31 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).