Lappeenranta weather in August

In August, Lappeenranta sees average daytime highs of 20°C and overnight lows near 12°C, with 75 mm of rain across 12.4 wet days and about 15.5 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 17% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 54 min at the start of August to 14 h 06 min by month's end. Set against the rest of the year, August is Lappeenranta's 4th-clearest and 11th-windiest month. For the whole year in context, see Lappeenranta's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
12°
11th coldest
Rainfall
75 mm
12.4 wet days
Daylight
15 h 30 min
4:25 AM – 7:57 PM
Cloud cover
68%
4th clearest
Wind
11 km/h
11th windiest
Solar energy
3.98 kWh/m²
Travel score
5.8
out of 10

Lappeenranta is urban settlement in South Karelia, Finland.

Air quality
Excellent
PM2.5 4.9 µg/m³ · 2019
Density
1,335/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 Lappeenranta reaches about 20°C in the afternoon and slips back to 12°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 25°C. Set against its neighbours, August runs about 2°C cooler than July and about 6°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12214
22214
32214
42213
52213
62113
72113
82113
92113
102113
112113
122113
132013
142012
152012
162012
172012
182012
192012
201912
211912
221912
231911
241911
251911
261811
271811
281811
291811
301811
311810

How August really feels in Lappeenranta

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.

Lappeenranta 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-4° / -8°4210.311.66.10.0
Feb-4° / -9°3899.48.50.0
Mar / -6°3698.311.30.0
Apr / -1°338.43.314.21.0
May14° / 469.20.3174.3
Jun19° / 11°6611.9018.75.7
Jul22° / 14°73120186.2
Aug20° / 12°7512.4015.55.8
Sep14° / 5610.7012.64.0
Oct / 5711.21.69.71.0
Nov / -2°5411.26.16.90.0
Dec-2° / -6°5211.310.25.30.0

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 18% of August, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34159
44060
53961
63961
73862
83862
93763
103763
113763
123763
133763
143763
153664
163664
173763
183664
193565
203565
213565
223466
233367
243268
253268
263268
273169
283070
293070
303070
313070

Chance of precipitation in August

Any precipitation

Lappeenranta gets around 75 mm of rain over 12.4 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 40% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
338
438
539
639
740
840
940
1040
1141
1241
1341
1441
1541
1641
1741
1841
1941
2041
2141
2241
2340
2440
2539
2639
2739
2838
2938
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 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14736161
24836151
34936141
45136130
55236120
65236120
75336110
85436100
95436100
10563590
11573580
12573580
13583570
14583570
15603460
16603460
17613450
18623440
19623440
20633340
21643330
22653230
23653230
24673120
25683020
26692920
27702820
28712720
29732610
30742510
31762310

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
2811calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 54 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 168 minutes over August. Sunrise moves from 3:47 AM to 5:04 AM, and sunset from 8:39 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.93:478:39
216.83:508:37
316.73:528:34
416.63:558:32
516.53:578:29
616.44:008:26
716.44:028:23
816.34:058:21
916.24:078:18
1016.14:108:15
1116.04:128:12
1215.94:158:09
1315.84:188:06
1415.74:208:03
1515.64:238:00
1615.54:257:57
1715.44:287:54
1815.34:317:51
1915.34:337:48
2015.24:367:45
2115.14:387:42
2215.04:417:39
2314.94:437:36
2414.84:467:33
2514.74:497:30
2614.64:517:26
2714.54:547:23
2814.44:567:20
2914.34:597:17
3014.25:017:14
3114.15:047:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.98 kWh/m².

For context, solar energy here swings from a low near 0.12 kWh/m² to a high of 5.55 kWh/m² in June across the year — August's 3.98 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.4Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.1Bright
144.1Bright
154.0Bright
164.0Moderate
173.9Moderate
183.9Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.2Moderate
313.2Moderate
Planning a trip in August

Is August a good time to visit Lappeenranta?

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

5.8
Sightseeing
2nd-best month of the year
3.0
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Lappeenranta for sightseeing.

What to pack for Lappeenranta in August

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

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

rain gear

Sea temperature near Lappeenranta in August

The nearest coast averages about 18°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 49 km away) is warmest in August at about 18°C and coldest in February near -0°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
Jan1Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May7Bracing
Jun13Bracing
Jul17Cool
Aug18Cool
Sep15Bracing
Oct10Bracing
Nov6Bracing
Dec3Bracing

UV index in Lappeenranta 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 Lappeenranta peaks around June 22 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 22UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Lappeenranta?

Lappeenranta sits at 61.1°N, 28.2°E, 104 m above sea level, in Finland. The nearest listed city is Imatra, 33 km away.

HaminaKouvolaAnjalaMikkeliKarhula

Topography around Lappeenranta

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

Within 3 km, the terrain around Lappeenranta has only modest variations in elevation — a maximum elevation change of 180 m around an average of 85 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 188 m; within 80 km, only modest variations in elevation — a maximum elevation change of 242 m.

The land around Lappeenranta is covered by trees (36%), artificial surfaces (29%) and water (27%) within 3 km, trees (63%) and water (20%) within 16 km, and trees (72%) and water (22%) within 80 km.

3 km
180 m
16 km
188 m
80 km
242 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Imatra 33 km · Svetogorsk 37 km · Vyborg 50 km · Hamina 76 km · Kouvola 83 km · Anjala 84 km · Mikkeli 85 km · Karhula 91 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 Lappeenranta (61.0587°, 28.1887°, elevation 104 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).