Lahti weather in June

In June, Lahti sees average daytime highs of 19°C and overnight lows near 10°C, with 75 mm of rain across 12.3 wet days and about 18.7 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 20°C by the end. The sky is clear or mostly clear about 18% of the time in June, and the air most often feels dry.

Daylight stretches from about 18 h 12 min at the start of June to 18 h 48 min by month's end. Set against the rest of the year, June is Lahti's 3rd-clearest and 10th-windiest month. For the whole year in context, see Lahti's year-round climate.

Daytime high
19°
3rd warmest
Overnight low
10°
10th coldest
Rainfall
75 mm
12.3 wet days
Daylight
18 h 48 min
2:54 AM – 9:41 PM
Cloud cover
68%
3rd clearest
Wind
11 km/h
10th windiest
Solar energy
5.28 kWh/m²
Travel score
5.5
out of 10
Air quality
Excellent
PM2.5 4.3 µg/m³ · 2019

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 20°C by the end.

A typical June day in Lahti reaches about 19°C in the afternoon and slips back to 10°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 24°C. Set against its neighbours, June runs about 4°C warmer than May and about 3°C cooler than July.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1178
2178
3189
4189
5189
6189
7189
8189
91810
101810
111810
121810
131810
141810
151910
161910
171910
181911
191911
201911
211911
221911
231911
241911
251911
261911
271911
282012
292012
302012

How June really feels in Lahti

Once humidity and wind are folded in, June 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

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

Lahti weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -8°4110.310.76.10.0
Feb-3° / -9°348.28.78.50.0
Mar / -6°338.48.211.30.0
Apr / -1°358.83.414.21.3
May15° / 48100.2174.3
Jun19° / 10°7512.3018.75.5
Jul21° / 13°7612.40186.1
Aug20° / 12°6811.7015.55.8
Sep14° / 519.8012.64.0
Oct / 5611.11.69.71.0
Nov / -1°5010.85.56.90.0
Dec-1° / -5°4811.69.95.30.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 17% of June, with mostly cloudy or overcast conditions the remaining 64%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23961
33961
43961
53862
63961
73862
83862
93763
103664
113664
123664
133664
143466
153367
163367
173367
183367
193367
203268
213268
223268
233367
243466
253466
263466
273565
283565
293565
303664

Chance of precipitation in June

Any precipitation

Lahti gets around 75 mm of rain over 12.3 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
537
637
737
838
939
1039
1140
1241
1341
1442
1542
1643
1743
1844
1944
2044
2144
2244
2344
2444
2544
2644
2744
2844
2944
3044

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19541
29541
39451
49451
59451
69451
79361
89262
99262
109262
119172
129172
139172
149172
158983
168983
178983
188893
198893
208893
2187103
2287103
2386113
2486113
2584124
2684124
2783134
2882144
2981154
3080164

Wind in June

Winds average 11 km/h in June.

Across June, 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
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
2910calm
3010calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 18 h 12 min at the start of June to 18 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over June. Sunrise moves from 3:10 AM to 2:58 AM, and sunset from 9:20 PM to 9:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
118.23:109:20
218.23:089:22
318.33:079:24
418.33:059:26
518.43:049:27
618.43:029:29
718.53:019:30
818.53:009:32
918.62:599:33
1018.62:589:35
1118.62:579:36
1218.72:569:37
1318.72:569:38
1418.72:559:39
1518.82:549:40
1618.82:549:41
1718.82:549:42
1818.82:539:43
1918.82:539:43
2018.82:539:44
2118.92:539:44
2218.92:539:44
2318.92:539:45
2418.92:549:45
2518.82:549:45
2618.82:559:45
2718.82:559:45
2818.82:569:44
2918.82:579:44
3018.82:589:43

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.28 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 0.12 kWh/m² to a high of 5.28 kWh/m² in June across the year — June's 5.28 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in June

Is June a good time to visit Lahti?

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

5.5
Sightseeing
3rd-best month of the year
2.1
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Lahti for sightseeing.

What to pack for Lahti in June

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

In June, Lahti sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Lahti in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lahti 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 Lahti?

Lahti sits at 61.0°N, 25.7°E, 105 m above sea level, in Finland. The nearest listed city is Hollola, 9.0 km away.

Topography around Lahti

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

Within 3 km, the terrain around Lahti has only modest variations in elevation — a maximum elevation change of 91 m around an average of 104 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 164 m; within 80 km, only modest variations in elevation — a maximum elevation change of 226 m.

The land around Lahti is covered by trees (51%) and artificial surfaces (35%) within 3 km, trees (65%) within 16 km, and trees (71%) within 80 km.

3 km
91 m
16 km
164 m
80 km
226 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Hollola 9.0 km · Orimattila 20 km · Heinola 32 km · Mäntsälä 43 km · Riihimäki 55 km · Kouvola 58 km · Hyvinge 58 km · Janakkala 58 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 Lahti (60.9827°, 25.6615°, elevation 105 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).