Lahti weather in October

In October, Lahti sees average daytime highs of 7°C and overnight lows near 3°C, with 56 mm of precipitation across 11.1 wet days and about 9.7 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 5°C by the end. The sky is clear or mostly clear about 11% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of October to 8 h 12 min by month's end. Set against the rest of the year, October is Lahti's 8th-clearest and 5th-windiest month. For the whole year in context, see Lahti's year-round climate.

Daytime high
7th warmest
Overnight low
7th coldest
Precipitation
56 mm
11.1 wet days
Daylight
9 h 42 min
7:13 AM – 4:52 PM
Cloud cover
79%
8th clearest
Wind
12 km/h
5th windiest
Solar energy
0.95 kWh/m²
Travel score
1.0
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 10°C in the first days to 5°C by the end.

A typical October day in Lahti reaches about 7°C in the afternoon and slips back to 3°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 12°C. Set against its neighbours, October runs about 7°C cooler than September and about 5°C warmer than November.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1115
2115
3115
4105
5105
6104
7104
894
994
1094
1183
1283
1383
1483
1573
1672
1772
1872
1962
2062
2162
2261
2361
2451
2551
2651
2751
2851
2951
3051
3141

How October really feels in Lahti

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 19 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
19
wind chill below the day's low

The story in October is cold — wind chill drags the overnight "feels like" below the raw low.

Lahti weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 4th-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42575
52476
62476
72476
82575
92575
102575
112575
122575
132575
142575
152476
162377
172377
182377
192377
202278
212278
222278
232179
242080
252080
262080
271981
281981
291981
301981
311882

Chance of precipitation in October

Any precipitationSnow

Lahti gets around 56 mm of rain and snow over 11.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 36% and peaks near 37% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1330
2331
3341
4351
5351
6362
7362
8362
9363
10363
11363
12364
13364
14354
15355
16355
17355
18356
19356
20357
21357
22357
23358
24368
25369
26369
27379
283710
293710
303711
313711

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 12 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
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 06 min at the start of October to 8 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 174 minutes over October. Sunrise moves from 6:33 AM to 7:53 AM, and sunset from 5:39 PM to 4:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:335:39
211.06:365:36
310.96:385:33
410.86:415:30
510.76:445:27
610.66:465:23
710.56:495:20
810.46:515:17
910.36:545:14
1010.26:575:11
1110.16:595:08
1210.07:025:04
139.97:055:01
149.87:074:58
159.87:104:55
169.77:134:52
179.67:154:49
189.57:184:46
199.47:214:43
209.37:234:40
219.27:264:37
229.17:294:34
239.07:324:31
248.97:344:28
258.87:374:25
268.77:404:22
278.67:424:20
288.57:454:17
298.47:484:14
308.37:514:11
318.27:534:08

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 0.95 kWh/m².

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 — October's 0.95 kWh/m² falls in the middle.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.5Dim
31.4Dim
41.4Dim
51.3Dim
61.3Dim
71.2Dim
81.2Dim
91.2Dim
101.1Dim
111.1Dim
121.1Dim
131.0Dim
141.0Dim
151.0Dim
160.9Dim
170.9Dim
180.9Dim
190.8Dim
200.8Dim
210.8Dim
220.8Dim
230.7Dim
240.7Dim
250.7Dim
260.7Dim
270.6Dim
280.6Dim
290.6Dim
300.6Dim
310.6Dim
Planning a trip in October

Is October a good time to visit Lahti?

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

1.0
Sightseeing
7th-best month of the year
0.0
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Lahti.

What to pack for Lahti in October

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

In October, Lahti sees daytime highs around 7°C and nights near 3°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

UV index in Lahti in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 1. 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
October 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).