Weather in Lahti - 14-day forecast

Detailed weather forecast for Lahti, Finland: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Lahti

today🌧️ 19°💧 0.7 mm

Thu🌧️ 12°💧 12.7 mm

Fri☁️ 22°💧 0.5 mm

Sat🌧️ 23°💧 3.3 mm

Sun🌧️ 28°💧 4.2 mm

Mon🌧️ 24°💧 0.9 mm

Tue☀️ 25°💧 0.4 mm

Wed☀️ 27°💧 0.4 mm

⚠️ Weather warnings - Lahti

✅ No active weather warnings for Lahti (region: Päijät-Häme). The national weather service is not forecasting dangerous conditions.

14-day forecast - Lahti

📅 Lahti 30 & 45-day weather - long-range outlook

Next 16 days · forecast

22°

around 18° at night · days with rain: 8

Weeks 3-4 · avg for July

22°

around 13° at night · rain chance 55%

Weeks 5-7 · avg for August

20°

around 12° at night · rain chance 55%

The 30 & 45-day outlook for Lahti: the next 16 days are a numerical forecast updated daily - on average 22° by day and 18° at night. Further out we rely on multi-year climate averages: around 22° in July, and about 20° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Lahti

Wednesday8 July 2026

🌧️19°light rain

sunrise 03:57 · sunset 22:47 · night 12° · evening 16° · rain 0.72 mm · humidity 46% · wind 3 m/s · clouds 100%

Thursday9 July 2026

🌧️12°moderate rain

sunrise 03:59 · sunset 22:45 · night 13° · evening 17° · rain 12.69 mm · humidity 98% · wind 6 m/s · clouds 100%

Friday10 July 2026

☁️22°broken clouds

sunrise 04:01 · sunset 22:44 · night 15° · evening 22° · rain 0.51 mm · humidity 47% · wind 3 m/s · clouds 55%

Saturday11 July 2026

🌧️23°light rain

sunrise 04:03 · sunset 22:42 · night 19° · evening 21° · rain 3.33 mm · humidity 51% · wind 4 m/s · clouds 87%

Sunday12 July 2026

🌧️28°light rain

sunrise 04:04 · sunset 22:40 · night 19° · evening 28° · rain 4.16 mm · humidity 49% · wind 4 m/s · clouds 12%

Monday13 July 2026

🌧️24°light rain

sunrise 04:06 · sunset 22:39 · night 21° · evening 26° · rain 0.93 mm · humidity 60% · wind 4 m/s · clouds 80%

Tuesday14 July 2026

☀️25°clear sky

sunrise 04:08 · sunset 22:37 · night 21° · evening 25° · rain 0.36 mm · humidity 46% · wind 3 m/s · clouds 3%

Wednesday15 July 2026

☀️27°clear sky

sunrise 04:10 · sunset 22:35 · night 23° · evening 28° · rain 0.39 mm · humidity 40% · wind 2 m/s · clouds 2%

Thursday16 July 2026

☁️27°broken clouds

sunrise 04:13 · sunset 22:33 · night 22° · evening 28° · rain 5.7 mm · humidity 41% · wind 3 m/s · clouds 53%

Friday17 July 2026

☁️26°broken clouds

sunrise 04:15 · sunset 22:31 · night 22° · evening 24° · rain 6.12 mm · humidity 49% · wind 5 m/s · clouds 79%

Saturday18 July 2026

🌧️23°light rain

sunrise 04:17 · sunset 22:29 · night 18° · evening 25° · rain 3.87 mm · humidity 81% · wind 6 m/s · clouds 100%

Sunday19 July 2026

🌧️18°light rain

sunrise 04:19 · sunset 22:27 · night 16° · evening 17° · rain 2.55 mm · humidity 54% · wind 7 m/s · clouds 28%

Monday20 July 2026

🌧️17°light rain

sunrise 04:21 · sunset 22:25 · night 13° · evening 15° · rain 0.81 mm · humidity 55% · wind 5 m/s · clouds 72%

Tuesday21 July 2026

🌧️21°light rain

sunrise 04:24 · sunset 22:23 · night 13° · evening 14° · rain 0.42 mm · humidity 44% · wind 5 m/s · clouds 97%

Wednesday22 July 2026

🌧️19°light rain

sunrise 04:26 · sunset 22:21 · night 22° · evening 24° · rain 0.15 mm · humidity 81% · wind 5 m/s · clouds 100%

Thursday23 July 2026

🌧️21°light rain

sunrise 04:28 · sunset 22:18 · night 15° · evening 18° · rain 5.02 mm · humidity 66% · wind 6 m/s · clouds 78%

☀️ UV index in Lahti - is it safe to sunbathe?

Today the UV index in Lahti is 5 (moderate) - unprotected fair skin can burn in about 40 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

🌿 Pollen in Lahti - info for allergy sufferers

Today grasses pollen is highest in Lahti - about 40 grains/m³, high level. Allergy sufferers should limit time outdoors on dry, windy days and take medication as advised. Pollen levels are a CAMS model forecast and are indicative.

Air quality and smog in Lahti

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Helsinki	3.2	4.6	very good
Vantaa	2.9	4.8	very good
Espoo	2.8	3.1	very good
Oulu	2.4	3.3	very good
Turku	2.3	3	very good
Tampere	1.8	2.3	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 04:00).

Lahti weather through the year

Warmest, driest months on average: May, June, July, August.

🎉 Public holidays in Lahti - when are the long weekends?

Next long weekend in Lahti: Christmas Eve (24 December, Thursday) - Thursday–Sunday if you take Friday off (4 days).

31 OctoberSaturday

All Saints' Day

falls on a weekend

6 DecemberSunday

Independence Day

falls on a weekend

24 DecemberThursday

Christmas Eve

🎈 long weekend + bridge day

25 DecemberFriday

Christmas Day

🎈 long weekend

26 DecemberSaturday

St. Stephen's Day

falls on a weekend

1 JanuaryFriday 2027

New Year's Day

🎈 long weekend

6 JanuaryWednesday 2027

Epiphany

26 MarchFriday 2027

Good Friday

🎈 long weekend

28 MarchSunday 2027

Easter Sunday

falls on a weekend

29 MarchMonday 2027

Easter Monday

🎈 long weekend

1 MaySaturday 2027

May Day

falls on a weekend

6 MayThursday 2027

Ascension Day

🎈 long weekend + bridge day

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

Vantaa

FAQ - Lahti weather

What is the weather like in Lahti today?

Today it is about 19° during the day and 12° at night, light rain.

How far ahead can I check the forecast for Lahti?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.