Weather in Helsinki in October
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youOctober in Helsinki is cold, with average highs of 9.8°C and lows of 5.5°C. It is fairly wet (14 rainy days on average), with roughly 5.0 hours of sunshine a day. This is peak season for good reason — conditions are close to ideal. For the complete picture, see the best time to visit Helsinki — every month compared. Once you know when to go, find your Helsinki packing list at 247PackingList.
Get ready for Helsinki in October
Search flights to Helsinki
Compare 100+ airlines for October — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Helsinki in October
- Warm winter coat
- Thermal underlayers
- Gloves, hat and scarf
- Waterproof boots
- Light waterproof layer
Compare all months in Helsinki
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 0.4°C | 84.4mm | 8/10 |
| February | -0.1°C | 67.8mm | 6/10 |
| March | 2.2°C | 51.7mm | 8/10 |
| April | 7.3°C | 36.3mm | 10/10 |
| May | 12.7°C | 62.7mm | 10/10 |
| June | 20.2°C | 52.6mm | 10/10 |
| July | 20.8°C | 78.5mm | 10/10 |
| August | 19.9°C | 104.2mm | 9/10 |
| September | 14.9°C | 58.7mm | 10/10 |
| October | 9.8°C | 91.5mm | 10/10 |
| November | 4.4°C | 73.6mm | 8/10 |
| December | -0.5°C | 68.0mm | 6/10 |
Full month-by-month guide: best time to visit Helsinki →
For facts about Finland — currency, language and dialling code — see our Finland country guide at 247CountryInfo. Travellers also find it useful to keep a Helsinki travel guide to hand. Check clothing sizes in Finland before you shop.
Frequently Asked Questions
Is October a good time to visit Helsinki?
October rates 10/10 for visiting Helsinki — excellent time to visit. Expect average highs of 9.8°C, 91.5mm of rain across the month and about 5.0 hours of daily sunshine.
What is the temperature in Helsinki in October?
In October, Helsinki has average highs of 9.8°C (49.6°F) and average lows of 5.5°C (41.9°F).
Does it rain in Helsinki in October?
Some rain is likely. Helsinki averages 91.5mm across about 14 rainy days in October, so a light waterproof layer is worth packing.
What should I wear in Helsinki in October?
For Helsinki in October (9.8°C highs / 5.5°C lows), pack warm winter coat plus thermal underlayers, gloves, hat and scarf, waterproof boots.
More essentials for Helsinki in October
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.