Early December 1 December
35°F
Typical afternoon high
44% historical wet-day frequency
Finland · City
Is December a good time?
December averages 34°F afternoons and 41°F seas, with about 14 rain days. Later December is typically cooler.
Historical Helsinki-Uusimaa regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Helsinki and Porvoo; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#11 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your December
Afternoons around 34°F (1°C): a winter coat, hat and gloves. Bring rain gear: about 14 days with at least 1 mm of rain. About 6 hours of daylight.
The sea averages 41°F. Our swimming guide: very cold: wetsuit weather. Your comfort will vary. This is open water near the coast, not a beach-specific reading.
Monthly coastal averages from NOAA, 2011–2025. Sea temperature is separate from the weather and Overall scores.
The sun rises about 09:21 and sets about 15:11 (local time, mid-month). Mornings start around 26°F (−3°C); afternoons reach about 34°F (1°C). Expect rain on about 14 days in a typical December.
Early, middle or late?
Early December is typically warmer. The afternoon high averages 35°F on the 1st, versus 31°F on the 31st. Historical wet-day frequency falls from 44% to 40% between those dates.
35°F
Typical afternoon high
44% historical wet-day frequency
35°F
Typical afternoon high
50% historical wet-day frequency
31°F
Typical afternoon high
40% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2026.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 135° | 235° | 334° | 434° | 534° | 634° | |
| 734° | 833° | 934° | 1034° | 1134° | 1234° | 1335° |
| 1435° | 1535° | 1635° | 1734° | 1834° | 1934° | 2034° |
| 2134° | 2234° | 2335° | 2434° | 2534° | 2634° | 2733° |
| 2833° | 2932° | 3031° | 3131° |
Afternoon high rain likely (25%+) local school holidays public holiday event
School-holiday dates for December 2026 aren't available in our data yet. A day without a school marker doesn't mean schools are open.
Afternoons cool from about 34°F (1°C) in the first week to 32°F (0°C) in the last. The chance of a wet day runs 40–51%.
Elsewhere in December 2026, the share of people living where schools are out on a typical day: France 39%, Germany 29%, Italy 35%, Spain 32%. (School holidays: OpenHolidays, ODbL.)
Visitor season
Steady all year. December averages 66% of July's overnight stays per day. Overnight demand varies little across the year.
Overnight stays across Helsinki-Uusimaa do not measure queues, day visitors or congestion at individual sights.
Accommodation price season
About usual. Historical regional accommodation revenue (2024–2025 monthly average): €115 per occupied unit per night. An average, not a booking quote.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Statistics Finland 11ix covers hotels and other registered accommodation, including VAT. Units and coverage.
Year-to-year variation
In the 15 years from 2011 to 2025, the month's afternoons averaged between 24°F (−4°C) and 40°F (4°C); in 5 of them they were within 3°F (1.5°C) of the typical 34°F (1°C). Rain days ranged from 4 to 23; half the years had 11–16.
Rain days in each December
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 39°F | 23 |
| 2012 | 24°F | 16 |
| 2013 | 38°F | 15 |
| 2014 | 33°F | 14 |
| 2015 | 40°F | 11 |
| 2016 | 35°F | 4 |
| 2017 | 36°F | 19 |
| 2018 | 32°F | 14 |
| 2019 | 38°F | 16 |
| 2020 | 37°F | 15 |
| 2021 | 26°F | 8 |
| 2022 | 31°F | 15 |
| 2023 | 28°F | 14 |
| 2024 | 36°F | 13 |
| 2025 | 38°F | 11 |
Checked against 13 local weather stations. How we check
Compare dates
| Typical conditions | Nov | Dec | Jan |
|---|---|---|---|
| Afternoons | 41°F | 34°F | 29°F |
| Sea | 46°F | 41°F | 36°F |
| Rain days | 12 | 14 | 14 |
| Overnight demand | 74% | 66% | 52% |
November: Warmer afternoons, warmer sea and fewer rain days than December. November guide →
January: Cooler afternoons and cooler sea than December. January guide →
Overnight demand measures accommodation stays, not queues. Sea temperatures are monthly coastal averages.
Yellow marks the top three months on the Balanced mix. December stays as your reference.
Hotel stays vary little through the year. March to October have a Weather score at least 1.0 point higher than December.
Your comparison
Overnight stays vary little through the year.
Historical regional accommodation revenue (2024–2025 monthly average): €126 per occupied unit per night. An average, not a booking quote.
Read the November guide →| Typical conditions | December | November |
|---|---|---|
| Afternoons | 34°F | 41°F |
| Nights | 26°F | 32°F |
| Sea | 41°F | 46°F |
| Rain days | 14 | 12 |
| Visitor season | Steady all year | Steady all year |
| Overall / 10 | 4.2 | 4.8 |
| Month rank | #11 | #9 |
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 3.9 | #12 | 29°F | 19°F | 36°F | 14 | 2.9 | Steady all year |
| February | 4.3 | #10 | 30°F | 20°F | 34°F | 10 | 3.3 | Steady all year |
| March | 5.3 | #8 | 37°F | 24°F | 34°F | 7 | 4.6 | Steady all year |
| April | 5.8 | #6 | 48°F | 32°F | 37°F | 7 | 5.5 | Steady all year |
| May | 6.7 | #4 | 61°F | 42°F | 45°F | 7 | 7.6 | Steady all year |
| June | 7.2 | #3 | 70°F | 51°F | 55°F | 9 | 8.7 | Steady all year |
| July | 7.5 | #1 | 73°F | 56°F | 62°F | 10 | 9.0 | Steady all year |
| August | 7.4 | #2 | 70°F | 54°F | 64°F | 11 | 8.9 | Steady all year |
| September | 6.5 | #5 | 62°F | 47°F | 60°F | 10 | 7.1 | Steady all year |
| October | 5.5 | #7 | 49°F | 38°F | 52°F | 11 | 5.0 | Steady all year |
| November | 4.8 | #9 | 41°F | 32°F | 46°F | 12 | 3.9 | Steady all year |
| December | 4.2 | #11 | 34°F | 26°F | 41°F | 14 | 3.2 | Steady all year |
Near here
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
Southern Finlandabout 40 miles
Balanced Overall 3.0 · Poor weather, 33°F (1°C) · Low season · Cost pricey
Estoniaabout 120 miles
Balanced Overall 3.0 · Poor weather, 35°F (2°C) · Moderate season · Cost moderate
Western Finlandabout 140 miles
Balanced Overall 5.3 · Fair weather, 32°F (0°C) · Low season · Cost pricey
ÅlandFinland · about 160 miles
Balanced Overall 3.0 · Poor weather, 40°F (4°C) · Off season · Cost moderate
Elsewhere in Europe
Helsinki's weather ranks 41 of 41 city regions this month. These city regions outside Finland have clearly better weather on your dates, nearest first, each compared with Helsinki.
BerlinGermany · about 690 miles
Fair weather (4.3): 9°F warmer afternoons, 2 fewer rain days
LeipzigSaxony · Germany · about 780 miles
Fair weather (4.4): 10°F warmer afternoons
PragueCzechia · about 820 miles
Fair weather (4.6): 9°F warmer afternoons, 5 fewer rain days, cheaper
BratislavaSlovakia · about 880 miles
Fair weather (4.6): 9°F warmer afternoons, 6 fewer rain days, cheaper
ViennaAustria · about 900 miles
Fair weather (4.8): 9°F warmer afternoons, 6 fewer rain days
The Finnish series covers hotels, cottages and other registered accommodation with at least 20 beds or electrical caravan pitches. A rental unit may be a room, a cottage or an electrical pitch. Prices include VAT. Accommodation coverage.
Hotel stays are steady all year here: this month is 66% of the busiest and 10% below average. That counts overnight stays, not how busy the sights are.The figures cover the whole Helsinki-Uusimaa region, suburbs included. That means about 17,000 overnight visitors on a typical December night across the region, 50% of them from Finland itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 3,300 more: 19 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 51 |
| How our weather was checked | 13 open weather stations in this region, January and July: afternoon highs typically within 1°F (0.3°C), night lows within 1°F (0.7°C). |
| Tourist nights per 1,000 residents per day | 10 |
| Busiest month here | July · 15 |
| Visitors as share of people present | 1.0% |
| Rank among Europe's regions this month | 61st percentile |
| Domestic share of nights | 50% |
| Platform rental nights per 100 counted nights | 19 |
| Visitor share if every platform night were extra | 1.2% |
| Population used | 1.8 million |
| Statistical region | FI1B · Helsinki-Uusimaa |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national; the first figure is regional (Statistics Finland, StatFin 11ix: average room price per occupied room (incl. VAT)). Full method · this region's data.