Early January 1 January
44°F
Typical afternoon high
56% historical wet-day frequency
Germany · City
Is January a good time?
January averages 42°F afternoons, with about 17 rain days.
Historical Arnsberg regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Dortmund; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#12 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your January
Afternoons around 42°F (5°C): a warm coat; nights around 31°F (0°C): a winter coat, hat and gloves. Bring rain gear: about 17 days with at least 1 mm of rain. About 8 hours of daylight.
The sun rises about 08:26 and sets about 16:47 (local time, mid-month). Mornings start around 31°F (0°C); afternoons reach about 42°F (5°C). Expect rain on about 17 days in a typical January.
Early, middle or late?
Early and late January have similar afternoon averages. The afternoon high averages 44°F on the 1st, versus 42°F on the 31st. Historical wet-day frequency falls from 56% to 50% between those dates.
44°F
Typical afternoon high
56% historical wet-day frequency
41°F
Typical afternoon high
48% historical wet-day frequency
42°F
Typical afternoon high
50% 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.
Public holidays · 2027: 1 Jan New Year's Day.
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 144° | 244° | 344° | ||||
| 444° | 544° | 644° | 743° | 843° | 943° | 1042° |
| 1142° | 1242° | 1341° | 1441° | 1541° | 1640° | 1740° |
| 1840° | 1940° | 2040° | 2140° | 2240° | 2340° | 2440° |
| 2541° | 2641° | 2741° | 2842° | 2942° | 3042° | 3142° |
Afternoon high rain likely (25%+) local school holidays public holiday event
Afternoons cool from about 44°F (7°C) in the first week to 42°F (5°C) in the last. The chance of a wet day runs 44–60%. Local schools are out 1–6 January 2027.
Schools here are off 1–6 January 2027 (Christmas holidays). Public holidays: 1 Jan New Year's Day. Elsewhere in January 2027, the share of people living where schools are out on a typical day: Spain 24%, Italy 20%, Poland 17%, Greece 23%. (School holidays: OpenHolidays, ODbL.)
Visitor season
Steady all year. January averages 64% of August's overnight stays per day. Overnight demand varies little across the year.
Overnight stays across Arnsberg do not measure queues, day visitors or congestion at individual sights.
Hotel price season
About usual. Estimated from national hotel prices and local visitor demand; no measured regional room rate is available.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Year-to-year variation
In the 15 years from 2011 to 2025, the month's afternoons averaged between 37°F (3°C) and 46°F (8°C); in 10 of them they were within 3°F (1.5°C) of the typical 42°F (5°C). Rain days ranged from 11 to 20; half the years had 14–18.
Rain days in each January
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 40°F | 13 |
| 2012 | 42°F | 18 |
| 2013 | 38°F | 14 |
| 2014 | 45°F | 17 |
| 2015 | 41°F | 18 |
| 2016 | 42°F | 19 |
| 2017 | 37°F | 11 |
| 2018 | 45°F | 17 |
| 2019 | 39°F | 18 |
| 2020 | 46°F | 12 |
| 2021 | 39°F | 18 |
| 2022 | 43°F | 14 |
| 2023 | 44°F | 20 |
| 2024 | 42°F | 14 |
| 2025 | 42°F | 16 |
Checked against 13 local weather stations. How we check
Compare dates
| Typical conditions | Dec | Jan | Feb |
|---|---|---|---|
| Afternoons | 45°F | 42°F | 45°F |
| Rain days | 16 | 17 | 13 |
| Overnight demand | 72% | 64% | 77% |
December: Warmer afternoons than January. December guide →
February: Warmer afternoons and fewer rain days than January. February guide →
Overnight demand measures accommodation stays, not queues.
Yellow marks the top three months on the Balanced mix. January stays as your reference.
Hotel stays vary little through the year. March to November have a Weather score at least 1.0 point higher than January.
Your comparison
Overnight stays vary little through the year.
National hotel prices and local visitor demand suggest about usual. No measured regional room rate is available.
Read the December guide →| Typical conditions | January | December |
|---|---|---|
| Afternoons | 42°F | 45°F |
| Nights | 31°F | 35°F |
| Rain days | 17 | 16 |
| Visitor season | Steady all year | Steady all year |
| Overall / 10 | 4.6 | 4.8 |
| Month rank | #12 | #11 |
| Month | Overall | Rank | High | Low | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|
| January | 4.6 | #12 | 42°F | 31°F | 17 | 3.6 | Steady all year |
| February | 5.3 | #10 | 45°F | 31°F | 13 | 4.3 | Steady all year |
| March | 6.0 | #8 | 52°F | 35°F | 11 | 5.6 | Steady all year |
| April | 6.6 | #6 | 59°F | 40°F | 9 | 6.9 | Steady all year |
| May | 7.1 | #5 | 66°F | 46°F | 9 | 7.8 | Steady all year |
| June | 7.5 | #2 | 73°F | 53°F | 10 | 8.6 | Steady all year |
| July | 7.5 | #3 | 75°F | 55°F | 12 | 8.6 | Steady all year |
| August | 7.6 | #1 | 75°F | 55°F | 11 | 8.7 | Steady all year |
| September | 7.3 | #4 | 68°F | 50°F | 8 | 8.3 | Steady all year |
| October | 6.3 | #7 | 59°F | 45°F | 12 | 6.3 | Steady all year |
| November | 5.6 | #9 | 49°F | 38°F | 13 | 4.9 | Steady all year |
| December | 4.8 | #11 | 45°F | 35°F | 16 | 3.8 | 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.
MünsterGermany · about 50 miles
Balanced Overall 5.2 · Fair weather, 43°F (6°C) · Steady all year · Cost pricey
Detmold & East WestphaliaGermany · about 50 miles
Balanced Overall 5.8 · Fair weather, 42°F (5°C) · Moderate season · Cost pricey
Frankfurt & southern HesseGermany · about 90 miles
Balanced Overall 5.1 · Fair weather, 43°F (6°C) · Steady all year · Cost pricey
Weser-Ems & the North Sea coastLower Saxony · Germany · about 110 miles
Balanced Overall 6.0 · Fair weather, 43°F (6°C) · Low season · Cost moderate
Amsterdam & North HollandNetherlands · about 160 miles
Balanced Overall 5.2 · Fair weather, 45°F (7°C) · Moderate season · Cost moderate
Elsewhere in Europe
Dortmund & the Sauerland's weather ranks 38 of 41 city regions this month. These city regions outside Germany have clearly better weather on your dates, nearest first, each compared with Dortmund & the Sauerland.
Milan, Lake Como & LombardyItaly · about 400 miles
Good weather (5.7): 6°F warmer afternoons, 11 fewer rain days, cheaper
ViennaAustria · about 430 miles
Fair weather (4.6): about as warm, 9 fewer rain days, cheaper
BratislavaSlovakia · about 460 miles
Fair weather (4.6): about as warm, 6 fewer rain days, cheaper
Bologna & Emilia-RomagnaItaly · about 490 miles
Good weather (5.7): 8°F warmer afternoons, 10 fewer rain days, cheaper
ZagrebCroatia · about 530 miles
Fair weather (4.9): 2°F warmer afternoons, 9 fewer rain days, cheaper
Hotel stays are steady all year here: this month is 64% of the busiest and 23% below average. That counts overnight stays, not how busy the sights are.The figures cover the whole Arnsberg region, suburbs included. That means about 19,000 overnight visitors on a typical January night across the region, 76% of them from Germany itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 4,200 more: 22 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 53 |
| How our weather was checked | 13 open weather stations in this region, January and July: afternoon highs typically within 1°F (0.1°C), night lows within 1°F (0.5°C). |
| Tourist nights per 1,000 residents per day | 5 |
| Busiest month here | August · 8 |
| Visitors as share of people present | 0.5% |
| Rank among Europe's regions this month | 38th percentile |
| Domestic share of nights | 76% |
| Platform rental nights per 100 counted nights | 22 |
| Visitor share if every platform night were extra | 0.6% |
| National hotel-price season | Germany historical 2024–2025 index: About usual (−4% vs its average month). Not a local room quote. |
| Population used | 3.6 million |
| Statistical region | DEA5 · Arnsberg |
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. Full method · this region's data.