Early May 1 May
64°F
Typical afternoon high
51% historical wet-day frequency
Switzerland · Countryside
Is May a good time?
May averages 68°F afternoons, with about 15 rain days. Later May is typically warmer.
Historical Nordwestschweiz regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Basel; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#5 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your May
Afternoons around 68°F (20°C): light layers; nights around 48°F (9°C): a warm coat. Bring rain gear: about 15 days with at least 1 mm of rain. About 15 hours of daylight.
The sun rises about 05:52 and sets about 20:56 (local time, mid-month). Mornings start around 48°F (9°C); afternoons reach about 68°F (20°C). Expect rain on about 15 days in a typical May.
Early, middle or late?
Late May is typically warmer. The afternoon high averages 64°F on the 1st, versus 72°F on the 31st. Historical wet-day frequency falls from 51% to 44% between those dates.
64°F
Typical afternoon high
51% historical wet-day frequency
68°F
Typical afternoon high
51% historical wet-day frequency
72°F
Typical afternoon high
44% 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 May Labour Day; 6 May Ascension Day.
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 164° | 265° | |||||
| 365° | 466° | 566° | 666° | 766° | 866° | 966° |
| 1066° | 1167° | 1267° | 1367° | 1467° | 1568° | 1668° |
| 1768° | 1868° | 1968° | 2068° | 2168° | 2269° | 2369° |
| 2470° | 2570° | 2670° | 2771° | 2871° | 2971° | 3072° |
| 3172° |
Afternoon high rain likely (25%+) local school holidays public holiday event
Afternoons warm from about 65°F (19°C) in the first week to 71°F (22°C) in the last. The chance of a wet day runs 42–55%.
No school holidays here in May 2027. Public holidays: 1 May Labour Day; 6 May Ascension Day. Elsewhere in May 2027, the share of people living where schools are out on a typical day: Germany 13%, Greece 29%. (School holidays: OpenHolidays, ODbL.)
Visitor season
Steady all year. May averages 93% of June's overnight stays per day. Overnight demand varies little across the year.
Overnight stays across Nordwestschweiz do not measure queues, day visitors or congestion at individual sights. For its size, quieter than most of Europe this month.
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 62°F (17°C) and 73°F (23°C); in 9 of them they were within 3°F (1.5°C) of the typical 68°F (20°C). Rain days ranged from 8 to 21; half the years had 13–18.
Rain days in each May
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 73°F | 10 |
| 2012 | 69°F | 13 |
| 2013 | 62°F | 21 |
| 2014 | 66°F | 18 |
| 2015 | 68°F | 15 |
| 2016 | 66°F | 17 |
| 2017 | 70°F | 14 |
| 2018 | 71°F | 16 |
| 2019 | 63°F | 14 |
| 2020 | 69°F | 8 |
| 2021 | 62°F | 21 |
| 2022 | 72°F | 10 |
| 2023 | 69°F | 15 |
| 2024 | 67°F | 19 |
| 2025 | 68°F | 13 |
Checked against 7 local weather stations. How we check
Compare dates
| Typical conditions | Apr | May | Jun |
|---|---|---|---|
| Afternoons | 62°F | 68°F | 77°F |
| Rain days | 10 | 15 | 13 |
| Overnight demand | 76% | 93% | 100% |
April: Cooler afternoons and fewer rain days than May. April guide →
June: Warmer afternoons and fewer rain days than May. June guide →
Overnight demand measures accommodation stays, not queues.
Yellow marks the top three months on the Balanced mix. May stays as your reference.
Hotel stays vary little through the year. September has a Weather score at least 1.0 point higher than May.
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 April guide →| Typical conditions | May | April |
|---|---|---|
| Afternoons | 68°F | 62°F |
| Nights | 48°F | 41°F |
| Rain days | 15 | 10 |
| Visitor season | Steady all year | Steady all year |
| Overall / 10 | 6.0 | 5.9 |
| Month rank | #5 | #6 |
| Month | Overall | Rank | High | Low | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|
| January | 4.3 | #12 | 43°F | 30°F | 15 | 4.0 | Steady all year |
| February | 4.9 | #9 | 47°F | 30°F | 9 | 5.0 | Steady all year |
| March | 5.4 | #8 | 55°F | 35°F | 11 | 6.1 | Steady all year |
| April | 5.9 | #6 | 62°F | 41°F | 10 | 7.1 | Steady all year |
| May | 6.0 | #5 | 68°F | 48°F | 15 | 7.4 | Steady all year |
| June | 6.3 | #4 | 77°F | 56°F | 13 | 8.0 | Steady all year |
| July | 6.4 | #2 | 79°F | 58°F | 13 | 8.0 | Steady all year |
| August | 6.4 | #3 | 79°F | 57°F | 11 | 7.9 | Steady all year |
| September | 6.5 | #1 | 71°F | 51°F | 11 | 8.4 | Steady all year |
| October | 5.8 | #7 | 62°F | 44°F | 11 | 7.0 | Steady all year |
| November | 4.8 | #10 | 51°F | 36°F | 12 | 5.0 | Steady all year |
| December | 4.4 | #11 | 45°F | 32°F | 16 | 4.2 | 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.
ZurichSwitzerland · about 30 miles
Balanced Overall 6.0 · Very good weather, 67°F (19°C) · Steady all year · Cost expensive
Lucerne & central Switzerlandabout 40 miles
Balanced Overall 5.8 · Good weather, 66°F (19°C) · Busy season · Cost expensive
Milan, Lake Como & LombardyItaly · about 150 miles
Balanced Overall 7.5 · Very good weather, 73°F (23°C) · Busy season · Cost pricey
TyrolInnsbruck · Austria · about 160 miles
Balanced Overall 7.0 · Good weather, 65°F (18°C) · Low season · Cost moderate
Munich & Upper BavariaGermany · about 180 miles
Balanced Overall 6.9 · Very good weather, 66°F (19°C) · Busy season · Cost pricey
Elsewhere in Europe
Basel & northwest Switzerland's weather ranks 110 of 117 countryside regions this month. These countryside regions outside Switzerland have clearly better weather on your dates, nearest first, each compared with Basel & northwest Switzerland.
Mainz & the PalatinateRhineland-Palatinate · Germany · about 140 miles
Very good weather (8.4): about as warm, 5 fewer rain days, cheaper
PiedmontItaly · about 160 miles
Very good weather (8.6): 4°F warmer afternoons, 5 fewer rain days, cheaper
TuscanyFlorence, Siena · Italy · about 310 miles
Excellent weather (9.4): 6°F warmer afternoons, 8 fewer rain days, cheaper
Saxony-AnhaltGermany · about 360 miles
Very good weather (8.4): about as warm, 8 fewer rain days, cheaper
UmbriaItaly · about 380 miles
Excellent weather (9.3): 6°F warmer afternoons, 7 fewer rain days, cheaper
Hotel stays are steady all year here: this month is 93% of the busiest and 12% above average. That counts overnight stays, not how busy the sights are. That means about 9,300 overnight visitors on a typical May night across the region, 48% of them from Switzerland itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 1,100 more: 12 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 72 |
| How our weather was checked | 7 open weather stations in this region, January and July: afternoon highs typically within 2°F (0.9°C), night lows within 1°F (0.3°C). |
| Tourist nights per 1,000 residents per day | 8 |
| Busiest month here | June · 8 |
| Visitors as share of people present | 0.8% |
| Rank among Europe's regions this month | 22nd percentile |
| Domestic share of nights | 48% |
| Platform rental nights per 100 counted nights | 12 |
| Visitor share if every platform night were extra | 0.8% |
| National hotel-price season | Switzerland historical 2024–2025 index: About usual (−1% vs its average month). Not a local room quote. |
| Population used | 1.2 million |
| Statistical region | CH03 · Nordwestschweiz |
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.