AI-generatedHerisau at a glance
- Best time
- Jun – Sep
- Warmest month
- Jul · 22°
- Sunshine a year
- 1,620 h
- Rain a year
- 1,491 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 780 m
Climate in Herisau
Herisau has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 22 °C, while January is the coolest at 3 °C. With around 1,620 hours of sunshine a year, Herisau is moderately sunny; July is the sunniest month with 7.3 hours a day.
Holiday weather through the year
Best time to visit Herisau
The best time to visit Herisau is from June to September. The wettest month is August with 182 mm of precipitation.
Herisau through the seasons
How the weather changes over the seasons, with averages for each.
Herisau in spring
Mar – May
Poor
- 8–17 °C by day
- 5.3 h of sun a day
- 46 rainy days in all
Herisau in summer
Jun – Aug
Good
- 20–22 °C by day
- 6.9 h of sun a day
- 52 rainy days in all
Herisau in autumn
Sep – Nov
Poor
- 7–17 °C by day
- 3.5 h of sun a day
- 40 rainy days in all
Herisau in winter
Dec – Feb
Poor
- 3–4 °C by day
- 2.0 h of sun a day
- 40 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
Rainy season or more than 12 rainy days
Snow
Nov – Apr
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Herisau for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: June – September
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 7°
- Midday, 13:00: about 12°
- Afternoon, 16:00: about 12°
- Evening, 20:00: about 10°
- Night, 23:00: about 9°
07:4018:37
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:21–08:21 · evening 17:56–18:56
- Blue hour
- Morning 07:09–07:21 · evening 18:56–19:08
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Herisau compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 15° at the start of the month to 10° at the end. The days get 1.6 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 15° | 10° |
| Night-time low | 8° | 4° |
| Daylight | 11.8 h | 10.1 h |
What is the weather like in Herisau in October?
In October, Herisau is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sun is scarce, with only about 3.3 hours a day. Rain is frequent, with about 13 rainy days and 105 mm in total. All in all, October is not an ideal month for a holiday in Herisau.
More details for October
- Daylight
- 10 h 58 min07:40 – 18:37
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snowAll months
- Time zone
- UTC+2offset from UTC
How the score comes together
- Temperatureweight 50 %51 %
- Sunshineweight 20 %5 %
- Few rainy daysweight 30 %36 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Herisau
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
September has the better holiday weather in Herisau: score 66 against 37. In September, days are 4 °C warmer than in October. September has one more rainy day. The sun shines 2 hours longer a day in September.
| Month | October | September |
|---|---|---|
| Holiday weather score | 37 | 66better |
| Daytime high | 13° | 17° |
| Night-time low | 7° | 10° |
| Sunshine | 3.3 h | 5.1 hbetter |
| Rainy days | 13better | 14 |
| Rainfall | 105 mmbetter | 127 mm |
Based on the climate averages 1996–2025.
Herisau month by month
The typical weather for every month at a glance.
11January3° · 1.8 h
In January, Herisau is cold: daytime highs average 3 °C, and nights often drop below freezing (−2 °C). The sun is scarce, with only about 1.8 hours a day. Precipitation falls on about 13 days, totalling 89 mm; on about 7 of them it snows. All in all, January is not an ideal month for a holiday in Herisau.
Herisau in January13February4° · 2.8 h
In February, Herisau is cold: daytime highs average 4 °C, and nights often drop below freezing (−2 °C). The sun is scarce, with only about 2.8 hours a day. Rain is frequent, with about 12 rainy days and 80 mm in total. Snow falls on about 6 days. All in all, February is not an ideal month for a holiday in Herisau.
Herisau in February13March8° · 4.3 h
In March, Herisau is cold: daytime highs average 8 °C, and nights cool down to about 1 °C. Expect around 4.3 hours of sunshine a day. It rains often – on about 14 days, adding up to 96 mm. Snow falls on about 5 days. All in all, March is not an ideal month for a holiday in Herisau.
Herisau in March41April12° · 5.6 h
In April, Herisau is cool: daytime highs average 12 °C, and nights cool down to about 4 °C. Expect around 5.6 hours of sunshine a day. It rains often – on about 14 days, adding up to 101 mm. Snow falls on about 3 days. All in all, April is a so-so month for a holiday in Herisau.
Herisau in April59May17° · 6.0 h
In May, Herisau is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. Expect around 6.0 hours of sunshine a day. It rains often – on about 18 days, adding up to 157 mm. All in all, May is a so-so month for a holiday in Herisau.
Herisau in May64June20° · 6.7 h
In June, Herisau is mild: daytime highs average 20 °C, and nights cool down to about 12 °C. The sun shines for around 6.7 hours a day. It rains often – on about 17 days, adding up to 168 mm. All in all, June is a good month for a holiday in Herisau.
Herisau in June64July22° · 7.3 h
In July, Herisau is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sun shines for around 7.3 hours a day. It rains often – on about 18 days, adding up to 180 mm. All in all, July is a good month for a holiday in Herisau.
Herisau in July65August22° · 6.8 h
In August, Herisau is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sun shines for around 6.8 hours a day. It rains often – on about 17 days, adding up to 182 mm. All in all, August is a good month for a holiday in Herisau.
Herisau in August66September17° · 5.1 h
In September, Herisau is mild: daytime highs average 17 °C, and nights cool down to about 10 °C. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 127 mm in total. All in all, September is a good month for a holiday in Herisau.
Herisau in September37October13° · 3.3 h
In October, Herisau is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sun is scarce, with only about 3.3 hours a day. Rain is frequent, with about 13 rainy days and 105 mm in total. All in all, October is not an ideal month for a holiday in Herisau.
Herisau in October10November7° · 2.0 h
In November, Herisau is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2.0 hours a day. Rain is frequent, with about 13 rainy days and 104 mm in total. Snow falls on about 4 days. All in all, November is not an ideal month for a holiday in Herisau.
Herisau in November8December4° · 1.5 h
In December, Herisau is cold: daytime highs average 4 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 1.5 hours a day. It rains often – on about 14 days, adding up to 103 mm. Snow falls on about 7 days. All in all, December is not an ideal month for a holiday in Herisau.
Herisau in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Herisau
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 7°. The room should be heated.
The coolest nights are in January (−2°), the warmest in July (14°). Nights fall below 8 °C on average from October to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 11 | 3° | −2° | 1.8 h | 13 | 89 |
| FebruaryFeb | 13 | 4° | −2° | 2.8 h | 12 | 80 |
| MarchMar | 13 | 8° | 1° | 4.3 h | 14 | 96 |
| AprilApr | 41 | 12° | 4° | 5.6 h | 14 | 101 |
| MayMay | 59 | 17° | 8° | 6.0 h | 18 | 157 |
| JuneJun | 64 | 20° | 12° | 6.7 h | 17 | 168 |
| JulyJul | 64 | 22° | 14° | 7.3 h | 18 | 180 |
| AugustAug | 65 | 22° | 14° | 6.8 h | 17 | 182 |
| SeptemberSep | 66 | 17° | 10° | 5.1 h | 14 | 127 |
| OctoberOct | 37 | 13° | 7° | 3.3 h | 13 | 105 |
| NovemberNov | 10 | 7° | 2° | 2.0 h | 13 | 104 |
| DecemberDec | 8 | 4° | −1° | 1.5 h | 14 | 103 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
47.39° N, 9.28° E · 780 m · Europe/Zurich
Sunshine
Sunshine hours in Herisau
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 3.3 of 11.0 hours of daylight in Herisau, 30 % of the daylight hours.
Sunshine hours: measured at the weather station 10 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Herisau: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Herisau has about 13 rainy days with 105 mm of rain in total.
UV index
UV index in Herisau
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 9).
Minutes until sunburn in October
- Very fair skin
- about 50 min
- Fair skin
- about 60 min
- Light brown skin
- about 85 min
- Olive skin
- about 110 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Herisau
How breezy and how cloudy Herisau is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Herisau typically peaks at 10 km/h during the day: Beaufort 2, light breeze or less.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Herisau: mostly cloudy, with about 3.3 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow
Snow in Herisau
When Herisau is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Herisau has about 1 day with at least 1 cm of fresh snow, 2 cm in total. The chance of seeing snow during a week's stay is 7 out of 100: hardly any.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Herisau
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Herisau in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Herisau has its best school-holiday weather during the summer holidays (score 65) and its weakest during the Christmas holidays (score 10).
- 33
Easter holidays
Mar – Apr
Poor
- 11 °C by day
- 5.2 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain, Snow
- 60
May half-term
May – Jun
Good
- 17 °C by day
- 6.1 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain
- 65
Summer holidays
Jul – Aug
GoodBest holidays
- 22 °C by day
- 7.0 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain
- 37
October half-term
Oct
Poor
- 13 °C by day
- 3.3 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 10
Christmas holidays
Dec – Jan
Poor
- 4 °C by day
- 1.7 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 30 min
- Distance
- 840 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Switzerland
- Currency
- Swiss Franc (CHF)
- Languages
- German, French, Italian
- Sockets
- Type C, J · 230 V
- Traffic
- Drives on the right
- Dialling code
- +41
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Herisau compared
Put Herisau side by side with another destination.
Herisau vs St. Gallen
In October the holiday weather in Herisau and St. Gallen is about equally good (score 37 vs 38). During the day it is about as warm in St. Gallen as in Herisau.
| in October | Herisau | St. Gallen |
|---|---|---|
| Holiday weather score | 37 | 38 |
| Daytime high | 13° | 13° |
| Sunshine | 3 h | 3 h |
| Rainy days | 13 | 13 |
| Best time | Jun – Sep | Jun – Sep |
Through the year
Best places in the country
Switzerland in October: the best places
In October, Herisau ranks 30 among the 31 nearest destinations in this country.
- Landquart16°63
- 2Walenstadt16°62
- 3Sargans16°62
- 4Bad Ragaz16°61
- 5Glarus15°54
- 6Altstätten15°50
- 7Quarten14°50
- 8Diessenhofen14°49
- 30HerisauThis page13°37
Places nearby
Near Herisau
Other destinations close by.
Places with a similar climate
Places with a climate like Herisau
Destinations whose weather through the year is closest to Herisau's – good alternatives.
Frequently asked questions about Herisau
When is the best time to visit Herisau?
The best time to visit Herisau is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Herisau?
July is the warmest month, with average highs of 22 °C and nights around 14 °C. January is the coolest month at 3 °C.
When does it rain most in Herisau?
The wettest month is August with 182 mm of precipitation. The driest month is February with 80 mm.
How many hours of sunshine does Herisau get?
Herisau gets around 1,620 hours of sunshine a year. The sunniest month is July with 7.3 hours a day; in December there are 1.5 hours a day.
What time zone is Herisau in?
Herisau is on UTC+1 in January and UTC+2 in July.
How long is the flight from London to Herisau?
A nonstop flight from London to Herisau takes about 1 h 30 min, for a straight-line distance of about 840 km.
Which school holidays are best for Herisau?
Herisau has its best school-holiday weather during the summer holidays (score 65) and its weakest during the Christmas holidays (score 10). Holiday ratings (0–100): Easter holidays 33, May half-term 60, summer holidays 65, October half-term 37, Christmas holidays 10.