What is the weather in Rorschach today?

At the top of the page you will find the current temperature, precipitation and wind in Rorschach, updated in real time.

What is the 15-day forecast for Rorschach?

The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Rorschach.

Will it rain tomorrow in Rorschach?

Check the 48-hour hourly forecast to see exactly when precipitation is expected in Rorschach.

What is the air quality in Rorschach?

The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Rorschach.

Are there weather alerts for Rorschach?

Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.

At what altitude is Rorschach located?

Rorschach sits at around 413 m above sea level in the canton of St. Gallen. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Rorschach?

The warmest month in Rorschach is July, averaging 19.3 °C (1991–2020 normal). The coldest is January at 1.4 °C.

How much does it rain in Rorschach per year?

Rorschach receives about 1191 mm of precipitation a year. The wettest month is August (152 mm), the driest February (55 mm).

When is the best time to visit Rorschach?

For warmth and sunshine: July (19.3 °C on average, 246 h of sun). The coldest month is January (1.4 °C). Check the 15-day forecast above for your dates.

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Home › St. Gallen › Rorschach

Weather in Rorschach

St. Gallen, 413 m · continuously updated

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Wind: –
Humidity: –
Rain ahead: –
Sunset: –

Goldach: 12.8 °C at Goldach, Bleiche river temperature · FOEN gauge 2.1 km away · 27.09. 00h

Temperature · last 4 and next 28 hours

Rorschach weather: the next 24 hours

Updated hourly.

Rorschach weather hour by hour (48 h)

Rorschach 15-day forecast

Two-week trend.

Rorschach weekend weather Rain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

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Air quality

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European index, measured continuously.

UV index

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Daily maximum — protection advised from 3.

Freezing level

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Snow settles about 300 m below it.

Around Rorschach

Neighbouring municipalities, as the crow flies.

Goldach1 km Rorschacherberg1 km Thal3 km Horn3 km Lutzenberg3 km Heiden3 km Tübach4 km Untereggen4 km

7-day forecast for Rorschach

Today (Sunday 27 Sep) in Rorschach: sunny, 13 to 23 °C, precipitation 0.0 mm (0 %), wind up to 9 km/h. Tomorrow: partly cloudy, 16 to 26 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	sunny	13 °C	23 °C	0.0 mm	9 km/h
Tomorrow	partly cloudy	16 °C	26 °C	0.0 mm	9 km/h
Tue 29 Sep	overcast	17 °C	25 °C	0.0 mm	7 km/h
Wed 30 Sep	overcast	18 °C	26 °C	0.0 mm	6 km/h
Thu 1 Oct	light rain	15 °C	21 °C	4.7 mm	6 km/h
Fri 2 Oct	fog	14 °C	20 °C	0.0 mm	5 km/h
Sat 3 Oct	fog	13 °C	21 °C	0.0 mm	6 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 413 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected in Rorschach today or tomorrow. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Rorschach

Sunday 27 Sep in Rorschach, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 14 °C around 06:00, high 24 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	16 °C	9 km/h
01:00	sunny	16 °C	8 km/h
02:00	sunny	15 °C	8 km/h
03:00	sunny	15 °C	7 km/h
04:00	sunny	15 °C	7 km/h
05:00	sunny	14 °C	7 km/h
06:00	sunny	14 °C	5 km/h
07:00	sunny	14 °C	4 km/h
08:00	sunny	14 °C	3 km/h
09:00	sunny	17 °C	1 km/h
10:00	sunny	16 °C	3 km/h
11:00	sunny	17 °C	1 km/h
12:00	sunny	19 °C	2 km/h
13:00	sunny	20 °C	2 km/h
14:00	sunny	22 °C	2 km/h
15:00	sunny	23 °C	2 km/h
16:00	sunny	24 °C	2 km/h
17:00	sunny	23 °C	2 km/h
18:00	sunny	23 °C	2 km/h
19:00	sunny	20 °C	9 km/h
20:00	sunny	20 °C	9 km/h
21:00	sunny	20 °C	8 km/h
22:00	sunny	20 °C	8 km/h
23:00	sunny	19 °C	8 km/h

Hourly forecast issued 27.09.2026 for Rorschach (413 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Rorschach weather tomorrow

Tomorrow, Monday 28 Sep, in Rorschach: partly cloudy, 16 to 26 °C, wind up to 9 km/h. No precipitation expected.

Rorschach weekend weather

This weekend in Rorschach: Saturday fog, 13 to 21 °C; Sunday sunny, 13 to 23 °C.

Will it rain in Rorschach this week?

Yes: 1 day with precipitation is expected in Rorschach over the next 7 days, 4.7 mm in total. Wettest day: Thursday 1 Oct (4.7 mm).

The best day to go out in Rorschach

The best day of the next 7 in Rorschach: Sunday 27 Sep, sunny, up to 23 °C.

The last 7 days in Rorschach

From 20 Sep to 26 Sep: 15.5 °C on average, in line with the September normal (14.7 °C), 0 mm of precipitation (7-day normal: 26 mm). Warmest day: sunday 20 Sep (23 °C); coolest night: wednesday 23 Sep (8 °C).

Day	Min	Max
Sun 20 Sep	15 °C	23 °C
Mon 21 Sep	12 °C	19 °C
Tue 22 Sep	9 °C	18 °C
Wed 23 Sep	8 °C	18 °C
Thu 24 Sep	13 °C	20 °C
Fri 25 Sep	9 °C	18 °C
Sat 26 Sep	12 °C	22 °C

Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.

Climate of Rorschach: 1991–2020 normals

In Rorschach (413 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.3 °C on average) and the coldest January (1.4 °C). About 1191 mm of precipitation falls per year, peaking in August (152 mm) with a minimum in February (55 mm). The sun shines for about 1718 hours a year, mostly in July (246 h). On average there are 78 frost days and 6 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.1 °C and the absolute minimum −8.9 °C.

10.2 °CMean annual temperature

1191 mmPrecipitation per year

1718 hSunshine hours per year

78Frost days per year

42Summer days (≥ 25 °C)

JFMAMJJASOND

Mean monthly precipitation (mm) — bar height relative to the wettest month.

Month	Mean T	Abs. max	Abs. min	Precip. (mm)	Sunshine (h)	Frost days	Summer days
Jan	1.4 °C	12.8 °C	−8.9 °C	58	47	20	0
Feb	2.2 °C	14.2 °C	−7.9 °C	55	79	18	0
Mar	5.8 °C	18.8 °C	−4.8 °C	72	147	12	0
Apr	9.8 °C	23.0 °C	−1.4 °C	85	189	3	0
May	14.1 °C	27.2 °C	3.6 °C	130	209	0	3
Jun	17.7 °C	30.1 °C	7.6 °C	141	226	0	10
Jul	19.3 °C	31.1 °C	10.0 °C	144	246	0	14
Aug	18.9 °C	30.2 °C	9.4 °C	152	224	0	12
Sep	14.7 °C	25.6 °C	5.6 °C	112	163	0	2
Oct	10.6 °C	22.2 °C	1.4 °C	88	97	1	0
Nov	5.5 °C	17.8 °C	−3.9 °C	78	51	8	0
Dec	2.4 °C	14.5 °C	−7.4 °C	78	40	17	0
Year	10.2 °C	31.1 °C	−8.9 °C	1191	1718	78	42

Source: MeteoSwiss open data (1991–2020 normals) — stations Altenrhein (6 km, 398 m), St. Gallen (9 km, 776 m), Güttingen (21 km, 440 m), adjusted to the elevation of Rorschach (413 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.