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Temperature · last 4 and next 28 hours
Updated hourly.
Two-week trend.
Sunrise –, golden light until –
Sunset –, golden light from –
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European index, measured continuously.
Daily maximum — protection advised from 3.
Snow settles about 300 m below it.
Neighbouring municipalities, as the crow flies.
Today (Sunday 27 Sep) in Rapperswil-Jona: mostly sunny, 13 to 25 °C, precipitation 0.0 mm (0 %), wind up to 6 km/h. Tomorrow: partly cloudy, 14 to 26 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | mostly sunny | 13 °C | 25 °C | 0.0 mm | 6 km/h |
| Tomorrow | partly cloudy | 14 °C | 26 °C | 0.0 mm | 8 km/h |
| Tue 29 Sep | overcast | 14 °C | 26 °C | 0.0 mm | 9 km/h |
| Wed 30 Sep | overcast | 16 °C | 26 °C | 0.0 mm | 10 km/h |
| Thu 1 Oct | light rain | 16 °C | 19 °C | 2.7 mm | 5 km/h |
| Fri 2 Oct | fog | 15 °C | 20 °C | 0.3 mm | 7 km/h |
| Sat 3 Oct | fog | 14 °C | 21 °C | 0.0 mm | 6 km/h |
No rain expected in Rapperswil-Jona today or tomorrow. The 15-minute detail for the next two hours is shown on demand.
Sunday 27 Sep in Rapperswil-Jona, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 14 °C around 07:00, high 26 °C around 17:00. No rainy hour.
| Time | Weather | Temp. | Precip. | Wind |
|---|---|---|---|---|
| 00:00 | sunny | 16 °C | 0.0 mm | 5 km/h |
| 01:00 | sunny | 16 °C | 0.0 mm | 4 km/h |
| 02:00 | sunny | 15 °C | 0.0 mm | 3 km/h |
| 03:00 | sunny | 15 °C | 0.0 mm | 3 km/h |
| 04:00 | sunny | 15 °C | 0.0 mm | 4 km/h |
| 05:00 | sunny | 14 °C | 0.0 mm | 3 km/h |
| 06:00 | sunny | 14 °C | 0.0 mm | 4 km/h |
| 07:00 | sunny | 14 °C | 0.0 mm | 3 km/h |
| 08:00 | sunny | 14 °C | 0.0 mm | 3 km/h |
| 09:00 | sunny | 16 °C | 0.0 mm | 1 km/h |
| 10:00 | sunny | 18 °C | 0.0 mm | 2 km/h |
| 11:00 | sunny | 20 °C | 0.0 mm | 2 km/h |
| 12:00 | sunny | 22 °C | 0.0 mm | 3 km/h |
| 13:00 | sunny | 24 °C | 0.0 mm | 5 km/h |
| 14:00 | sunny | 25 °C | 0.0 mm | 5 km/h |
| 15:00 | sunny | 26 °C | 0.0 mm | 5 km/h |
| 16:00 | mostly sunny | 26 °C | 0.0 mm | 5 km/h |
| 17:00 | sunny | 26 °C | 0.0 mm | 4 km/h |
| 18:00 | sunny | 25 °C | 0.0 mm | 5 km/h |
| 19:00 | sunny | 22 °C | 0.0 mm | 4 km/h |
| 20:00 | sunny | 20 °C | 0.0 mm | 6 km/h |
| 21:00 | sunny | 19 °C | 0.0 mm | 6 km/h |
| 22:00 | sunny | 18 °C | 0.0 mm | 5 km/h |
| 23:00 | sunny | 18 °C | 0.0 mm | 4 km/h |
Tomorrow, Monday 28 Sep, in Rapperswil-Jona: partly cloudy, 14 to 26 °C, wind up to 8 km/h. No precipitation expected.
This weekend in Rapperswil-Jona: Saturday fog, 14 to 21 °C; Sunday mostly sunny, 13 to 25 °C.
Yes: 1 day with precipitation is expected in Rapperswil-Jona over the next 7 days, 3.0 mm in total. Wettest day: Thursday 1 Oct (2.7 mm).
The best day of the next 7 in Rapperswil-Jona: Sunday 27 Sep, mostly sunny, up to 25 °C.
From 20 Sep to 26 Sep: 16.8 °C on average, 2.0 °C above the September normal (14.8 °C), 0 mm of precipitation (7-day normal: 26 mm). Warmest day: saturday 26 Sep (25 °C); coolest night: wednesday 23 Sep (9 °C).
| Day | Min | Max | Rain |
|---|---|---|---|
| Sun 20 Sep | 14 °C | 24 °C | 0.0 mm |
| Mon 21 Sep | 14 °C | 21 °C | 0.0 mm |
| Tue 22 Sep | 9 °C | 21 °C | 0.0 mm |
| Wed 23 Sep | 9 °C | 21 °C | 0.0 mm |
| Thu 24 Sep | 13 °C | 21 °C | 0.0 mm |
| Fri 25 Sep | 10 °C | 22 °C | 0.0 mm |
| Sat 26 Sep | 12 °C | 25 °C | 0.0 mm |
Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.
In Rapperswil-Jona (459 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.1 °C on average) and the coldest January (1.7 °C). About 1352 mm of precipitation falls per year, peaking in August (161 mm) with a minimum in February (78 mm). The sun shines for about 1705 hours a year, mostly in July (234 h). On average there are 68 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.1 °C and the absolute minimum −8.9 °C.
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 | 1.7 °C | 12.7 °C | −8.9 °C | 81 | 56 | 19 | 0 |
| Feb | 2.1 °C | 13.8 °C | −8.3 °C | 78 | 87 | 16 | 0 |
| Mar | 5.7 °C | 18.3 °C | −4.9 °C | 96 | 144 | 8 | 0 |
| Apr | 9.6 °C | 22.7 °C | −0.9 °C | 93 | 183 | 2 | 0 |
| May | 13.8 °C | 26.9 °C | 3.7 °C | 141 | 198 | 0 | 3 |
| Jun | 17.3 °C | 30.0 °C | 7.4 °C | 150 | 216 | 0 | 11 |
| Jul | 19.1 °C | 31.1 °C | 10.0 °C | 155 | 234 | 0 | 15 |
| Aug | 18.9 °C | 30.3 °C | 9.4 °C | 161 | 218 | 0 | 13 |
| Sep | 14.8 °C | 25.8 °C | 5.7 °C | 112 | 161 | 0 | 3 |
| Oct | 10.8 °C | 22.5 °C | 1.6 °C | 94 | 107 | 1 | 0 |
| Nov | 5.8 °C | 18.1 °C | −3.4 °C | 89 | 57 | 6 | 0 |
| Dec | 2.6 °C | 13.7 °C | −7.4 °C | 102 | 44 | 16 | 0 |
| Year | 10.2 °C | 31.1 °C | −8.9 °C | 1352 | 1705 | 68 | 46 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Wädenswil (13 km, 485 m), Einsiedeln (15 km, 911 m), Hörnli (15 km, 1133 m), adjusted to the elevation of Rapperswil-Jona (459 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.