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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 La Chaux (Cossonay): mostly sunny, 11 to 24 °C, precipitation 0.0 mm (0 %), wind up to 10 km/h. Tomorrow: overcast, 13 to 24 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | mostly sunny | 11 °C | 24 °C | 0.0 mm | 10 km/h |
| Tomorrow | overcast | 13 °C | 24 °C | 0.0 mm | 7 km/h |
| Tue 29 Sep | overcast | 15 °C | 23 °C | 0.1 mm | 8 km/h |
| Wed 30 Sep | light rain | 15 °C | 19 °C | 3.3 mm | 7 km/h |
| Thu 1 Oct | light rain | 15 °C | 17 °C | 15.0 mm | 8 km/h |
| Fri 2 Oct | overcast | 14 °C | 21 °C | 0.0 mm | 14 km/h |
| Sat 3 Oct | fog | 12 °C | 21 °C | 0.3 mm | 11 km/h |
No rain expected in La Chaux (Cossonay) today or tomorrow. The 15-minute detail for the next two hours is shown on demand.
Sunday 27 Sep in La Chaux (Cossonay), hour by hour: sunny in the morning, sunny in the afternoon, partly cloudy in the evening. Low 12 °C around 03:00, high 24 °C around 16:00. No rainy hour.
| Time | Weather | Temp. | Precip. | Wind |
|---|---|---|---|---|
| 00:00 | sunny | 14 °C | 0.0 mm | 6 km/h |
| 01:00 | sunny | 13 °C | 0.0 mm | 5 km/h |
| 02:00 | sunny | 13 °C | 0.0 mm | 6 km/h |
| 03:00 | sunny | 12 °C | 0.0 mm | 6 km/h |
| 04:00 | sunny | 12 °C | 0.0 mm | 6 km/h |
| 05:00 | sunny | 12 °C | 0.0 mm | 5 km/h |
| 06:00 | sunny | 12 °C | 0.0 mm | 5 km/h |
| 07:00 | sunny | 12 °C | 0.0 mm | 4 km/h |
| 08:00 | sunny | 12 °C | 0.0 mm | 4 km/h |
| 09:00 | sunny | 14 °C | 0.0 mm | 3 km/h |
| 10:00 | sunny | 17 °C | 0.0 mm | 2 km/h |
| 11:00 | sunny | 19 °C | 0.0 mm | 3 km/h |
| 12:00 | sunny | 20 °C | 0.0 mm | 7 km/h |
| 13:00 | sunny | 22 °C | 0.0 mm | 9 km/h |
| 14:00 | sunny | 24 °C | 0.0 mm | 11 km/h |
| 15:00 | sunny | 24 °C | 0.0 mm | 10 km/h |
| 16:00 | sunny | 24 °C | 0.0 mm | 8 km/h |
| 17:00 | mostly sunny | 24 °C | 0.0 mm | 6 km/h |
| 18:00 | partly cloudy | 23 °C | 0.0 mm | 4 km/h |
| 19:00 | partly cloudy | 21 °C | 0.0 mm | 2 km/h |
| 20:00 | sunny | 19 °C | 0.0 mm | 3 km/h |
| 21:00 | partly cloudy | 15 °C | 0.0 mm | 6 km/h |
| 22:00 | partly cloudy | 15 °C | 0.0 mm | 6 km/h |
| 23:00 | overcast | 15 °C | 0.0 mm | 6 km/h |
Tomorrow, Monday 28 Sep, in La Chaux (Cossonay): overcast, 13 to 24 °C, wind up to 7 km/h. No precipitation expected.
This weekend in La Chaux (Cossonay): Saturday fog, 12 to 21 °C; Sunday mostly sunny, 11 to 24 °C.
Yes: 2 days with precipitation are expected in La Chaux (Cossonay) over the next 7 days, 18.7 mm in total. Wettest day: Thursday 1 Oct (15.0 mm).
The best day of the next 7 in La Chaux (Cossonay): Sunday 27 Sep, mostly sunny, up to 24 °C.
From 20 Sep to 26 Sep: 16.2 °C on average, 2.0 °C above the September normal (14.2 °C), 0 mm of precipitation (7-day normal: 20 mm). Warmest day: saturday 26 Sep (24 °C); coolest night: saturday 26 Sep (9 °C).
| Day | Min | Max | Rain |
|---|---|---|---|
| Sun 20 Sep | 10 °C | 24 °C | 0.0 mm |
| Mon 21 Sep | 11 °C | 22 °C | 0.0 mm |
| Tue 22 Sep | 11 °C | 21 °C | 0.0 mm |
| Wed 23 Sep | 10 °C | 22 °C | 0.0 mm |
| Thu 24 Sep | 9 °C | 22 °C | 0.0 mm |
| Fri 25 Sep | 10 °C | 23 °C | 0.0 mm |
| Sat 26 Sep | 9 °C | 24 °C | 0.0 mm |
Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.
In La Chaux (Cossonay) (591 m), the mean annual temperature is 9.8 °C. The warmest month is July (18.9 °C on average) and the coldest January (1.5 °C). About 985 mm of precipitation falls per year, peaking in August (99 mm) with a minimum in February (57 mm). The sun shines for about 1911 hours a year, mostly in July (254 h). On average there are 67 frost days and 11 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.2 °C and the absolute minimum −8.1 °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 | 1.5 °C | 10.8 °C | −8.1 °C | 69 | 72 | 16 | 0 |
| Feb | 2.0 °C | 12.6 °C | −7.9 °C | 57 | 100 | 15 | 0 |
| Mar | 5.4 °C | 17.5 °C | −4.9 °C | 59 | 163 | 10 | 0 |
| Apr | 9.1 °C | 21.8 °C | −1.9 °C | 70 | 187 | 3 | 0 |
| May | 13.2 °C | 26.2 °C | 2.5 °C | 95 | 201 | 0 | 4 |
| Jun | 17.0 °C | 29.6 °C | 6.1 °C | 97 | 236 | 0 | 12 |
| Jul | 18.9 °C | 31.2 °C | 8.3 °C | 90 | 254 | 0 | 18 |
| Aug | 18.4 °C | 30.2 °C | 7.6 °C | 99 | 238 | 0 | 16 |
| Sep | 14.2 °C | 25.0 °C | 4.1 °C | 84 | 199 | 0 | 3 |
| Oct | 10.1 °C | 20.6 °C | 0.4 °C | 96 | 132 | 1 | 0 |
| Nov | 5.2 °C | 15.3 °C | −3.9 °C | 81 | 79 | 7 | 0 |
| Dec | 2.2 °C | 11.4 °C | −7.2 °C | 88 | 50 | 13 | 0 |
| Year | 9.8 °C | 31.2 °C | −8.1 °C | 985 | 1911 | 67 | 53 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Mathod (17 km, 435 m), Pully (19 km, 456 m), Bullet / La Frétaz (27 km, 1205 m), adjusted to the elevation of La Chaux (Cossonay) (591 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.