Retro.yr is shutting down on October 4th. These pages will no longer be available. We have launched a new website that we are continuously adding content to. Read more about the transition inthis article.

Weather forecast forKosa, Skien (Vestfold og Telemark)

  1. Applies to Telemark

    Locally much rain can be expected in Telemark from Monday afternoon until Tuesday morning. The amounts will vary from place to place, but for many around 40 mm in a 24 hours period, and in a few places 50-70 mm.

    Yellow severity - moderate danger
    Orange severity - considerable danger
    Red severity - extreme danger
    The colour tells you how severe the situation can become (

    InstructionsConsider the need for preventive measures.

    ConsequencesRisk of flooding of low-lying areas in densely populated areas.


    1. Monday September 27, 2021 18:00 - Increasing danger
    2. Tuesday September 28, 2021 07:00 - Danger is over
    Map of heavy rain, yellow level, Telemark, 27 September 16:00 UTC to 28 September 05:00 UTC.
Today, Sunday 26/09/2021
Time Forecast Temp. Precipitation Wind
Partly cloudy.
13° 0 mm Light air, 1 m/s from eastLight air, 1 m/s from east
Tomorrow, Monday 27/09/2021
Time Forecast Temp. Precipitation Wind
0 – 0.6 mm Light breeze, 2 m/s from north-northeastLight breeze, 2 m/s from north-northeast
11° 0.8 – 8.4 mm Light breeze, 3 m/s from northeastLight breeze, 3 m/s from northeast
Heavy rain.
10° 4.8 – 21.4 mm Gentle breeze, 4 m/s from northeastGentle breeze, 4 m/s from northeast
Heavy rain.
13° 7.5 – 29.4 mm Gentle breeze, 5 m/s from eastGentle breeze, 5 m/s from east
Tuesday, 28/09/2021
Time Forecast Temp. Precipitation Wind
Heavy rain.
13° 7.2 – 19.5 mm Moderate breeze, 6 m/s from southeastModerate breeze, 6 m/s from southeast
12° 0 – 1.5 mm Light breeze, 2 m/s from south-southwestLight breeze, 2 m/s from south-southwest
14° 0 mm Light air, 1 m/s from east-southeastLight air, 1 m/s from east-southeast
Partly cloudy.
14° 0 mm Light breeze, 2 m/s from south-southeastLight breeze, 2 m/s from south-southeast

"Observations" has moved

You will find this content on our new website under the weather forecast.

You can read more about the ongoing changes here.

The meteorologist’s text forecast

You will find the text forecast at this page.


Sun and moon, 26/09/2021
Sun Moon
; Sunrise 07:15 ; Moonrise 20:33
Sunset 19:08 Moonset 13:57

Webcams close to Kosa

Brevik: Porsgrunn Skateparken

Brevik: Porsgrunn Skateparken, Brevik
Last updated: at 18:56
Distance: 7,7 km
Added by porsgrunn.kommune.no4086.

Sundvollen: Langangen

Sundvollen: Langangen, Sundvollen
Last updated: at 18:09
Distance: 13,0 km
Added by Langangen.


Brevik, Brevik
Last updated: at 18:54
Distance: 13,0 km
Added by admin.

Hvarnes: F Rienlia (Rienlia)

Hvarnes: F Rienlia (Rienlia), Hvarnes
Last updated: at 18:24
Distance: 13,7 km
Added by Statens vegvesen.

Do you have a webcam? Add it to Yr

Webcams provided by

Places nearby

Kåsa (farm, 76 m away), Skifjellhytta (other culture detail, 122 m away), Lille Skifjell (farm, 173 m away), Skifjellvegen (road, 304 m away), Igletjenn (pond, 395 m away), Rekåa (stream, 397 m away), Skifjelløken (quiet inlet, 505 m away), Ormetjenn (pond, 655 m away), Ålekaret (small pond, 838 m away), Stubberød (farm, 843 m away), Åsterødgrinda (field gate, 844 m away), Stubberød (farm, 850 m away), Søåsen (hill, 850 m away), Torkelsåsen (hill, 934 m away), Bikkjeholbekken (stream, 970 m away), Dalatjenn (pond, 987 m away), Store Skifjell (farm, 1051 m away), Åsterød (farm, 1113 m away), Bjønnespranget (hill, 1287 m away), Broken (lake, 1323 m away)

Latitude/longitude: 59°12′06″N 09°43′51″E
Decimal coordinates: 59.2019 9.7310

Altitude: 143 m.

See it on: or Google Maps

Free weather data (Javascript- or XML-forecasts)

Norwegian Mapping and Cadastre Authority

Norwegian place names are regulated by the Norwegian Mapping and Cadastre Authority. Last updated in February 2015.

Approved names: Kosa (accepted by the Mapping Authority in 1990).
Not approved: Kåsa (rejected in 1964).

Category: Farm
Municipality: Skien, Vestfold og Telemark.
SSR-ID: 31354 (31457)