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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Penmarch Distance
Penmarch 4.1 km
Quimper 25.5 km
Pointe du Raz 50.6 km
Lanvéoc/Poulmic 53.1 km
Guipavas 70.9 km
Landivisiau 81.7 km
Groix 94.6 km
Brignogan-Plages 96.2 km
Morlaix/Ploujean 104.3 km
Ushant 108.8 km
Lorient South Brittany Airport 109.6 km
Le Talut 137.0 km
Lannion Airport 141.6 km
Ploumanac'h 148.5 km
Saint-Brieuc Armor 183.3 km
Saint-Nazaire 248.0 km
Saint-Sauveur 254.9 km
Guernsey Airport 263.6 km
Dinard/Pleurtuit 266.3 km
RNAS Culdrose 271.7 km
Plymouth MtBatten 282.8 km
Jersey Airport 283.9 km
Camborne 287.8 km
Rennes- Saint-Jacques Airport 290.7 km
Newquay Airport 300.3 km
Cardinham 300.3 km
Nantes Atlantique Airport 312.2 km
Alderney Channel Is 317.8 km
Scilly St Mary 319.5 km
North Wyke 331.1 km
Exeter Airport 340.4 km
Cap de la Hague 340.6 km
La Roche-sur-Yon 351.1 km
Dunkeswell Airport 359.3 km
RM Chivenor 363.2 km
Isle of Portland 366.0 km
Liscombe 371.8 km
Cherbourg - Maupertus Airport 378.3 km
Phare de Chassiron 380.1 km
La Rochelle Airport 394.2 km
Laval Airport 400.4 km
Yeovil 401.1 km
St Athan 411.0 km
Cardiff Airport 412.6 km
Angers 415.7 km
Mumbles 418.2 km
Bournemouth 431.5 km
Pembrey Burrows 432.9 km
Bristol / Lulsgate 435.1 km
Milford Haven 438.2 km
Angers 448.5 km
St. Catherine's Point 456.8 km
Caen 458.2 km
Niort 468.6 km
Larkhill 470.1 km
MoD Boscombe Down 470.5 km
Southampton Airport 473.4 km
Middle Wallop 481.8 km
Santander 484.8 km
RAF Lyneham 485.6 km
Santander / Parayas 490.4 km
Cap Ferret 493.0 km
Gijón 496.0 km
Thorney Island 505.3 km
Cognac - Châteaubernard Air Base 507.0 km
Asturias/Aviles 509.5 km
Biscarrosse 509.5 km
Cazaux 510.0 km
Gloucestershire Airport 513.5 km
Fairford Airport 514.6 km
Punta Galea Golf 514.6 km
Onton 514.7 km
Oviedo 523.8 km
Bordeaux/Merignac 524.5 km
Bilbao/Sondica 526.5 km
RAF Brize Norton 534.9 km
RAF Odiham 535.8 km
RAF Little Rissington 537.1 km
Puerto de san Isidro 538.2 km
Farnborough 553.4 km
Elgoibar 554.8 km
Benson 555.4 km
Oxford Airport 558.8 km
Brighton City Airport 562.0 km
San Sebastian / Igueldo 562.5 km
San Sebastian / Fuenterrabia 570.7 km
Ciboure 573.1 km
Biarritz/Anglet 575.3 km
Puerto Leitariegos 582.5 km
High Wycombe 582.7 km
Dax 585.2 km
Charlwood 587.9 km
Gatwick Airport 592.3 km
Heathrow Airport 593.9 km
Northolt 600.0 km
Mont-de-Marsan 608.2 km
Kenley 611.1 km
Roches Point 619.9 km
St James's Park 622.1 km
Lugo/Rozas 626.4 km