Worldwide Ski Resort Forecasts
Colour guide Temperature · Wind · Rain · Snow
Each colour starts at the value shown. Wind colours match across all three units. Dry cells stay neutral. Colours describe the displayed values, not official weather warnings.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
Forecast values and model notes
Marmari Kos - base
ECMWF IFS · Run 2026-10-17 00:00:00 UTC · 10 days · Times: UTC.
Coordinates: 36.87°N, 27.13°E · Requested elevation: 2 m. Model terrain: 40 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 17/10 00:00 18.1 62 19 10 3B NW — — 1010 2571 Overcast 100% cloud  03:00 16.7 70 17 9 3B N 1.1 0 1010 2492 Overcast 100% cloud 06:00 16 72 21 12 4B N 4.3 0 1010 2307 Overcast 100% cloud 09:00 16.3 73 27 15 4B N 5.8 0 1010 2271 Overcast 88% cloud 12:00 17.9 61 29 16 5B NW 0.36 0 1010 2243 Partly cloudy 20% cloud  15:00 18 64 30 16 5B NW 0.64 0 1012 2300 Clear 18% cloud  18:00 17.8 62 30 16 5B N 0.23 0 1015 2336 Clear 4% cloud 21:00 17.4 64 25 13 4B N 0.02 0 1017 2501 Clear 2% cloud Sunday, 18/10 00:00 16.9 65 21 11 4B N 0 0 1018 2723 Clear 13% cloud 03:00 16.7 63 19 10 3B N 0 0 1019 2838 Clear 4% cloud 06:00 17.2 61 19 10 3B N 0 0 1020 2891 Clear 0% cloud 09:00 18.1 57 18 10 3B NW 0 0 1021 2975 Clear 0% cloud 12:00 18.6 55 21 11 4B NW 0 0 1021 3068 Clear 0% cloud 15:00 18.6 59 22 12 4B NW 0 0 1020 3151 Clear 0% cloud 18:00 18.8 62 20 11 4B NW 0 0 1021 3084 Partly cloudy 20% cloud 21:00 18.9 63 20 11 4B NW 0.04 0 1021 3063 Partly cloudy 31% cloud Monday, 19/10 00:00 18.9 62 20 11 4B NW 0.08 0 1020 3159 Clear 11% cloud 03:00 18.7 59 21 12 4B N 0.00 0 1020 3358 Clear 1% cloud 06:00 18.9 58 23 12 4B N 0 0 1021 3362 Clear 0% cloud 09:00 19.6 53 23 12 4B N 0 0 1021 3394 Clear 0% cloud 12:00 20 57 25 14 4B NW 0 0 1020 3406 Clear 0% cloud 15:00 20 61 26 14 4B NW 0 0 1020 3434 Clear 0% cloud 18:00 20 62 24 13 4B NW 0 0 1020 3441 Clear 0% cloud 21:00 20 58 22 12 4B NW 0 0 1020 3438 Clear 0% cloud Tuesday, 20/10 00:00 19.7 62 22 12 4B N 0 0 1020 3527 Clear 0% cloud 03:00 19.4 65 23 12 4B N 0 0 1020 3495 Clear 0% cloud 06:00 19.6 63 22 12 4B N 0 0 1021 3487 Clear 7% cloud 09:00 20.5 55 17 9 3B N 0 0 1022 3495 Clear 1% cloud 12:00 21.3 52 17 9 3B NW 0 0 1021 3543 Clear 0% cloud 15:00 20.9 57 17 9 3B NW 0.01 0 1022 3566 Clear 0% cloud 18:00 20.9 60 15 8 3B N 0 0 1022 3553 Clear 0% cloud 21:00 20.9 62 14 8 3B N 0 0 1023 3578 Clear 0% cloud Wednesday, 21/10 00:00 20.5 67 14 8 3B N 0 0 1022 3587 Clear 2% cloud 03:00 19.9 73 14 8 3B N 0 0 1022 3630 Clear 3% cloud 06:00 20.5 67 17 9 3B N 0 0 1023 3657 Clear 2% cloud 09:00 21.8 56 16 9 3B N 0 0 1023 3698 Clear 1% cloud 12:00 22.7 51 17 9 3B NW 0 0 1021 3734 Clear 0% cloud 15:00 21.9 64 20 11 4B NW 0 0 1021 3787 Clear 5% cloud 18:00 21.7 69 17 9 3B NW 0 0 1021 3784 Partly cloudy 30% cloud 21:00 21.5 71 17 9 3B NW 0 0 1021 3740 Overcast 96% cloud Thursday, 22/10 00:00 21.2 72 17 9 3B NW 0 0 1021 3702 Overcast 95% cloud 03:00 20.7 74 15 8 3B NW 0 0 1020 3667 Overcast 96% cloud 06:00 21 73 13 7 3B N 0 0 1020 3632 Cloudy 64% cloud  09:00 22.1 64 11 6 2B NW 0 0 1020 3650 Partly cloudy 29% cloud 12:00 22.6 63 15 8 3B NW 0 0 1019 3664 Clear 0% cloud 15:00 21.8 69 11 6 2B NW 0 0 1019 3672 Clear 0% cloud 18:00 21.2 73 11 6 2B NW 0 0 1019 3624 Clear 0% cloud 21:00 21.1 73 10 5 2B NW 0 0 1019 3590 Clear 0% cloud Friday, 23/10 00:00 20.9 74 7 4 2B NW 0 0 1018 3546 Clear 0% cloud 06:00 20.6 80 2 1 1B SE 0.00 0 1017 3513 Clear 16% cloud 12:00 22.6 69 7 4 2B S 0 0 1017 3514 Clear 0% cloud 18:00 21.5 73 10 5 2B S 0 0 1016 3532 Clear 2% cloud Saturday, 24/10 00:00 21.3 76 12 6 2B SE 0 0 1015 3511 Clear 1% cloud 06:00 21.8 78 16 8 3B SE 0 0 1016 3517 Clear 4% cloud 12:00 22.8 76 16 9 3B S 0 0 1015 3693 Partly cloudy 25% cloud 18:00 21.5 84 9 5 2B S 0 0 1015 3126 Partly cloudy 45% cloud Sunday, 25/10 00:00 20.7 87 4 2 1B SW 0 0 1015 3119 Overcast 86% cloud 06:00 21.2 82 3 2 1B SW 0.01 0 1016 3119 Overcast 100% cloud 12:00 22.3 72 10 5 2B W 0.17 0 1015 3113 Overcast 93% cloud 18:00 21.3 79 10 6 2B NW 0.35 0 1016 3117 Clear 11% cloud Monday, 26/10 00:00 21 79 17 9 3B NW 0.39 0 1016 3111 Clear 18% cloud 06:00 20.4 83 20 11 3B N 0.13 0 1017 3115 Clear 19% cloud 12:00 21.7 73 21 11 4B NW 0.00 0 1017 3121 Clear 1% cloud 18:00 21.3 75 26 14 4B NW 0 0 1018 3132 Clear 0% cloud Tuesday, 27/10 00:00 20.9 72 24 13 4B N 0 0 1018 3132 Clear 0% cloud |
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