Wyk auf Föhr, Germany

1. Tue11 PM64°17 mph
2. Wed12 AM63°16 mph
3. 1 AM63°16 mph
4. 2 AM62°15 mph
5. 3 AM62°15 mph
6. 4 AM61°17 mph
7. 5 AM61°19 mph
8. 6 AM61°19 mph
9. 7 AM60°18 mph
10. 8 AM60°18 mph
11. 9 AM60°18 mph
12. 10 AM61°19 mph
13. 11 AM62°19 mph
14. 12 PM64°17 mph
15. 1 PM66°16 mph
16. 2 PM67°16 mph
17. 3 PM68°15 mph
18. 4 PM68°13 mph
19. 5 PM68°13 mph
20. 6 PM67°13 mph
21. 7 PM66°12 mph
22. 8 PM65°14 mph
23. 9 PM64°15 mph
24. 10 PM63°15 mph
25. 11 PM62°15 mph
26. Thu12 AM62°16 mph
27. 1 AM61°17 mph
28. 2 AM61°17 mph
29. 3 AM60°1%17 mph
30. 4 AM60°2%17 mph
31. 5 AM60°2%17 mph
32. 6 AM60°2%17 mph
33. 7 AM60°3%17 mph
34. 8 AM60°9%16 mph
35. 9 AM60°14%15 mph
36. 10 AM60°18%14 mph
37. 11 AM60°25%13 mph
38. 12 PM61°39%12 mph
39. 1 PM61°52%12 mph
40. 2 PM61°61%11 mph
41. 3 PM61°66%9 mph
42. 4 PM61°60%11 mph
43. 5 PM62°52%7 mph
44. 6 PM62°55%6 mph
45. 7 PM62°62%3 mph
46. 8 PM61°57%5 mph
47. 9 PM61°52%5 mph
48. 10 PM61°58%5 mph

Scroll sideways for more hours. Pick an hour for every number.

1. TodaySep 2964°64°Mostly clear0%wind 17 mph · gusts 24 mph
2. WedSep 3068°61°Partly cloudy0%wind 19 mph · gusts 28 mph
3. ThuOct 162°60°Heavy rain66%0.49 inwind 17 mph · gusts 25 mph
4. FriOct 262°58°Cloudy48%wind 7 mph
5. SatOct 362°57°Partly cloudy24%wind 10 mph
6. SunOct 460°60°Partly cloudy20%wind 9 mph
7. MonOct 562°60°Cloudy18%wind 13 mph
8. TueOct 662°59°Cloudy14%wind 12 mph
9. WedOct 761°56°Rain showers34%0.16 inwind 12 mph
10. ThuOct 858°56°Partly cloudy38%0.03 inwind 16 mph
11. FriOct 958°57°Cloudy24%wind 17 mph
12. SatOct 10~58°55°Model mean0.25 in
13. SunOct 11~55°54°Model mean0.25 in
14. MonOct 12~56°53°Model mean0.18 in
15. TueOct 13~58°52°Model mean0.40 in
16. WedOct 14~56°53°Model mean0.04 in

• Feels like64°
• WindESE 17 mphgusts 24 mph
• Humidity76%
• Dew point56°
• Pressure30.16 inHg
• UV index0 · Lowclear-sky peak 3 Wednesday
• Sunrise and sunsetSunrise · Sunset · set
• Moonrise7:26 PMMoonset 11:21 AM
• Moon phaseWaning gibbous91% lit

Each line is one model’s own forecast at its own grid cell: three kilometers for HRRR, a quarter of a degree for the global models, which can sit a few hundred meters above or below the town. Where they agree the forecast is settled; where they part is where it is not.

NWS gridGFSGEFS ± spreadECMWFECMWF AI

A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.

ECMWF ensemble meteogram

10 daysTemperature plume

None of these is a measurement. Each is a rating of the forecast ahead, and of what is happening at the point right now, against what the activity or the ailment is known to mind, and each names the figure that decided it. An ailment or a pest is rated as a risk, low to extreme; an activity, a chore or a journey as a condition, poor to ideal.

The sun is down, so each rating says which span it is for: tomorrow’s daylight, tonight, or the next 24 hours.

Tonight has no dark, clear hour without a bright moon in this forecast. Rated fair.

The last night runs past the end of the forecast and is rated on the hours it covers.

Dark is the sun 18 degrees below the horizon; where it never gets that low, 12 degrees, marked nautical. Clear is sky cover of 20% or less. A bright moon is one above the horizon with a quarter or more of its disc lit. Transparency in the table is estimated from surface humidity (70% and 85% mark fair and poor) and visibility, since the forecast carries no haze or high cloud moisture. Seeing and transparency by hour, where shown, are Environment and Climate Change Canada’s astronomy forecast (regional model; seeing from cloud, wind shear, turbulence near the ground and the surface temperature trend; transparency from the moisture through the whole air column), under the Open Government Licence - Canada. Dew is the air within 2 °C of its dew point. Excellent is four or more clear moonless hours with good transparency; good is three; fair is one, or two clear hours.

Golden hour is the sun between 6 degrees above the horizon and 4 degrees below it; blue hour is the sun between 4 and 6 degrees below. These are the definitions timeanddate.com and PhotoPills use. Directions are degrees clockwise from true north, where the sun’s upper edge and the moon’s center cross a flat horizon; hills and buildings change both. None means the sun does not reach that height on the day; all day means it stays inside the band.

Hours fit for spraying, and the days dry enough for fieldwork and hay, read from this forecast’s wind, gusts, humidity, temperature and rain.

Spraying windows

• Sun 2 PM to Mon 2 AM 12 hours, every hour within the rules

Good Marginal No

Field days

Spraying: sustained wind 3 to 10 mph, the range US extension services and most labels give; gusts no more than 15 mph (this page’s limit); delta T (air minus wet-bulb temperature) 2 to 8 °C preferred and 8 to 10 °C marginal, from GRDC guidance, with the wet bulb by Stull’s formula; no hour at a 30% chance of rain or 0.25 mm forecast during the rain-free time. Follow the product label, which overrides all of this. Field days: dry is no daytime hour at a 30% chance and under 1 mm all day, wet is 6 mm (0.25 in) or more; soil moisture is not in the forecast, so ground still wet from earlier rain is not accounted for. Hay drying marks a dry day with humidity down to 50% and a breeze of 5 mph or more.

The best-rated day this week is Tuesday, rated good.

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index · Solunar tables for Wyk auf Föhr, by month

Major periods are two hours centered on the moon’s passage overhead and underfoot; minor periods are one hour centered on moonrise and moonset: the conventional durations of John Alden Knight’s solunar tables (1936). The rating is this site’s: one point to start, two more within a day and a half of a new or full moon (one more within three and a half days), and one more when a period falls within an hour of sunrise or sunset. The theory has mixed support in fisheries research; the times are exact astronomy.

1. Tonight61° · ESE 15–19 mph

   Mostly clear. Low near 16°C. Eastsoutheast wind 24 to 31 km/h. Chance of precipitation is 0%.

2. Wednesday68° · ESE 12–19 mph

   Partly cloudy. High near 20°C. Eastsoutheast wind 20 to 30 km/h. Chance of precipitation is 0%.

3. Wednesday Night60° · 2% · ESE 12–17 mph

   Partly cloudy. Low near 15°C. Eastsoutheast wind 19 to 28 km/h. Chance of precipitation is 2%.

4. Thursday62° · 66% · SSE 7–17 mph

   Heavy rain. High near 17°C. Southsoutheast wind 11 to 28 km/h. Chance of precipitation is 66%. Precipitation around 11 mm.

5. Thursday Night60° · 62% · W 3–6 mph

   Light rain. Low near 16°C. West wind 5 to 10 km/h. Chance of precipitation is 62%. Precipitation around 1.0 mm.

6. Friday62° · 34% · WNW 4–7 mph

   Cloudy. High near 17°C. Westnorthwest wind 6 to 11 km/h. Chance of precipitation is 34%.

7. Friday Night58° · 4% · SSW 4–6 mph

   Partly cloudy. Low near 15°C. Southsouthwest wind 6 to 10 km/h. Chance of precipitation is 4%.

8. Saturday62° · 24% · SSW 9–10 mph

   Partly cloudy. High near 17°C. Southsouthwest wind 14 to 16 km/h. Chance of precipitation is 24%.

9. Saturday Night57° · 20% · WNW 7–8 mph

   Partly cloudy. Low near 14°C. Westnorthwest wind 12 to 13 km/h. Chance of precipitation is 20%.

10. Sunday60° · 10% · W 6–9 mph

    Partly cloudy. High near 16°C. West wind 10 to 15 km/h. Chance of precipitation is 10%.

11. Sunday Night60° · 18% · WSW 9–12 mph

    Partly cloudy. Low near 15°C. Westsouthwest wind 14 to 20 km/h. Chance of precipitation is 18%.

12. Monday62° · 14% · W 12–14 mph

    Cloudy. High near 17°C. West wind 20 to 22 km/h. Chance of precipitation is 14%.

13. Monday Night60° · 8% · W 11–12 mph

    Cloudy. Low near 16°C. West wind 18 to 19 km/h. Chance of precipitation is 8%.

14. Tuesday62° · 14% · WSW 11–11 mph

    Cloudy. High near 17°C. Westsouthwest wind 17 to 18 km/h. Chance of precipitation is 14%.

15. Tuesday Night59° · 26% · WSW 11 mph

    Cloudy. Low near 15°C. Westsouthwest wind around 17 km/h. Chance of precipitation is 26%.

16. Wednesday61° · 26% · WNW 11–11 mph

    Rain showers. High near 16°C. Westnorthwest wind 17 to 18 km/h. Chance of precipitation is 26%. Precipitation around 2 mm.

17. Wednesday Night56° · 38% · WNW 12–14 mph

    Rain. Low near 13°C. Westnorthwest wind 19 to 22 km/h. Chance of precipitation is 38%. Precipitation around 3 mm.

18. Thursday58° · 24% · NW 12–16 mph

    Partly cloudy. High near 14°C. Northwest wind 20 to 26 km/h. Chance of precipitation is 24%.

19. Thursday Night56° · 24% · WNW 13–14 mph

    Partly cloudy. Low near 13°C. Westnorthwest wind 21 to 23 km/h. Chance of precipitation is 24%.

20. Friday58° · 22% · WSW 16–16 mph

    Cloudy. High near 15°C. Westsouthwest wind 25 to 26 km/h. Chance of precipitation is 22%.

21. Friday Night57° · WSW 17 mph

    No forecast. Low near 14°C. Westsouthwest wind around 27 km/h.

Climate of Wyk auf Föhr: normals, records and every month

The forecast office edits about sixty fields for every cell of its grid. The common ones are above; these are the rest, as the daily extreme, for anyone who needs the mixing height, the fire danger or the swell.