Macau, Brazil

1. Fri8 PM80°22 mph
2. 9 PM80°21 mph
3. 10 PM79°19 mph
4. 11 PM79°18 mph
5. Sat12 AM78°18 mph
6. 1 AM78°15 mph
7. 2 AM78°14 mph
8. 3 AM78°14 mph
9. 4 AM77°15 mph
10. 5 AM77°16 mph
11. 6 AM77°15 mph
12. 7 AM79°15 mph
13. 8 AM83°14 mph
14. 9 AM87°14 mph
15. 10 AM90°13 mph
16. 11 AM92°15 mph
17. 12 PM94°22 mph
18. 1 PM91°26 mph
19. 2 PM91°28 mph
20. 3 PM91°32 mph
21. 4 PM91°32 mph
22. 5 PM89°30 mph
23. 6 PM85°27 mph
24. 7 PM83°28 mph
25. 8 PM81°26 mph
26. 9 PM80°25 mph
27. 10 PM79°23 mph
28. 11 PM78°22 mph
29. Sun12 AM78°21 mph
30. 1 AM78°20 mph
31. 2 AM77°19 mph
32. 3 AM77°18 mph
33. 4 AM76°17 mph
34. 5 AM76°16 mph
35. 6 AM76°16 mph
36. 7 AM79°18 mph
37. 8 AM83°16 mph
38. 9 AM87°14 mph
39. 10 AM90°14 mph
40. 11 AM93°16 mph
41. 12 PM92°25 mph
42. 1 PM90°26 mph
43. 2 PM88°29 mph
44. 3 PM88°30 mph
45. 4 PM88°31 mph
46. 5 PM88°31 mph
47. 6 PM85°28 mph
48. 7 PM82°28 mph

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

1. TodaySep 2580°77°Partly cloudy—wind 22 mph
2. SatSep 2694°76°Partly cloudy—wind 32 mph
3. SunSep 2793°77°Partly cloudy—wind 31 mph
4. MonSep 2886°77°Light rain showers—0.03 inwind 23 mph
5. TueSep 2987°77°Light rain—0.04 inwind 26 mph
6. WedSep 3090°77°Mostly clear—wind 26 mph
7. ThuOct 188°77°Clear—wind 22 mph
8. FriOct 286°77°Cloudy—wind 22 mph
9. SatOct 388°76°Rain showers—0.04 inwind 26 mph
10. SunOct 490°76°Cloudy—wind 27 mph
11. MonOct 588°76°No forecast—wind 19 mph
12. TueOct 6~83°77°Model mean
13. WedOct 7~83°78°Model mean
14. ThuOct 8~83°77°Model mean
15. FriOct 9~83°77°Model mean
16. SatOct 10~81°75°Model mean

• Feels like85°
• WindE 22 mph
• Humidity75%
• Dew point72°
• Pressure29.96 inHg
• UV index0 · Lowclear-sky peak 13 Saturday
• Sunrise and sunsetSunrise · Sunset · set
• Moonrise4:35 PMMoonset 4:14 AM
• Moon phaseWaxing gibbous99% 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.

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 3 AM to 3 PM 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 Friday, rated best.

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index · Solunar tables for Macau, 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. Tonight77° · ESE 14–22 mph

   Partly cloudy. Low near 25°C. Eastsoutheast wind 22 to 36 km/h.

2. Saturday94° · E 14–32 mph

   Partly cloudy. High near 34°C. East wind 22 to 51 km/h.

3. Saturday Night76° · ESE 16–28 mph

   Clear. Low near 25°C. Eastsoutheast wind 26 to 45 km/h.

4. Sunday93° · ENE 14–31 mph

   Partly cloudy. High near 34°C. Eastnortheast wind 22 to 50 km/h.

5. Sunday Night77° · E 18–29 mph

   Mostly clear. Low near 25°C. East wind 29 to 46 km/h.

6. Monday86° · E 14–22 mph

   Light rain showers. High near 30°C. East wind 23 to 36 km/h. Precipitation around 0.7 mm.

7. Monday Night77° · ESE 12–17 mph

   Clear. Low near 25°C. Eastsoutheast wind 19 to 28 km/h.

8. Tuesday87° · E 12–26 mph

   Light rain. High near 31°C. East wind 20 to 42 km/h. Precipitation around 0.9 mm.

9. Tuesday Night77° · ESE 14–19 mph

   Cloudy. Low near 25°C. Eastsoutheast wind 22 to 30 km/h.

10. Wednesday90° · E 15–25 mph

    Mostly clear. High near 32°C. East wind 24 to 41 km/h.

11. Wednesday Night77° · E 14–21 mph

    Clear. Low near 25°C. East wind 22 to 34 km/h.

12. Thursday88° · ENE 14–22 mph

    Clear. High near 31°C. Eastnortheast wind 22 to 35 km/h.

13. Thursday Night77° · E 14–18 mph

    Clear. Low near 25°C. East wind 22 to 29 km/h.

14. Friday86° · ENE 16–22 mph

    Cloudy. High near 30°C. Eastnortheast wind 25 to 36 km/h.

15. Friday Night77° · ESE 12–19 mph

    Clear. Low near 25°C. Eastsoutheast wind 20 to 30 km/h.

16. Saturday88° · ENE 13–25 mph

    Rain showers. High near 31°C. Eastnortheast wind 21 to 41 km/h. Precipitation around 1.1 mm.

17. Saturday Night76° · ESE 9–21 mph

    Clear. Low near 25°C. Eastsoutheast wind 14 to 33 km/h.

18. Sunday90° · ENE 9–27 mph

    Cloudy. High near 32°C. Eastnortheast wind 15 to 44 km/h.

19. Sunday Night76° · ESE 11–19 mph

    Mostly clear. Low near 25°C. Eastsoutheast wind 18 to 30 km/h.

20. Monday88° · ESE 14 mph

    No forecast. High near 31°C. Eastsoutheast wind around 23 km/h.

Climate of Macau: 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.