Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 31

Waning Gibbous 83%

21:16

12:12

21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 Bad
19 Good
20 Bad

Sun - Rise: 06:57, Set: 20:27, Transit: 13:42. Moon - Rise: 21:16, Set: 12:12. Civil Dark: 21:04 - 06:22. Nautical Dark: 21:46 - 05:40. Astro Dark: 22:32 - 04:55

Total Clouds (% Sky Obscured)

48
56
75
93
91
100
93
97
99
81
90
93
86
63
61
73
75
60
61
47
47
52
14
63

Low Clouds (% Sky Obscured)

9
13
14
18
20
25
26
39
41
39
39
40
41
33
45
55
36
34
34
30
24
22
3
12

Medium Clouds (% Sky Obscured)

0
6
10
35
73
78
47
25
39
58
85
84
68
24
19
14
11
13
8
6
8
50
5
62

High Clouds (% Sky Obscured)

22
56
75
89
71
99
61
75
89
8
8
1
1
2
3
4
68
5
8
2
5
4
1
24

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
1
2
1
1
0
1
0
5
8
20
6
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
9
9
9
9
8
7
7
6
6
6
6
7
8
7
8
8
8
8
8
7
6
5
4

Chance of Frost

Temperature (°C)

18
17
16
15
15
15
15
15
15
15
15
15
16
16
18
19
20
20
21
21
21
21
20
19

Feels Like (°C)

18
16
15
14
14
14
13
13
13
14
15
14
14
15
18
18
18
19
20
19
20
19
19
19

Dew Point (°C)

14
14
14
13
13
13
13
13
14
14
14
14
13
11
11
10
8
7
7
6
6
6
8
9

Relative Humidity (%)

78
79
83
85
87
89
90
90
93
93
95
92
83
72
63
55
48
42
40
38
38
38
44
53

Pressure (mb)

1016
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1020
1020
1021
1021

Ozone (du)

319
317
316
315
315
316
316
315
314
312
312
312
311
311
311
312
312
313
313
313
315
315
315
316

Tuesday 1

Waning Gibbous 74%

21:34

13:38

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 OK
07 Bad
08 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:58, Set: 20:25, Transit: 13:42. Moon - Rise: 21:34, Set: 13:38. Civil Dark: 20:59 - 06:24. Nautical Dark: 21:43 - 05:42. Astro Dark: 22:29 - 04:57

Total Clouds (% Sky Obscured)

95
100
100
100
100
99
59
58
35
48
49
38
50
61
69
100
100
100
100
97
95
84
78
69

Low Clouds (% Sky Obscured)

9
8
7
2
0
0
0
0
0
8
7
6
12
27
22
22
33
51
76
36
82
75
60
14

Medium Clouds (% Sky Obscured)

16
63
4
51
28
37
59
58
35
48
34
38
50
33
43
24
33
22
41
34
20
50
18
21

High Clouds (% Sky Obscured)

93
100
100
100
100
82
15
15
20
25
25
0
1
5
30
100
100
100
100
27
29
20
10
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
5
6
7
20
3
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
3
1
2
4
4
4
4
4
5
5
5
6
7
8
8
8
8
10
8
7
5
4
3

Chance of Frost

Temperature (°C)

17
16
15
15
14
14
14
13
13
12
12
13
15
17
18
19
21
21
21
21
21
21
20
19

Feels Like (°C)

16
15
15
13
13
12
12
11
11
11
11
11
13
15
17
17
18
19
18
19
19
20
20
19

Dew Point (°C)

9
9
8
7
8
8
9
9
9
9
9
10
11
12
11
10
10
9
9
10
9
11
11
11

Relative Humidity (%)

59
61
60
61
63
67
71
74
79
81
83
83
78
73
63
55
49
45
45
50
46
51
54
56

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021

Ozone (du)

314
313
314
314
315
316
316
318
320
319
319
318
313
311
308
307
306
306
303
301
299
299
298
298

Wednesday 2

Waning Gibbous 63%

21:57

15:03

21 Bad
22 OK
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:00, Set: 20:23, Transit: 13:41. Moon - Rise: 21:57, Set: 15:03. Civil Dark: 20:57 - 06:26. Nautical Dark: 21:41 - 05:44. Astro Dark: 22:27 - 04:59

Total Clouds (% Sky Obscured)

61
36
55
59
61
55
56
58
68
86
72
74
92
87
87
93
98
97
97
95
91
86
66
59

Low Clouds (% Sky Obscured)

7
3
7
20
10
40
28
37
68
77
67
54
88
69
78
90
97
95
93
91
83
41
28
47

Medium Clouds (% Sky Obscured)

37
17
40
40
45
40
33
22
25
18
23
19
31
65
63
27
29
31
34
32
30
27
18
13

High Clouds (% Sky Obscured)

14
12
7
14
50
6
16
45
21
27
13
32
8
30
11
17
6
6
38
35
20
15
9
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
6
0
0
0
0
0
0
0
0
0
1
5
1
1
13
1
1
2
4
15
9
9
14

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
5
6
7
7
8
8
8
9
10
10
11
11
12
13
13
12
11
10
10
9
9
9

Chance of Frost

Temperature (°C)

18
17
16
16
16
16
16
16
16
16
16
16
17
18
19
20
20
21
21
21
22
22
22
21

Feels Like (°C)

17
18
17
16
16
16
16
16
15
14
14
15
15
16
17
17
18
19
20
20
20
21
21
21

Dew Point (°C)

11
11
12
12
13
13
13
13
13
12
12
12
13
14
13
14
15
14
15
15
15
15
16
17

Relative Humidity (%)

63
67
73
77
81
82
81
81
81
79
73
74
74
74
68
66
70
62
66
67
64
66
67
75

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020

Ozone (du)

297
297
297
296
295
295
294
293
291
290
288
289
288
287
287
286
285
284
284
284
285
284
284
283

Thursday 3

Waning Gibbous 51%

22:30

16:22

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 OK
06 Bad
07 Bad
08 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:01, Set: 20:21, Transit: 13:41. Moon - Rise: 22:30, Set: 16:22. Civil Dark: 20:55 - 06:27. Nautical Dark: 21:38 - 05:46. Astro Dark: 22:24 - 05:01

Total Clouds (% Sky Obscured)

74
85
82
74
75
69
33
23
24
38
48
29
57
48
68
53
73
75
85
95
95
96
96
94

Low Clouds (% Sky Obscured)

28
38
35
21
19
17
16
13
10
11
8
10
10
48
66
51
73
60
83
58
50
20
37
34

Medium Clouds (% Sky Obscured)

9
6
4
2
0
0
0
4
4
4
4
4
4
4
6
7
6
8
12
74
75
92
96
93

High Clouds (% Sky Obscured)

19
45
49
54
60
57
16
3
5
23
35
11
35
3
35
2
23
35
51
85
73
74
70
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
4
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
7
3
1
0
2
3
0
1
1
0
1
5
24
52
70
39
7
7
5
10
12
12
14

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
9
10
10
10
10
10
9
10
10
10
12
14
15
15
14
10
7
9
10
8
7
6

Chance of Frost

Temperature (°C)

20
20
19
19
19
19
19
19
19
19
19
19
20
21
23
23
24
23
24
24
24
23
22
21

Feels Like (°C)

21
20
19
18
18
17
18
18
18
18
17
16
19
18
20
20
22
22
24
24
23
23
22
22

Dew Point (°C)

17
18
18
18
18
17
17
17
17
17
17
16
17
16
16
18
19
21
18
18
16
16
15
15

Relative Humidity (%)

84
89
92
92
92
91
90
90
90
89
88
85
80
73
66
72
77
88
71
69
61
61
64
67

Pressure (mb)

1020
1020
1020
1019
1019
1019
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

284
284
284
284
283
282
282
281
280
281
282
283
283
283
282
283
283
285
288
290
291
291
292
293

Friday 4

Third Quarter 39%

23:18

17:27

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK

Sun - Rise: 07:03, Set: 20:19, Transit: 13:41. Moon - Rise: 23:18, Set: 17:27. Civil Dark: 20:52 - 06:29. Nautical Dark: 21:36 - 05:48. Astro Dark: 22:21 - 05:03

Total Clouds (% Sky Obscured)

92
89
90
96
100
100
99
99
99
99
99
86
77
68
67
65
64
61
59
66
62
50
39
38

Low Clouds (% Sky Obscured)

27
27
27
22
20
19
18
19
20
22
22
27
26
22
17
12
15
13
11
8
5
4
2
2

Medium Clouds (% Sky Obscured)

92
89
75
81
88
71
43
6
3
4
3
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

46
45
55
80
100
99
98
97
97
97
98
70
56
43
36
30
26
24
26
30
31
38
32
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
6
5
4
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
7
7
7
6
6
5
5
4
4
6
7
8
8
9
9
9
9
9
7
7
7

Chance of Frost

Temperature (°C)

21
20
19
19
18
18
17
17
16
16
15
15
15
17
18
19
20
21
21
21
21
20
19
17

Feels Like (°C)

20
19
19
18
17
17
17
16
15
14
13
13
13
13
13
14
15
15
20
19
18
19
19
19

Dew Point (°C)

14
15
15
15
15
15
15
15
15
13
12
11
10
9
8
7
7
6
5
5
5
6
7
8

Relative Humidity (%)

66
71
75
80
82
85
88
89
90
83
80
76
68
59
52
47
42
37
36
36
35
41
47
55

Pressure (mb)

1017
1017
1018
1018
1018
1019
1019
1019
1020
1020
1021
1022
1022
1023
1023
1024
1024
1024
1024
1024
1024
1025
1025
1025

Ozone (du)

295
295
295
297
298
298
300
302
302
302
303
303
303
302
301
300
299
298
297
296
295
294
292
291

Saturday 5

Waning Crescent 28%

00:24

18:15

21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 Bad
11 OK
12 OK
13 Good
14 OK
15 OK
16 OK
17 OK
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:04, Set: 20:16, Transit: 13:40. Moon - Rise: 00:24, Set: 18:15. Civil Dark: 20:50 - 06:31. Nautical Dark: 21:33 - 05:50. Astro Dark: 22:18 - 05:06

Total Clouds (% Sky Obscured)

36
32
27
24
22
26
31
36
38
41
41
44
47
54
39
26
12
19
24
29
44
62
79
79

Low Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
2
2
9
16
22
30
38
41
43
38
32
22
13
4
8
14
19
17
14
11
5

High Clouds (% Sky Obscured)

30
28
24
22
20
25
25
24
16
8
2
10
17
25
18
14
8
8
8
8
31
52
73
73

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
3
3
3
3
3
3
3
3
3
3
3
3
4
5
4
4
3
4
4
5
4
3
3

Chance of Frost

Temperature (°C)

16
15
14
13
13
12
12
12
11
11
11
12
14
16
18
19
21
22
23
23
24
23
21
20

Feels Like (°C)

14
15
14
14
14
14
12
12
12
12
12
12
12
13
13
14
15
15
24
23
23
23
24
24

Dew Point (°C)

8
9
8
9
9
9
9
9
9
8
8
8
8
8
7
6
5
4
4
3
3
3
4
4

Relative Humidity (%)

59
65
69
72
75
79
80
81
83
81
80
79
67
57
49
41
36
30
29
27
24
27
31
35

Pressure (mb)

1026
1026
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1023
1022
1022
1022
1021

Ozone (du)

290
289
288
287
287
287
287
287
288
290
292
294
294
293
293
293
294
295
294
294
294
293
291
290

Sunday 6

Waning Crescent 18%

01:45

18:49

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 OK

Sun - Rise: 07:06, Set: 20:14, Transit: 13:40. Moon - Rise: 01:45, Set: 18:49. Civil Dark: 20:48 - 06:32. Nautical Dark: 21:31 - 05:52. Astro Dark: 22:15 - 05:08

Total Clouds (% Sky Obscured)

81
81
88
94
100
96
92
88
89
90
90
80
69
58
54
49
45

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
5
10
14
19
31
42
54
56
58
61
43
25
8
7
7
6

High Clouds (% Sky Obscured)

72
71
81
90
100
94
85
67
64
59
56
56
69
58
54
49
45

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
4
3
3
3
3
4
4
4
4
4
4
4
5
5
5

Chance of Frost

Temperature (°C)

19
18
18
17
17
17
17
17
16
16
16
16
18
20
22
24
25

Feels Like (°C)

18
18
18
18
18
17
14
14
15
15
15
15
15
15
16
17
18

Dew Point (°C)

4
4
4
4
4
4
4
4
4
4
4
5
5
4
5
4
4

Relative Humidity (%)

37
38
40
41
41
42
43
42
43
44
44
45
40
35
31
28
25

Pressure (mb)

1021
1021
1021
1021
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

289
288
287
287
287
288
288
288
289
290
290
291
290
290
290
290
291

Forecast for Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 31/08/26 21:15:40. Forecast: 31/08/26 to 06/09/26. Timezone: UTC+2.00