Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 72%

12:33

02:34

23 Good
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
21 OK
22 Bad

Sun - Rise: 08:45, Set: 16:36, Transit: 12:41. Moon - Rise: 12:33, Set: 02:34. Civil Dark: 17:17 - 08:05. Nautical Dark: 18:00 - 07:21. Astro Dark: 18:41 - 06:41

Total Clouds (% Sky Obscured)

18
51
60
86
93
96
96
100
94
86
84
86
85
97
92
97
90
93
77
92
65
87
24
67

Low Clouds (% Sky Obscured)

18
51
60
86
90
85
85
85
80
80
79
81
78
95
92
97
90
93
77
91
62
86
20
63

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

5
7
4
9
14
15
10
18
10
2
1
1
2
3
6
7
2
2
1
18
11
7
1
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 (%)

5
8
88
98
100
100
100
100
100
100
100
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
7
8
4
7
13
11
5
7
4
1
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
5
6
5
4
3
2
2
3
3
3
4
4
5
6
7
7
6
6
7
7
9
9
11

Chance of Frost

Temperature (°C)

-3
-3
-2
-1
-1
-0
-0
0
0
0
1
1
3
4
5
5
5
5
5
5
5
5
5
5

Feels Like (°C)

-5
-4
-4
-2
-2
-3
-3
-3
-3
-3
-1
0
1
2
1
2
2
2
1
1
1
-0
0
-1

Dew Point (°C)

-5
-5
-4
-3
-2
-1
-1
-1
-1
-1
-1
0
0
1
1
1
2
2
2
2
2
-1
-1
-2

Relative Humidity (%)

86
86
86
87
91
92
92
91
91
91
91
91
83
76
72
74
79
83
82
83
83
67
67
62

Pressure (mb)

1029
1029
1029
1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1024
1024
1024
1025
1025
1026

Ozone (du)

289
287
287
286
283
283
284
288
288
286
290
290
291
290
290
283
282
279
277
277
277
281
283
284

Monday 29

Waxing Gibbous 82%

12:52

04:04

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

Sun - Rise: 08:45, Set: 16:37, Transit: 12:41. Moon - Rise: 12:52, Set: 04:04. Civil Dark: 17:18 - 08:05. Nautical Dark: 18:01 - 07:22. Astro Dark: 18:42 - 06:41

Total Clouds (% Sky Obscured)

79
70
36
52
71
60
41
36
48
61
59
61
63
54
39
0
8
13
19
39
73
81
83
45

Low Clouds (% Sky Obscured)

76
67
26
49
69
60
41
36
40
61
49
48
59
54
39
0
8
13
0
30
73
64
83
45

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
14
38
53
57
0

High Clouds (% Sky Obscured)

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

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
5
0
0
0
0
0
5
0
0
0
0
0
0
0
0
1
1
1
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)

11
11
9
8
8
8
8
8
7
6
6
5
6
8
9
9
8
6
5
4
3
3
4
5

Chance of Frost

Temperature (°C)

4
4
4
3
2
3
2
2
1
1
1
1
2
4
4
4
4
3
1
0
0
0
0
1

Feels Like (°C)

-2
-2
-1
-1
-2
-2
-2
-2
-2
-1
-3
-1
0
1
1
1
2
1
-0
-1
-1
0
-1
-1

Dew Point (°C)

-3
-4
-2
-1
-2
-2
-2
-2
-2
-3
-3
-3
-3
-3
-4
-4
-3
-3
-3
-4
-4
-4
-4
-4

Relative Humidity (%)

58
57
64
76
77
70
73
77
78
77
77
74
69
64
58
57
62
69
74
75
75
75
73
73

Pressure (mb)

1026
1027
1027
1027
1027
1028
1028
1028
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031

Ozone (du)

283
280
278
279
277
277
280
283
283
296
312
317
320
320
324
328
335
335
335
337
340
341
341
340

Tuesday 30

Waxing Gibbous 91%

13:20

05:36

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

Sun - Rise: 08:45, Set: 16:38, Transit: 12:42. Moon - Rise: 13:20, Set: 05:36. Civil Dark: 17:18 - 08:05. Nautical Dark: 18:02 - 07:22. Astro Dark: 18:42 - 06:41

Total Clouds (% Sky Obscured)

83
55
93
94
86
56
17
82
94
80
71
83
95
91
98
91
76
42
88
58
61
66
66
68

Low Clouds (% Sky Obscured)

66
34
61
44
70
44
0
49
25
61
46
76
80
66
71
62
54
38
48
5
16
26
37
49

Medium Clouds (% Sky Obscured)

35
26
52
51
36
6
10
38
53
34
41
42
41
41
55
38
26
5
27
18
12
6
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
2
2
2
3
1
23
43
45
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
1
0
0
0
0
0
0
0
0
1
1
5
5
6
16
17
1
0
0
0
0
0
3

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
6
6
6
6
7
7
7
7
8
8
8
8
10
11
12
12
12
10
10
11
10
10
10

Chance of Frost

Temperature (°C)

0
0
1
1
1
1
2
1
1
2
2
3
4
5
6
6
6
5
4
3
3
2
2
1

Feels Like (°C)

-2
-2
-2
-2
-2
-1
-1
-1
-2
-1
-1
1
2
1
2
2
2
1
-0
-1
-2
-3
-3
-3

Dew Point (°C)

-4
-4
-4
-4
-3
-2
-1
-1
-1
0
1
1
2
2
2
3
3
2
1
-0
-1
0
-0
-1

Relative Humidity (%)

73
73
71
73
73
77
81
86
88
89
91
88
82
78
78
78
79
78
77
79
79
88
88
89

Pressure (mb)

1031
1031
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1026
1025
1025
1025
1024
1024
1023
1023
1022
1022
1021

Ozone (du)

342
339
334
331
328
325
324
323
320
318
318
319
320
318
316
318
318
319
320
321
321
316
313
312

Wednesday 31

Waxing Gibbous 88%

14:01

07:07

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
21 Bad
22 Bad

Sun - Rise: 08:45, Set: 16:40, Transit: 12:42. Moon - Rise: 14:01, Set: 07:07. Civil Dark: 17:19 - 08:05. Nautical Dark: 18:03 - 07:22. Astro Dark: 18:43 - 06:41

Total Clouds (% Sky Obscured)

85
86
89
92
95
97
98
99
100
100
100
100
100
100
100
100
100
90
81
71
76
82
88
92

Low Clouds (% Sky Obscured)

71
83
86
90
93
91
89
87
86
86
84
79
75
71
81
90
100
89
79
68
66
65
64
67

Medium Clouds (% Sky Obscured)

0
0
0
0
0
12
25
32
38
44
50
45
43
37
47
53
60
40
20
0
12
25
48
81

High Clouds (% Sky Obscured)

28
36
44
60
61
70
43
62
93
96
100
100
100
100
87
74
60
40
20
0
6
17
23
17

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

15
7
19
3
2
10
6
8
10
10
7
15
14
31
37
53
61
60
56
50
42
30
14
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

11
12
13
14
15
16
17
18
18
19
19
20
20
21
20
20
19
18
17
16
15
15
13
13

Chance of Frost

Temperature (°C)

1
2
2
3
3
3
3
3
3
3
3
3
3
3
4
4
4
5
5
5
5
4
4
4

Feels Like (°C)

-3
-3
-3
-3
-3
-3
-4
-4
-4
-4
-4
-5
-4
-4
-3
-3
-3
-2
-2
-2
-1
-2
-2
-2

Dew Point (°C)

0
-0
-0
-0
-1
-1
-1
-2
-2
-1
-2
-3
-1
1
3
2
2
1
1
1
1
1
-0
-1

Relative Humidity (%)

91
86
83
82
77
73
73
69
69
73
72
68
74
83
94
88
86
78
76
75
78
76
75
72

Pressure (mb)

1020
1019
1018
1017
1016
1015
1014
1013
1012
1011
1010
1010
1009
1008
1007
1006
1005
1005
1005
1004
1004
1004
1004
1004

Ozone (du)

312
311
307
303
305
309
311
308
305
304
313
321
324
329
336
354
378
395
397
393
390
392
395
395

Thursday 1

Waxing Gibbous 97%

15:03

08:24

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 OK
16 OK
17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:44, Set: 16:41, Transit: 12:43. Moon - Rise: 15:03, Set: 08:24. Civil Dark: 17:20 - 08:05. Nautical Dark: 18:04 - 07:22. Astro Dark: 18:44 - 06:41

Total Clouds (% Sky Obscured)

96
100
100
100
99
91
83
76
68
57
49
57
64
69
53
31
15
23
32
43
60
77
94
96

Low Clouds (% Sky Obscured)

69
69
71
73
67
69
72
72
64
50
43
51
39
43
28
15
4
17
29
43
47
49
50
58

Medium Clouds (% Sky Obscured)

91
73
65
48
45
33
19
6
5
4
47
50
50
50
46
31
15
23
32
26
21
14
11
9

High Clouds (% Sky Obscured)

11
9
5
10
4
4
5
5
5
5
5
5
5
4
0
0
0
0
0
0
0
0
0
0

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
6
3
0

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 (%)

9
7
21
31
30
30
28
20
16
11
13
5
9
5
19
20
14
16
13
4
15
17
11
18

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)

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

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
4
4
4
3
3
3
3
4
4
4
4
4
3
3
3
2
2
2

Feels Like (°C)

-2
-2
-2
-2
-1
-2
-1
-2
-2
-1
-2
-2
-2
-1
-1
-1
-2
-1
-1
-2
-2
-3
-3
-3

Dew Point (°C)

-1
-1
-1
-1
0
-0
-1
-1
-1
-1
-1
-1
-0
0
1
0
0
0
1
0
1
1
1
2

Relative Humidity (%)

72
71
72
73
76
76
73
73
75
75
74
77
77
77
76
76
77
79
82
83
86
89
93
96

Pressure (mb)

1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1001
1001
1001
1001
1000
1000
1000

Ozone (du)

391
386
380
375
370
367
368
368
369
367
363
354
349
340
335
321
306
292
290
288
286
288
290
292

Friday 2

Waxing Gibbous 100%

16:23

09:21

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
21 Bad
22 Bad

Sun - Rise: 08:44, Set: 16:42, Transit: 12:43. Moon - Rise: 16:23, Set: 09:21. Civil Dark: 17:22 - 08:04. Nautical Dark: 18:05 - 07:21. Astro Dark: 18:45 - 06:41

Total Clouds (% Sky Obscured)

98
100
86
73
62
53
43
34
39
45
50
54
59
65
73
81
89
93
96
100
90
80
70
74

Low Clouds (% Sky Obscured)

67
77
70
67
62
52
42
34
37
44
47
51
59
65
68
73
78
78
83
84
77
72
67
69

Medium Clouds (% Sky Obscured)

26
41
31
14
2
14
25
34
39
45
50
54
59
65
73
81
87
91
96
100
90
77
60
55

High Clouds (% Sky Obscured)

0
0
0
0
5
5
10
15
25
25
35
35
25
35
35
15
5
5
5
5
0
5
5
5

ISS Passover

Visibility (miles)

3
6
9
9
9
9
9
9
9
6
3
0
0
0
0
0
0
1
3
6
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
Snow

Precipitation Probability (%)

19
17
16
14
7
13
16
15
23
21
13
17
15
10
24
28
21
38
42
37
41
40
33
45

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
0.1

Wind Speed/Direction (mph)

16
16
16
15
14
13
13
13
12
12
11
10
10
10
12
12
11
11
11
10
10
9
9
9

Chance of Frost

Temperature (°C)

2
2
2
2
2
1
1
1
1
1
1
1
1
2
2
2
2
2
1
1
1
1
1
1

Feels Like (°C)

-3
-3
-4
-5
-5
-6
-5
-5
-5
-5
-5
-4
-4
-4
-4
-3
-2
-2
-2
-2
-3
-3
-4
-4

Dew Point (°C)

1
1
-0
-0
-1
-1
-1
-1
-2
-1
-1
-1
0
1
1
1
1
1
0
-1
-1
-1
-1
-1

Relative Humidity (%)

93
89
86
86
86
86
86
86
84
86
89
89
93
94
94
94
94
96
93
89
89
89
89
89

Pressure (mb)

999
999
998
998
998
998
998
998
997
998
998
998
998
999
999
999
998
998
998
999
999
999
999
999

Ozone (du)

293
294
295
298
301
304
308
312
316
326
335
344
346
348
350
352
353
354
356
359
361
361
362
362

Saturday 3

Full Moon 99%

17:53

09:59

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

Sun - Rise: 08:44, Set: 16:43, Transit: 12:43. Moon - Rise: 17:53, Set: 09:59. Civil Dark: 17:23 - 08:04. Nautical Dark: 18:06 - 07:21. Astro Dark: 18:46 - 06:41

Total Clouds (% Sky Obscured)

76
78
74
72
70
65
56
50
50
51
44
63
80
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

72
78
74
72
70
65
56
50
45
35
25
27
28
34
34
34
34
49
66
80

Medium Clouds (% Sky Obscured)

45
45
45
55
65
65
56
50
50
51
44
63
80
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

5
5
5
5
5
10
15
25
25
35
35
55
75
80
90
95
95
95
95
95

ISS Passover

Visibility (miles)

7
6
5
4
3
2
1
1
1
1
0
0
0
0
0
1
2
3
5
7

Fog (%)

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

Precipitation Type

Snow
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None

Precipitation Probability (%)

48
45
63
71
71
77
77
73
69
67
64
61
57
53
51
47
41
33
24
13

Precipitation Amount (mm)

0.1
0
0.2
0.3
0.3
0.4
0.4
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.1
0
0
0
0

Wind Speed/Direction (mph)

9
9
9
9
10
10
10
11
11
11
12
12
13
14
15
14
14
13
13
12

Chance of Frost

Temperature (°C)

1
0
0
0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

-3
-3
-3
-4
-5
-5
-6
-6
-6
-7
-7
-8
-8
-7
-7
-8
-8
-7
-7
-7

Dew Point (°C)

-1
-1
-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-1
-2
-2
-2
-2
-3

Relative Humidity (%)

91
91
91
91
92
94
92
91
91
92
92
94
94
94
94
92
91
91
89
86

Pressure (mb)

999
998
998
998
998
998
998
997
997
998
998
998
999
999
999
1000
1000
1001
1001
1002

Ozone (du)

361
360
358
358
358
358
360
361
362
363
364
365
367
369
371
372
373
374
374
373

Forecast for 's-Hertogenbosch, Gemeente 's-Hertogenbosch, Netherlands (51.70,5.30)

Generated: 28/12/25 22:36:43. Forecast: 28/12/25 to 03/01/26. Timezone: UTC+1.00