Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 21

Waxing Crescent 2%

10:00

16:34

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

Sun - Rise: 08:12, Set: 16:38, Transit: 12:25. Moon - Rise: 10:00, Set: 16:34. Civil Dark: 17:17 - 07:34. Nautical Dark: 17:59 - 06:51. Astro Dark: 18:40 - 06:11

Total Clouds (% Sky Obscured)

96
87
77
66
44
30
22
8
25
23
12
1
1
1
6
9
8
3
6
32
69
88
82
74

Low Clouds (% Sky Obscured)

58
55
43
49
44
30
22
8
25
23
12
0
0
0
0
8
7
0
2
15
27
26
24
19

Medium Clouds (% Sky Obscured)

48
13
6
3
2
0
0
2
2
3
3
1
1
1
5
3
5
3
5
7
12
16
22
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
2
2
11
30
64
40
36

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 (%)

25
0
0
0
0
0
1
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
1
0
0
0
0
1
0
0
0
2
1
2
2
3
3
5
6
9
11
15
6
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)

10
9
8
7
5
4
3
2
2
3
4
5
5
6
7
8
8
9
9
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
88
88
88
86
86
83
80
75
72
70
67
72
75
77
78
80
78
78
80
78
78
80
78

Pressure (mb)

1017
1018
1019
1020
1021
1022
1023
1024
1024
1025
1024
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

319
322
323
322
328
333
323
315
311
308
309
307
303
299
295
294
295
294
292
289
286
281
278
273

Saturday 22

Waxing Crescent 5%

11:02

17:18

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:14, Set: 16:37, Transit: 12:26. Moon - Rise: 11:02, Set: 17:18. Civil Dark: 17:16 - 07:35. Nautical Dark: 17:58 - 06:53. Astro Dark: 18:39 - 06:12

Total Clouds (% Sky Obscured)

56
66
100
78
84
94
86
92
100
100
100
97
98
94
84
85
95
100
95
100
100
100
100
100

Low Clouds (% Sky Obscured)

29
25
0
0
0
0
0
0
1
1
3
0
20
15
10
9
10
10
10
41
69
74
77
77

Medium Clouds (% Sky Obscured)

20
31
27
68
60
86
85
92
100
100
95
97
98
91
84
85
95
99
95
85
96
93
100
100

High Clouds (% Sky Obscured)

12
20
100
41
62
78
65
81
100
100
100
50
17
0
0
0
7
100
52
100
96
95
100
96

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 (%)

2
2
2
4
2
3
2
2
1
1
0
0
0
0
0
0
1
5
6
6
8
10
23
17

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-5
-5
-5
-5
-5
-3
-3
-3
-3
-3
-4
-4
-4
-4
-4
-4
-5
-5
-4
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

80
80
81
80
78
78
75
71
68
62
56
53
53
56
58
62
66
68
69
69
69
69
74
84

Pressure (mb)

1025
1025
1025
1025
1024
1024
1024
1024
1024
1023
1022
1021
1020
1020
1019
1019
1018
1017
1017
1016
1016
1015
1014
1014

Ozone (du)

271
269
269
270
273
274
268
260
257
259
261
264
268
272
274
275
273
272
272
271
276
279
278
275

Sunday 23

Waxing Crescent 10%

11:51

18:16

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:16, Set: 16:36, Transit: 12:26. Moon - Rise: 11:51, Set: 18:16. Civil Dark: 17:15 - 07:37. Nautical Dark: 17:57 - 06:54. Astro Dark: 18:38 - 06:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
96
100
100
100
100
100
100
98
77
76
92
96
82
82
85

Low Clouds (% Sky Obscured)

82
88
86
83
72
85
94
87
88
90
100
100
94
100
100
100
98
77
60
63
80
63
69
77

Medium Clouds (% Sky Obscured)

100
72
84
79
100
100
100
100
86
88
98
100
100
90
61
50
20
40
35
32
28
37
38
48

High Clouds (% Sky Obscured)

98
96
100
100
100
100
87
6
3
0
0
8
85
85
0
0
0
0
1
46
62
13
1
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
4
4
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
Snow
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

27
31
38
38
36
49
61
61
47
45
48
77
95
95
37
17
27
32
35
19
21
13
17
24

Precipitation Amount (mm)

0
0
0.1
0
0
0.1
0.3
0.3
0.1
0.1
0.2
0.3
1.1
1.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
16
16
16
17
16
17
17
17
17
18
18
18
17
16
15
13
12
13
13
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
91
88
83
84
86
89
91
92
94
91
89
88
91
93
93
94
91
94
94
94
94
94
94

Pressure (mb)

1013
1012
1011
1010
1009
1008
1008
1006
1006
1004
1003
1001
1000
998
997
996
996
995
995
994
994
993
992
992

Ozone (du)

272
270
268
267
265
265
267
269
269
269
269
270
270
272
274
276
277
277
279
281
283
285
288
288

Monday 24

Waxing Crescent 16%

12:28

19:26

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:17, Set: 16:35, Transit: 12:26. Moon - Rise: 12:28, Set: 19:26. Civil Dark: 17:14 - 07:38. Nautical Dark: 17:57 - 06:56. Astro Dark: 18:37 - 06:15

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
95
92
94
97
100
98
96
95
91
88
86
87
88

Low Clouds (% Sky Obscured)

82
90
94
95
94
93
93
89
85
79
70
62
54
60
69
78
71
65
56
51
47
45
47
52

Medium Clouds (% Sky Obscured)

100
100
73
100
100
90
50
80
100
98
97
94
91
94
96
100
97
93
90
87
83
82
83
82

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
25
22
4
1
10
5
31
61
92
75
58
41
27
18
5
5
10

ISS Passover

Visibility (miles)

9
2
0
6
8
9
9
9
9
9
7
9
9
3
4
8
7
3
6
7
6
6
4
4

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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None
None
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

28
37
40
48
65
67
72
60
50
57
42
48
74
94
78
62
88
95
76
75
84
95
95
87

Precipitation Amount (mm)

0
0
0
0
0.2
0.3
0.6
0.3
0
0.3
0
0
0.5
0.9
0.5
0.2
0.9
1
0.4
0.4
0.5
0.8
0.9
0.6

Wind Speed/Direction (mph)

11
11
11
11
11
11
10
10
10
10
11
7
7
7
7
8
9
8
7
7
7
6
7
8

Chance of Frost

Temperature (°C)

5
5
5
5
5
5
5
6
6
7
8
7
7
7
7
6
6
6
6
5
5
5
5
5

Feels Like (°C)

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

Dew Point (°C)

4
5
5
5
4
5
4
4
5
6
6
6
5
5
6
5
5
5
4
4
4
4
4
4

Relative Humidity (%)

94
96
98
94
93
94
93
90
88
90
87
88
85
88
93
90
91
93
91
90
91
91
93
93

Pressure (mb)

992
991
991
990
990
990
990
990
990
990
990
990
990
991
991
992
993
993
994
994
995
996
996
997

Ozone (du)

289
291
292
294
296
296
296
298
298
299
298
297
297
300
302
302
302
301
300
304
305
307
310
312

Tuesday 25

Waxing Crescent 25%

12:54

20:42

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 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:19, Set: 16:34, Transit: 12:26. Moon - Rise: 12:54, Set: 20:42. Civil Dark: 17:13 - 07:40. Nautical Dark: 17:56 - 06:57. Astro Dark: 18:37 - 06:16

Total Clouds (% Sky Obscured)

88
85
80
78
78
79
77
77
74
75
71
52
47
35
38
25
41
38
46
50
47
44
46
51

Low Clouds (% Sky Obscured)

57
56
58
57
58
56
49
53
55
56
54
47
47
30
15
14
30
31
32
33
47
44
46
51

Medium Clouds (% Sky Obscured)

84
77
72
70
65
63
57
55
54
45
19
10
1
9
38
25
41
38
46
50
36
23
14
7

High Clouds (% Sky Obscured)

10
5
5
0
0
0
0
0
0
0
0
0
0
0
0
0
7
12
22
17
11
3
2
1

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
8
7
6
5
6
8
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
None
None
None
None
None
None

Precipitation Probability (%)

56
27
32
31
37
31
10
21
31
10
18
19
7
16
35
45
57
49
30
30
28
24
20
18

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
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
5
5
5
5
5
5
5
6
6
6
6
6
6
5
4
4
4
4
4
4
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
88
86
86
88
86
85
85
83
83
85
84
82
80
85
86
93
91
89
88
83
79
76
77

Pressure (mb)

998
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1008
1009
1010
1011
1012
1013
1014
1014
1015
1015
1016
1016

Ozone (du)

313
313
313
313
316
320
322
313
307
304
303
303
305
307
308
311
314
312
310
307
311
314
317
315

Wednesday 26

Waxing Crescent 34%

13:12

22:02

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

Sun - Rise: 08:21, Set: 16:33, Transit: 12:27. Moon - Rise: 13:12, Set: 22:02. Civil Dark: 17:12 - 07:41. Nautical Dark: 17:55 - 06:58. Astro Dark: 18:36 - 06:17

Total Clouds (% Sky Obscured)

62
62
57
54
49
46
43
35
29
24
23
41
45
44
48
42
40
34
28
36
35
38
43
52

Low Clouds (% Sky Obscured)

62
62
57
54
49
46
43
35
29
24
23
33
33
30
23
17
19
21
21
36
35
38
43
42

Medium Clouds (% Sky Obscured)

0
0
0
0
1
3
4
28
29
24
23
21
1
18
33
42
40
34
28
36
31
32
39
48

High Clouds (% Sky Obscured)

0
1
2
2
5
6
7
23
29
24
23
29
15
8
6
2
1
1
1
4
7
10
14
9

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 (%)

14
12
10
4
8
11
7
13
16
9
19
22
18
18
18
7
12
12
4
12
17
24
25
22

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

Chance of Frost

Temperature (°C)

4
4
3
3
3
3
3
4
5
6
7
6
6
6
5
5
4
4
3
3
4
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
77
77
77
79
77
79
80
79
78
76
75
75
75
76
78
77
77
77
77
80
85
89
85

Pressure (mb)

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

Ozone (du)

313
312
309
305
302
301
300
299
299
298
298
299
300
301
299
298
296
296
296
297
297
298
298
296

Thursday 27

Waxing Crescent 44%

13:27

23:22

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
23 Bad
00 Bad

Sun - Rise: 08:22, Set: 16:32, Transit: 12:27. Moon - Rise: 13:27, Set: 23:22. Civil Dark: 17:12 - 07:43. Nautical Dark: 17:55 - 07:00. Astro Dark: 18:36 - 06:19

Total Clouds (% Sky Obscured)

67
76
86
94
97
98
100
100
100
100
100
100
100
100
100
100
100
100
100
97
95
92

Low Clouds (% Sky Obscured)

43
50
58
67
75
81
88
82
80
82
88
94
100
100
100
100
100
100
100
96
93
89

Medium Clouds (% Sky Obscured)

56
56
52
37
36
34
40
60
80
100
95
88
79
84
90
95
87
78
70
65
58
50

High Clouds (% Sky Obscured)

4
4
0
0
0
0
15
15
20
20
20
20
15
10
10
10
5
5
13
21
23
21

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

14
12
13
14
14
14
24
37
47
55
66
70
58
60
64
65
60
52
35
26
23
15

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
7
7
8
8
9
9
10
11
12
12
12
11
11
11
10
10
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
80
82
83
86
86
85
85
83
82
81
84
88
93
93
94
93
93
91
90
90
90

Pressure (mb)

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

Ozone (du)

294
292
290
289
287
288
288
289
287
285
284
282
280
279
277
276
274
274
274
274
273
273

Forecast for Katwoude, Gemeente Waterland, Netherlands (52.47,5.07)

Generated: 21/11/25 03:18:04. Forecast: 21/11/25 to 27/11/25. Timezone: UTC+1.00