Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

New Moon 0%

No Rise

17:56

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 08:14, Set: 18:23, Transit: 13:18. Moon - Rise: No Rise, Set: 17:56. Civil Dark: 18:59 - 07:39. Nautical Dark: 19:39 - 06:58. Astro Dark: 20:19 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
86
79
89
83
97
99
99
97
92
72
64
98
95
98
85
84
95
95
80
92
94

Low Clouds (% Sky Obscured)

80
76
86
71
64
74
64
67
65
56
57
50
61
59
68
66
75
76
73
75
66
73
83
65

Medium Clouds (% Sky Obscured)

32
32
51
78
31
28
24
42
99
95
94
33
8
7
73
13
30
62
14
2
13
3
15
45

High Clouds (% Sky Obscured)

96
91
100
38
0
0
0
10
74
87
75
35
9
5
57
60
60
0
2
62
72
15
13
20

ISS Passover

Visibility (miles)

9
9
9
9
8
6
8
8
7
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
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

45
69
67
75
84
74
47
55
49
19
7
10
6
8
11
17
11
8
11
14
28
14
10
9

Precipitation Amount (mm)

0
0.5
0.3
0.4
0.6
0.4
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
14
14
14
14
14
14
14
13
13
12
12
12
12
12
12
12
12
12
12
11
11
11

Feels Like (°C)

8
9
9
9
9
10
10
10
10
10
10
9
9
9
9
8
9
8
9
8
9
8
8
8

Dew Point (°C)

12
12
12
12
12
12
12
12
12
11
12
11
12
11
11
11
11
11
11
11
11
11
10
10

Relative Humidity (%)

90
90
87
89
87
84
84
84
86
87
90
93
95
93
92
93
95
95
92
93
95
96
93
92

Pressure (mb)

988
989
989
990
991
991
992
992
993
993
993
994
994
994
994
994
994
994
994
994
995
995
995
996

Ozone (du)

281
285
286
285
285
284
284
277
275
271
268
270
271
272
275
278
278
281
279
278
276
276
275
275

Wednesday 22

Waxing Crescent 1%

09:29

18:08

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

Sun - Rise: 08:16, Set: 18:21, Transit: 13:18. Moon - Rise: 09:29, Set: 18:08. Civil Dark: 18:57 - 07:40. Nautical Dark: 19:37 - 07:00. Astro Dark: 20:17 - 06:20

Total Clouds (% Sky Obscured)

94
83
85
93
79
95
98
100
100
100
17
14
71
66
97
100
100
100
100
100
100
100
98
85

Low Clouds (% Sky Obscured)

65
44
44
39
34
49
48
41
28
32
0
6
25
26
24
30
46
59
80
84
94
100
92
84

Medium Clouds (% Sky Obscured)

87
17
63
83
72
68
40
74
100
100
17
7
2
0
0
45
50
45
79
73
100
100
93
45

High Clouds (% Sky Obscured)

60
70
70
45
50
65
94
100
100
100
17
0
66
66
93
100
100
100
100
100
100
100
36
10

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
1
7

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Very Light Rain

Precipitation Probability (%)

10
14
8
11
3
1
2
4
4
4
2
2
2
1
1
2
6
65
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.1
1.7
2.4
3
2.8
0.3

Wind Speed/Direction (mph)

11
11
11
12
11
11
9
8
6
4
4
4
4
5
6
6
7
8
10
13
15
18
19
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
89
82
74
70
68
70
75
80
83
84
87
90
91
93
96
96
96
93
91
93
95
95

Pressure (mb)

997
997
998
998
998
998
999
999
999
999
999
999
999
998
998
997
996
994
992
989
987
984
982
980

Ozone (du)

273
273
271
273
274
280
285
284
281
280
282
281
283
280
275
275
273
271
271
273
274
279
278
284

Thursday 23

Waxing Crescent 4%

10:45

18:24

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 08:18, Set: 18:19, Transit: 13:17. Moon - Rise: 10:45, Set: 18:24. Civil Dark: 18:55 - 07:42. Nautical Dark: 19:35 - 07:02. Astro Dark: 20:15 - 06:21

Total Clouds (% Sky Obscured)

100
96
93
83
93
99
97
97
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

100
65
65
71
78
75
77
85
90
99
90
96
77
79
73
83
73
69
66
65
70
72
69
58

Medium Clouds (% Sky Obscured)

87
7
2
15
58
78
67
62
71
72
63
52
48
57
84
99
100
90
79
66
54
75
76
84

High Clouds (% Sky Obscured)

10
10
10
2
5
7
0
0
80
75
88
100
100
67
67
20
100
100
96
85
98
96
94
96

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
9
9
9
9
9
9
4
2
2
2
5
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

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

Precipitation Probability (%)

72
29
10
22
25
23
39
46
95
95
95
95
82
90
95
95
95
95
58
35
21
19
30
42

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
1.2
5.6
1.5
0.8
0.3
0.4
1.1
1.6
1.8
0.8
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

17
14
18
19
23
26
25
29
31
34
36
36
36
36
35
33
32
28
25
23
22
21
20
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
10
10
10
9
6
5
3
1
-0
1
-1
-0
-1
-1
-1
-1
1
2
2
2
2
2
3

Dew Point (°C)

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

Relative Humidity (%)

95
93
80
76
78
78
75
80
81
85
84
81
83
85
88
90
90
90
84
81
80
74
72
73

Pressure (mb)

978
977
977
976
976
976
975
975
974
972
973
975
977
980
982
984
985
987
988
989
990
990
990
991

Ozone (du)

288
291
292
296
297
299
306
313
320
326
333
333
332
336
336
334
333
327
321
325
328
332
334
332

Friday 24

Waxing Crescent 8%

12:00

18:47

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 08:20, Set: 18:17, Transit: 13:17. Moon - Rise: 12:00, Set: 18:47. Civil Dark: 18:53 - 07:44. Nautical Dark: 19:33 - 07:03. Astro Dark: 20:13 - 06:23

Total Clouds (% Sky Obscured)

96
96
87
87
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
98
97
97
97

Low Clouds (% Sky Obscured)

70
58
67
76
91
86
82
77
71
68
64
67
69
73
73
71
71
73
73
75
73
71
71
68

Medium Clouds (% Sky Obscured)

40
49
44
43
92
93
66
96
97
97
79
64
80
77
92
70
64
55
97
95
89
92
94
94

High Clouds (% Sky Obscured)

74
92
75
75
76
81
86
100
99
99
100
89
78
67
45
22
0
5
5
5
2
5
15
17

ISS Passover

Visibility (miles)

9
6
6
9
8
7
9
4
8
4
3
7
8
9
5
9
9
9
9
9
6
6
5
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

47
54
62
71
78
86
89
85
82
84
67
75
80
84
84
77
74
75
83
85
86
82
93
95

Precipitation Amount (mm)

0
0
0
0.2
0.2
0.4
0.5
0.4
0.4
0.3
0
0.3
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.6
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
9
9
10
10
10
9
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
11
11

Feels Like (°C)

2
3
3
4
5
4
4
4
4
4
4
5
5
4
5
5
4
6
6
5
7
7
7
6

Dew Point (°C)

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

Relative Humidity (%)

82
82
74
72
74
82
88
85
85
88
90
90
88
87
90
90
90
90
88
91
95
95
90
91

Pressure (mb)

991
991
991
991
991
992
991
991
991
990
990
990
990
990
990
990
990
990
990
990
990
990
990
991

Ozone (du)

332
335
338
338
330
328
319
310
307
309
311
314
325
330
331
331
331
331
332
333
333
331
325
324

Saturday 25

Waxing Crescent 15%

13:10

19:20

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:22, Set: 18:15, Transit: 13:17. Moon - Rise: 13:10, Set: 19:20. Civil Dark: 18:51 - 06:46. Nautical Dark: 19:31 - 06:05. Astro Dark: 20:11 - 05:25

Total Clouds (% Sky Obscured)

97
98
96
91
93
96
98
100
100
81
100
75
80
84
77
69
55
84
100
97
92
88
84
83

Low Clouds (% Sky Obscured)

65
62
66
61
64
63
65
63
53
53
58
57
65
72
61
53
47
75
90
87
85
83
69
59

Medium Clouds (% Sky Obscured)

94
69
74
58
56
65
61
43
31
28
61
57
41
11
14
12
11
36
54
65
60
58
68
75

High Clouds (% Sky Obscured)

15
19
28
33
47
66
83
100
100
81
95
46
55
64
63
59
55
69
79
74
75
75
75
60

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

88
56
50
59
58
95
83
72
72
72
52
51
53
56
56
54
51
54
53
60
59
56
50
41

Precipitation Amount (mm)

0.5
0
0
0
0
1.1
0.5
0.3
0.3
0
0
0
0
0
0.2
0
0
0
0
0.3
0.3
0.2
0
0

Wind Speed/Direction (mph)

18
19
20
20
22
23
24
22
21
20
19
20
20
20
19
17
16
14
14
13
12
12
11
13

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
10
10
11
11
10
10
10
10
10
10
10
9
9
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
88
84
85
83
83
90
91
87
87
88
88
87
84
82
82
84
85
84
85
84
82
81
81

Pressure (mb)

991
992
992
992
993
993
992
992
992
993
993
994
997
998
999
999
1000
1000
1000
1000
1001
1001
1001
1001

Ozone (du)

329
327
323
317
315
315
317
321
322
323
324
324
325
327
328
324
321
309
301
293
293
292
291
292

Sunday 26

Waxing Crescent 22%

13:09

19:08

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:24, Set: 17:13, Transit: 12:17. Moon - Rise: 13:09, Set: 19:08. Civil Dark: 17:49 - 06:47. Nautical Dark: 18:29 - 06:07. Astro Dark: 19:09 - 05:27

Total Clouds (% Sky Obscured)

82
85
88
91
89
86
84
83
82
82
87
94
100
100
100
100
96
93
93
98
99
100
100
99

Low Clouds (% Sky Obscured)

50
61
71
83
82
80
75
73
73
73
70
67
64
57
48
37
46
55
60
75
87
97
98
98

Medium Clouds (% Sky Obscured)

81
80
82
82
78
75
72
64
53
42
46
56
68
78
88
98
88
81
68
74
84
89
89
88

High Clouds (% Sky Obscured)

50
22
12
7
2
0
0
0
0
0
32
63
95
65
35
5
19
33
48
67
83
100
67
33

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

34
49
60
68
68
69
72
68
65
62
61
57
51
55
56
54
54
51
50
57
62
69
78
76

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
18
19
19
19
18
17
16
14
13
12
10
9
9
8
7
6
6
7
9
9
9
9
9

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
10
9
9
8
8
7
7
7
7
8
8
8
8
8
9

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
7
8
8
8
7
7
7
7
7
7
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

82
84
82
81
80
83
85
88
87
85
84
87
90
93
94
93
93
90
90
87
87
85
85
82

Pressure (mb)

1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1003
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003

Ozone (du)

292
292
296
300
304
304
304
305
303
302
300
301
301
301
301
300
299
297
294
291
292
292
293
295

Monday 27

Waxing Crescent 31%

13:54

20:11

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: 07:25, Set: 17:11, Transit: 12:17. Moon - Rise: 13:54, Set: 20:11. Civil Dark: 17:47 - 06:49. Nautical Dark: 18:27 - 06:08. Astro Dark: 19:07 - 05:28

Total Clouds (% Sky Obscured)

99
93
88
84
82
79
75
75
73
72
75
77
81
80
80
83

Low Clouds (% Sky Obscured)

98
92
87
81
75
69
62
62
62
61
62
63
63
56
48
41

Medium Clouds (% Sky Obscured)

89
70
51
36
34
33
31
27
22
17
26
39
52
62
73
83

High Clouds (% Sky Obscured)

0
0
3
3
2
1
0
0
0
0
2
7
14
24
27
35

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

62
51
44
38
32
25
18
23
27
30
40
47
52
48
43
40

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
9
10
10
10
10
9
9
8
8
7
7
7
7
8
8

Feels Like (°C)

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

Dew Point (°C)

6
6
5
5
5
5
5
5
5
5
5
6
6
7
7
7

Relative Humidity (%)

80
78
74
73
72
73
73
73
78
82
88
91
93
94
94
94

Pressure (mb)

1003
1004
1004
1005
1006
1006
1007
1007
1008
1008
1009
1009
1009
1009
1009
1008

Ozone (du)

297
300
301
303
305
302
300
298
296
295
294
295
296
297
297
298

Forecast for Groningen, Gemeente Groningen, Netherlands (53.22,6.57)

Generated: 21/10/25 09:17:21. Forecast: 21/10/25 to 27/10/25. Timezone: UTC+2.00