Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 42%

22:04

18:53

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:54, Set: 19:43, Transit: 13:17. Moon - Rise: 22:04, Set: 18:53. Civil Dark: 20:25 - 06:11. Nautical Dark: 21:17 - 05:20. Astro Dark: 22:16 - 04:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
96
95
86
100
100
100
100
100
99
95
87
94
77
88
98
99
100
100

Low Clouds (% Sky Obscured)

50
76
88
88
94
97
88
87
72
63
63
69
63
35
18
33
34
48
34
46
90
98
87
89

Medium Clouds (% Sky Obscured)

100
100
100
100
99
93
69
81
72
70
24
2
18
53
64
48
39
38
73
83
57
48
47
83

High Clouds (% Sky Obscured)

100
100
100
100
95
100
28
15
1
80
80
81
88
100
90
20
20
20
53
56
18
70
100
82

ISS Passover

Visibility (miles)

9
5
3
3
3
6
9
9
9
9
9
7
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

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

Precipitation Probability (%)

92
95
95
95
95
74
29
38
53
38
49
22
15
7
7
5
3
12
14
14
28
32
29
52

Precipitation Amount (mm)

0.9
0.8
1.9
1.9
1.8
0.3
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
13
12
12
12
12
13
13
13
13
13
13
14
13
13
12
12
13
12
13
13
13
13

Feels Like (°C)

12
11
10
9
9
9
10
11
11
11
12
12
12
12
12
11
12
11
11
12
12
11
11
10

Dew Point (°C)

11
11
11
11
10
11
11
12
13
13
13
13
13
13
12
12
12
12
12
12
12
12
12
12

Relative Humidity (%)

73
80
90
93
92
95
93
93
96
95
95
96
95
93
95
95
96
96
93
95
96
92
93
93

Pressure (mb)

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

Ozone (du)

263
265
265
266
268
270
271
271
271
270
270
268
265
262
258
256
257
259
261
260
259
258
258
259

Tuesday 16

Waning Crescent 30%

23:51

19:08

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:56, Set: 19:40, Transit: 13:17. Moon - Rise: 23:51, Set: 19:08. Civil Dark: 20:22 - 06:14. Nautical Dark: 21:14 - 05:22. Astro Dark: 22:12 - 04:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
95
91
69
58
60
68
81
85
89
96
100
98
98
100
91
100
100
100
100

Low Clouds (% Sky Obscured)

85
76
78
72
72
71
72
58
58
58
68
59
56
58
57
56
65
58
70
71
82
93
88
81

Medium Clouds (% Sky Obscured)

56
78
24
35
38
58
29
23
23
32
34
32
85
10
19
100
97
72
96
63
88
95
88
50

High Clouds (% Sky Obscured)

100
100
100
100
100
59
1
0
58
60
68
81
85
67
88
100
57
75
100
46
100
92
100
100

ISS Passover

Visibility (miles)

5
8
8
9
9
9
5
6
6
8
9
8
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
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
None
None
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

50
46
30
44
67
74
65
76
95
75
72
82
57
40
15
22
25
23
21
28
83
95
95
95

Precipitation Amount (mm)

0
0
0
0
0.5
0.6
0.3
0.5
0.9
0.4
0.4
0.5
0.2
0
0
0
0
0
0
0
0.6
1.3
2.1
1.1

Wind Speed/Direction (mph)

9
10
10
10
10
10
11
10
10
9
8
8
8
7
7
7
7
7
8
8
10
11
13
12

Chance of Frost

Temperature (°C)

13
13
13
14
14
15
15
15
16
16
15
15
14
13
13
13
13
13
13
13
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

12
12
13
13
13
13
13
13
13
12
12
12
11
11
11
11
11
11
11
11
11
12
12
11

Relative Humidity (%)

95
96
96
95
95
90
86
86
82
79
79
80
80
84
84
87
87
90
92
89
89
89
89
89

Pressure (mb)

1004
1004
1003
1003
1003
1003
1003
1002
1002
1002
1002
1001
1001
1001
1001
1001
1000
1000
1000
999
998
997
996
996

Ozone (du)

260
261
263
264
266
268
269
272
276
279
280
280
279
280
282
282
281
278
276
280
284
284
282
281

Wednesday 17

Waning Crescent 21%

01:38

19:12

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:58, Set: 19:37, Transit: 13:16. Moon - Rise: 01:38, Set: 19:12. Civil Dark: 20:19 - 06:16. Nautical Dark: 21:10 - 05:25. Astro Dark: 22:08 - 04:28

Total Clouds (% Sky Obscured)

100
100
89
86
94
72
78
68
58
57
47
43
80
94
100
78
71
67
96
90
86
81
77
69

Low Clouds (% Sky Obscured)

78
72
76
76
82
66
67
67
58
55
45
42
52
54
61
69
71
67
57
76
71
67
63
60

Medium Clouds (% Sky Obscured)

44
74
76
25
34
2
28
0
0
2
2
3
38
40
72
1
1
1
30
54
46
40
32
23

High Clouds (% Sky Obscured)

80
100
18
2
2
0
0
0
0
2
1
4
20
64
81
33
9
6
75
36
24
11
3
2

ISS Passover

Visibility (miles)

7
5
4
9
9
9
5
6
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

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

Precipitation Probability (%)

95
89
93
74
68
61
60
57
48
37
32
22
24
19
14
21
20
23
28
29
24
27
18
29

Precipitation Amount (mm)

0.5
0.4
0.7
0.3
0.3
0.3
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
11
10
10
11
11
11
11
11
11
10
9
7
6
5
4
4
4
4
4
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
13
13
13
13
13
13
12
12
12
11
11
11
11
11
11
11
10
10
10
10

Relative Humidity (%)

89
89
90
90
89
87
87
85
85
83
83
84
89
93
95
96
96
93
93
95
96
96
95
95

Pressure (mb)

996
996
997
997
998
999
999
1000
1000
1000
1001
1001
1001
1002
1002
1002
1002
1003
1003
1003
1003
1003
1003
1003

Ozone (du)

286
287
283
282
283
281
281
281
281
281
281
281
283
286
288
284
282
281
280
278
276
274
276
279

Thursday 18

Waning Crescent 12%

03:19

19:13

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: N/A, Set: 19:33, Transit: 13:16. Moon - Rise: 03:19, Set: 19:13. Civil Dark: 20:15 - 06:19. Nautical Dark: 21:07 - 05:28. Astro Dark: 22:04 - 04:31

Total Clouds (% Sky Obscured)

62
55
70
85
100
100
100
100
100
100
100
99
98
94
98
98
97
98
99
100
98
96
93
76

Low Clouds (% Sky Obscured)

57
55
56
57
58
59
61
62
65
68
68
70
71
73
67
61
61
67
69
77
83
70
75
67

Medium Clouds (% Sky Obscured)

12
0
19
39
58
74
83
95
97
92
86
84
82
72
87
81
74
78
84
90
84
84
49
26

High Clouds (% Sky Obscured)

0
3
17
41
64
54
73
60
73
82
93
70
40
1
30
55
74
82
89
90
60
27
8
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

27
15
27
30
31
40
48
54
59
66
73
79
82
80
70
59
35
29
32
24
25
33
34
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.3
0.4
0.5
0.6
0.7
0.6
0.4
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
87
79
71
67
60
56
54
54
55
61
70
83
91
93
93
95
96
96
93
92
98
98

Pressure (mb)

1003
1004
1004
1004
1004
1004
1005
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1004

Ozone (du)

283
278
277
278
281
281
280
279
280
281
279
280
279
279
277
276
275
275
277
279
279
277
274
273

Friday 19

Waning Crescent 6%

04:53

19:12

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 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:01, Set: 19:30, Transit: 13:16. Moon - Rise: 04:53, Set: 19:12. Civil Dark: 20:12 - 06:21. Nautical Dark: 21:03 - 05:30. Astro Dark: 22:00 - 04:35

Total Clouds (% Sky Obscured)

70
79
62
70
71
69
57
49
54
54
55
57
59
64
29
14
5
37
76
90
92
93
90
74

Low Clouds (% Sky Obscured)

55
44
51
53
50
51
51
49
53
54
55
48
39
30
29
14
5
37
58
74
69
60
60
38

Medium Clouds (% Sky Obscured)

19
12
9
6
14
40
6
3
1
2
6
34
26
48
29
14
5
37
59
47
52
54
60
57

High Clouds (% Sky Obscured)

2
5
1
5
10
10
9
0
0
0
1
5
5
5
5
5
5
10
10
15
19
20
21
48

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
3
6
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 (%)

19
3
5
6
3
15
3
5
11
9
4
13
10
22
25
21
14
8
11
14
35
40
40
29

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
11
13
13
14
14
15
15
14
15
14
12
11
11
12
11
10
10
10
10
10
9
8

Dew Point (°C)

11
11
11
11
11
11
10
9
8
10
9
9
10
12
13
12
12
11
11
10
10
9
8
8

Relative Humidity (%)

96
98
92
89
82
76
68
60
58
66
66
70
83
93
98
96
93
93
92
89
87
86
83
80

Pressure (mb)

1004
1005
1005
1006
1006
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1010
1010
1010
1009
1009
1008
1008
1007
1007

Ozone (du)

272
270
269
266
265
265
265
262
260
258
256
255
254
253
253
253
254
255
256
256
257
262
267
272

Saturday 20

Waning Crescent 2%

06:22

19:11

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 OK
01 OK
02 OK
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:03, Set: 19:27, Transit: 13:15. Moon - Rise: 06:22, Set: 19:11. Civil Dark: 20:09 - 06:24. Nautical Dark: 21:00 - 05:33. Astro Dark: 21:56 - 04:38

Total Clouds (% Sky Obscured)

69
84
88
95
96
94
85
67
58
56
58
61
69
79
68
56
43
39
35
31
49
67
86
89

Low Clouds (% Sky Obscured)

18
2
5
4
17
27
29
26
26
30
30
39
43
46
51
56
43
37
29
11
9
11
14
35

Medium Clouds (% Sky Obscured)

63
70
74
83
87
88
85
67
58
56
58
49
37
26
9
6
6
7
8
9
12
12
12
12

High Clouds (% Sky Obscured)

69
84
88
95
96
67
33
0
11
21
33
34
32
29
42
54
43
39
27
10
18
26
34
27

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 (%)

18
7
11
24
19
20
21
26
37
42
36
24
14
11
13
13
9
7
5
1
1
1
0
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
77
72
69
66
65
61
60
61
62
62
62
62
62
64
65
66
66
66
68
69
70
72

Pressure (mb)

1007
1008
1008
1008
1008
1007
1007
1007
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006

Ozone (du)

274
277
279
277
276
274
273
273
272
275
278
281
282
284
285
286
287
288
290
291
293
294
294
295

Sunday 21

New Moon 0%

No Rise

19:09

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: 07:05, Set: 19:24, Transit: 13:15. Moon - Rise: No Rise, Set: 19:09. Civil Dark: 20:06 - 06:26. Nautical Dark: 20:56 - 05:36. Astro Dark: 21:52 - 04:41

Total Clouds (% Sky Obscured)

92
94
80
70
68
72
76
81
81
81
86
86
90
90
90
95
100
100
100
100

Low Clouds (% Sky Obscured)

56
74
54
41
40
48
56
62
64
74
76
73
58
39
39
38
38
33
32
31

Medium Clouds (% Sky Obscured)

12
13
9
5
5
0
0
0
0
5
10
15
35
60
44
27
3
17
31
46

High Clouds (% Sky Obscured)

21
18
9
5
4
32
64
81
81
81
86
86
90
90
90
95
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

2
1
15
25
34
39
40
40
34
28
22
48
64
78
78
77
70
56
40
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
67
66
60
56
52
49
47
44
47
49
52
54
56
58
59
61
62
62
63

Pressure (mb)

1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008

Ozone (du)

297
298
299
302
304
307
312
317
322
326
329
333
335
337
339
339
339
340
335
330

Forecast for Vols, Helsinki, Finland (60.17,24.39)

Generated: 15/09/25 07:28:38. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+3.00