Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 8

Waning Crescent 10%

No Rise

19:35

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:34, Set: 20:05, Transit: 13:20. Moon - Rise: No Rise, Set: 19:35. Civil Dark: 20:48 - 05:51. Nautical Dark: 21:43 - 04:56. Astro Dark: 22:49 - 03:50

Total Clouds (% Sky Obscured)

98
100
99
99
99
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100

Low Clouds (% Sky Obscured)

63
71
74
71
67
63
73
77
77
80
83
87
80
85
82
80
100
89
88
89
90
78
70
69

Medium Clouds (% Sky Obscured)

69
51
74
80
86
82
96
100
100
100
100
100
100
97
95
93
98
97
96
93
72
90
93
89

High Clouds (% Sky Obscured)

98
91
88
99
90
86
85
71
100
100
100
100
100
100
99
100
100
100
100
100
89
77
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
9
8
5
8
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
None
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
21
9
19
36
31
29
63
65
81
84
87
76
46
51
35
40
39
46
48
51
43
13
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
14
15
15
15
15
16
15
15
16
16
16
16
16
15
15
15
15
15
15
15
15
15

Feels Like (°C)

12
13
12
13
12
12
13
13
13
13
14
13
14
14
13
13
13
13
13
13
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
90
90
89
87
86
85
83
86
90
92
90
85
79
77
80
83
86
89
92
92
95

Pressure (mb)

1012
1012
1011
1011
1010
1010
1009
1009
1008
1008
1007
1007
1007
1006
1006
1005
1005
1005
1004
1004
1003
1003
1003
1003

Ozone (du)

292
291
291
291
293
295
294
294
291
289
289
289
290
289
288
287
285
287
288
289
289
290
291
291

Wednesday 9

Waning Crescent 4%

03:36

19:36

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:37, Set: 20:02, Transit: 13:19. Moon - Rise: 03:36, Set: 19:36. Civil Dark: 20:45 - 05:53. Nautical Dark: 21:39 - 04:59. Astro Dark: 22:44 - 03:55

Total Clouds (% Sky Obscured)

100
100
100
100
63
93
92
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

78
75
78
80
54
53
66
68
70
66
73
77
85
77
81
81
81
77
55
62
69
51
61
53

Medium Clouds (% Sky Obscured)

92
79
66
67
63
90
67
68
100
97
100
100
100
98
90
91
100
66
73
94
87
93
95
100

High Clouds (% Sky Obscured)

100
52
41
55
26
45
42
57
53
99
100
100
100
100
96
62
100
100
100
100
100
99
100
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
9
9
9
2
1
0
0
9
9
9
9
8
9

Fog (%)

0
0
0
2
7
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
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

34
40
49
51
95
95
51
42
46
52
63
61
57
72
95
78
68
47
22
30
43
25
24
35

Precipitation Amount (mm)

0
0
0
0
1.5
2.3
0
0
0
0
0
0
0
0.3
1
0.4
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
15
15
15
16
16
16
16
16
16
16
16
15
15
14
14
14
14
14

Feels Like (°C)

14
14
14
14
15
17
15
15
14
14
15
15
15
15
15
15
15
15
14
14
14
14
13
13

Dew Point (°C)

14
14
14
14
14
15
14
14
14
14
14
14
14
15
15
15
15
15
14
13
14
13
13
13

Relative Humidity (%)

95
95
95
92
95
96
93
93
90
87
85
90
90
92
95
96
98
98
96
95
96
95
96
95

Pressure (mb)

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

Ozone (du)

292
294
295
296
296
295
294
292
290
289
289
289
290
290
291
292
293
295
298
302
304
307
314
327

Thursday 10

Waning Crescent 1%

05:20

19:36

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:39, Set: 19:59, Transit: 13:19. Moon - Rise: 05:20, Set: 19:36. Civil Dark: 20:42 - 05:56. Nautical Dark: 21:36 - 05:02. Astro Dark: 22:39 - 03:59

Total Clouds (% Sky Obscured)

54
57
44
67
86
83
85
84
84
89
96
87
82
77
77
82
94
100
100
90
77
100
77
100

Low Clouds (% Sky Obscured)

51
46
44
45
64
72
66
70
73
50
60
71
66
72
75
38
27
65
51
41
23
32
34
38

Medium Clouds (% Sky Obscured)

2
51
2
28
48
52
66
62
60
70
79
65
55
55
55
18
40
40
40
41
50
100
46
84

High Clouds (% Sky Obscured)

45
5
0
0
0
0
64
65
75
80
80
80
80
70
70
70
59
4
0
16
36
100
46
99

ISS Passover

Visibility (miles)

9
9
9
9
9
8
3
3
2
8
9
4
9
2
4
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
7
11
22
45
62
87
95
95
90
86
73
81
90
61
32
15
5
6
7
8
7
14
17

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
1.7
0.8
0.4
0.4
0
0.3
0.6
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
4
3
3
4
5
7
7
5
3
6
10
12
11
11
12
11
11
12
12
10
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
11
10
10
11
12
13
14
13
12
14
14
13
12
11
10
9
7
7
7
7
7

Relative Humidity (%)

95
96
96
96
95
93
90
90
92
93
87
83
90
92
92
89
83
86
86
81
82
85
87
90

Pressure (mb)

1000
1000
1001
1000
1000
1000
1000
999
1000
1000
1000
1000
1001
1001
1002
1003
1004
1004
1005
1006
1006
1006
1007
1007

Ozone (du)

326
325
325
326
329
333
338
341
342
345
347
345
343
341
341
343
344
346
348
349
346
346
345
346

Friday 11

New Moon 0%

06:58

19:36

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

Sun - Rise: 06:41, Set: 19:56, Transit: 13:18. Moon - Rise: 06:58, Set: 19:36. Civil Dark: 20:39 - 05:58. Nautical Dark: 21:32 - 05:05. Astro Dark: 22:34 - 04:02

Total Clouds (% Sky Obscured)

100
77
72
81
80
80
85
66
47
29
27
23
23
32
33
31
27
24
17
22
31
45
51
61

Low Clouds (% Sky Obscured)

41
55
66
73
68
64
56
45
30
24
21
19
17
18
18
22
14
7
0
1
1
1
2
22

Medium Clouds (% Sky Obscured)

99
53
47
45
32
20
6
4
2
0
0
0
2
24
20
2
20
24
17
22
31
2
51
59

High Clouds (% Sky Obscured)

30
30
30
30
30
40
40
30
15
0
5
3
9
2
17
24
18
24
17
22
31
45
45
45

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 (%)

23
46
41
31
31
27
18
9
3
0
0
1
0
0
0
0
0
1
2
2
3
1
4
4

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)

9
9
8
9
9
9
10
10
11
11
11
11
11
11
10
9
9
8
6
5
5
5
4
4

Chance of Frost

Temperature (°C)

10
10
10
11
11
11
11
11
12
14
15
16
16
17
17
16
16
14
12
11
10
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
85
85
87
87
84
76
69
59
53
48
46
45
47
53
61
73
83
90
91
91
95
93

Pressure (mb)

1007
1007
1007
1007
1008
1008
1009
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1013

Ozone (du)

347
346
342
335
330
330
329
328
327
326
327
325
323
322
321
320
319
318
318
318
319
320
323
323

Saturday 12

Waxing Crescent 2%

08:33

19:35

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:44, Set: 19:53, Transit: 13:18. Moon - Rise: 08:33, Set: 19:35. Civil Dark: 20:35 - 06:01. Nautical Dark: 21:29 - 05:08. Astro Dark: 22:30 - 04:06

Total Clouds (% Sky Obscured)

63
73
60
78
77
94
93
96
98
100
100
100
100
98
95
92
92
94
98
89
79
69
75
81

Low Clouds (% Sky Obscured)

25
40
20
27
19
43
40
56
67
50
46
35
39
35
31
38
40
36
35
35
36
37
22
19

Medium Clouds (% Sky Obscured)

26
29
43
54
51
51
53
52
45
40
87
93
99
79
60
41
37
34
34
23
11
0
14
23

High Clouds (% Sky Obscured)

45
21
39
50
36
34
2
26
83
100
100
100
100
90
79
68
71
74
72
45
28
15
23
27

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
5
5
6
8
8
7
18
18
28
35
33
28
50
54
53
46
39
30
22
14
1
3
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)

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

Chance of Frost

Temperature (°C)

8
8
9
9
9
10
12
13
14
15
16
16
16
16
16
15
15
14
13
12
12
12
12
12

Feels Like (°C)

7
7
7
9
9
10
11
12
13
13
14
14
13
14
13
13
13
14
14
15
10
12
13
13

Dew Point (°C)

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

Relative Humidity (%)

85
82
81
88
93
95
89
86
82
80
77
78
75
68
72
73
75
80
86
92
93
93
95
93

Pressure (mb)

1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1010
1010
1010
1009
1009
1009
1009
1009
1010
1010
1010
1010
1011
1011

Ozone (du)

324
330
332
329
326
324
324
322
321
321
321
321
320
320
321
322
323
322
321
320
320
319
319
318

Sunday 13

Waxing Crescent 7%

10:06

19:35

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
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:46, Set: 19:50, Transit: 13:18. Moon - Rise: 10:06, Set: 19:35. Civil Dark: 20:32 - 06:03. Nautical Dark: 21:25 - 05:10. Astro Dark: 22:26 - 04:10

Total Clouds (% Sky Obscured)

87
91
96
100
100
100
100
100
100
100
100
99
99
99
99
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

17
26
34
42
34
26
20
29
34
36
39
42
50
59
69
76
83
89
89
92
93
100
99
99

Medium Clouds (% Sky Obscured)

35
47
59
72
85
90
92
94
97
100
98
96
94
88
82
76
81
85
91
94
97
100
97
94

High Clouds (% Sky Obscured)

32
55
81
100
98
98
97
84
72
65
68
63
63
54
44
31
48
70
90
71
47
25
53
77

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

Precipitation Probability (%)

1
2
2
1
3
4
5
12
14
13
17
15
11
12
12
12
29
43
56
70
73
69
62
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.4
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
11
10
10
9
8
7
13
12
12
12
12
12
14
13
13
13
13
13
11
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

93
92
90
88
90
87
84
83
80
76
73
68
62
57
61
66
70
75
80
84
86
89
92
93

Pressure (mb)

1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1008
1008
1008
1008
1007
1007

Ozone (du)

318
317
316
316
315
314
313
312
311
311
311
310
310
310
310
310
310
309
309
308
305
302
300
299

Monday 14

Waxing Crescent 13%

11:40

19:35

Sun - Rise: 06:48, Set: 19:46, Transit: 13:17. Moon - Rise: 11:40, Set: 19:35. Civil Dark: 20:29 - 06:06. Nautical Dark: 21:21 - 05:13. Astro Dark: 22:21 - 04:14

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 08/09/26 02:31:57. Forecast: 08/09/26 to 14/09/26. Timezone: UTC+3.00