Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Gibbous 100%

20:30

06:11

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:08, Set: 20:41, Transit: 13:23. Moon - Rise: 20:30, Set: 06:11. Civil Dark: 21:28 - 05:22. Nautical Dark: 22:30 - 04:20. Astro Dark: 23:59 - 02:55

Total Clouds (% Sky Obscured)

86
90
94
95
95
89
77
88
79
89
100
100
100
92
83
67
82
90
97
89
94
80
52
68

Low Clouds (% Sky Obscured)

33
28
30
32
22
10
8
8
5
44
65
64
62
64
45
13
20
20
48
67
65
57
38
25

Medium Clouds (% Sky Obscured)

49
51
42
48
48
41
35
39
17
0
12
28
34
38
36
32
43
48
41
30
27
20
11
24

High Clouds (% Sky Obscured)

42
72
80
63
75
78
68
77
75
78
100
100
98
9
3
3
5
49
91
76
80
19
7
51

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
1
10
31
17
5
1
1
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
0
1
0
0
0
4
1
0
1
0
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)

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

Chance of Frost

Temperature (°C)

21
20
19
17
15
13
13
12
11
10
9
9
9
9
10
12
15
17
18
19
19
20
20
20

Feels Like (°C)

20
20
18
16
14
12
12
11
10
9
9
9
9
8
9
12
15
16
17
18
19
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

54
59
62
66
70
71
72
77
80
87
87
85
85
85
84
77
70
64
64
63
59
53
54
51

Pressure (mb)

1027
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025

Ozone (du)

311
311
310
310
310
310
311
314
317
319
318
318
318
318
316
312
312
311
311
310
307
305
306
304

Friday 28

Full Moon 99%

20:29

07:42

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:10, Set: 20:38, Transit: 13:23. Moon - Rise: 20:29, Set: 07:42. Civil Dark: 21:24 - 05:25. Nautical Dark: 22:26 - 04:24. Astro Dark: 23:52 - 03:01

Total Clouds (% Sky Obscured)

65
91
86
87
100
100
87
100
97
90
100
87
100
98
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

12
5
33
9
42
53
50
40
16
17
40
2
7
18
7
0
4
0
0
0
2
12
2
7

Medium Clouds (% Sky Obscured)

24
49
39
44
31
20
27
27
59
57
61
71
95
92
92
80
89
83
86
96
78
89
82
64

High Clouds (% Sky Obscured)

47
55
55
55
100
100
71
100
79
77
100
69
95
66
100
62
98
100
100
100
100
100
100
99

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 (%)

1
2
3
5
5
3
3
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
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)

6
6
5
4
4
5
5
5
5
5
6
7
6
7
8
9
10
11
12
12
12
12
11
10

Chance of Frost

Temperature (°C)

20
19
18
16
15
15
15
14
14
15
14
14
14
15
15
16
16
17
17
18
19
20
20
20

Feels Like (°C)

18
17
16
16
14
14
13
14
13
14
13
13
13
13
13
14
14
14
14
15
16
17
18
18

Dew Point (°C)

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

Relative Humidity (%)

50
58
67
75
82
80
76
79
83
84
79
74
82
80
79
75
73
70
70
63
58
59
60
60

Pressure (mb)

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

Ozone (du)

301
301
300
298
297
295
294
292
291
290
289
290
289
290
290
291
291
290
288
288
288
288
288
290

Saturday 29

Waning Gibbous 96%

20:29

09:14

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:13, Set: 20:35, Transit: 13:22. Moon - Rise: 20:29, Set: 09:14. Civil Dark: 21:21 - 05:27. Nautical Dark: 22:22 - 04:27. Astro Dark: 23:45 - 03:07

Total Clouds (% Sky Obscured)

97
100
100
99
100
100
100
98
100
100
100
100
100
100
100
100
100
73
68
72
81
75
69
100

Low Clouds (% Sky Obscured)

5
2
33
38
30
47
33
41
29
56
73
92
100
98
100
86
70
52
60
52
60
56
46
46

Medium Clouds (% Sky Obscured)

94
100
99
83
84
70
88
94
91
91
100
100
77
99
72
47
45
44
31
35
29
27
23
21

High Clouds (% Sky Obscured)

61
93
97
96
100
100
100
79
100
100
99
100
100
100
100
100
100
0
0
30
30
35
46
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
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
Light Rain
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
4
4
25
34
41
39
35
15
36
91
50
27
17
56
82
77
68
81

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.9
0
0
0
0.5
0.8
0.6
0.4
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
19
17
17
16
16
16
16
16
15
15
15
15
15
15
15
16
17
19
19
19
19
18

Feels Like (°C)

18
18
17
16
15
15
15
15
15
15
15
14
14
14
14
15
15
16
18
19
19
19
18
18

Dew Point (°C)

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

Relative Humidity (%)

60
61
65
68
69
71
73
75
79
86
89
92
93
95
93
93
89
79
70
63
61
61
56
54

Pressure (mb)

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

Ozone (du)

291
291
293
294
295
296
297
298
299
302
304
307
310
315
318
319
319
318
319
318
315
313
310
308

Sunday 30

Waning Gibbous 91%

20:28

10:48

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:15, Set: 20:32, Transit: 13:22. Moon - Rise: 20:28, Set: 10:48. Civil Dark: 21:18 - 05:30. Nautical Dark: 22:18 - 04:31. Astro Dark: 23:38 - 03:13

Total Clouds (% Sky Obscured)

100
94
87
82
86
93
83
86
98
93
98
94
98
97
95
90
91
91
90
90
90
90
92
88

Low Clouds (% Sky Obscured)

49
49
52
56
73
84
83
86
82
74
72
67
64
78
86
76
88
87
84
76
70
63
71
76

Medium Clouds (% Sky Obscured)

17
10
6
0
12
27
39
46
89
74
91
74
70
71
68
46
59
30
33
23
12
4
18
29

High Clouds (% Sky Obscured)

100
88
73
70
65
70
3
0
0
0
15
32
77
65
17
0
1
2
53
62
67
35
42
42

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

81
68
48
26
17
6
6
19
20
13
25
35
51
45
30
24
33
28
33
39
29
23
27
27

Precipitation Amount (mm)

0.6
0.3
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
17
16
15
15
15
15
15
15
15
15
15
15
16
16
17
17
17
18
18
19
20
19

Feels Like (°C)

16
16
16
15
15
15
15
16
16
15
16
15
16
15
15
16
16
16
17
17
17
18
18
18

Dew Point (°C)

10
12
13
13
13
14
15
14
14
15
15
15
15
15
15
15
15
16
16
17
16
16
16
15

Relative Humidity (%)

60
68
78
82
89
96
98
96
98
98
98
96
98
98
98
95
90
95
93
93
86
82
78
78

Pressure (mb)

1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1007
1008
1007
1008
1007
1007
1007
1007

Ozone (du)

308
307
307
307
307
308
308
307
306
309
311
310
307
304
302
303
301
302
300
300
300
299
299
299

Monday 31

Waning Gibbous 84%

20:28

12:27

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:18, Set: 20:29, Transit: 13:22. Moon - Rise: 20:28, Set: 12:27. Civil Dark: 21:14 - 05:33. Nautical Dark: 22:14 - 04:34. Astro Dark: 23:32 - 03:18

Total Clouds (% Sky Obscured)

99
97
99
100
100
100
100
95
90
75
68
86
86
87
88
84
90
92
94
97
99
100
100
100

Low Clouds (% Sky Obscured)

89
74
87
85
87
90
92
91
90
62
48
53
56
58
55
43
38
36
33
45
49
53
55
56

Medium Clouds (% Sky Obscured)

38
69
46
50
50
55
55
37
18
0
0
0
2
12
23
35
34
33
27
29
27
23
18
22

High Clouds (% Sky Obscured)

83
81
49
55
37
18
0
4
3
3
2
50
55
50
45
29
61
68
76
84
94
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
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

34
28
23
11
25
35
36
46
52
56
49
38
21
20
18
25
45
56
63
62
62
67
66
69

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
17
17
16
16
16
16
16
16
15
15
15
15
15
16
17
17
18
18
18
18
18
18

Feels Like (°C)

18
17
17
15
15
16
15
16
15
15
16
16
14
14
15
16
17
16
16
16
16
16
16
18

Dew Point (°C)

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

Relative Humidity (%)

76
76
78
78
81
85
82
83
82
87
96
98
100
98
100
93
83
78
73
68
63
61
57
60

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004

Ozone (du)

300
300
300
301
302
304
304
304
304
305
305
305
305
307
309
310
310
310
311
311
312
313
313
314

Tuesday 1

Waning Gibbous 75%

20:29

14:13

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:20, Set: 20:26, Transit: 13:22. Moon - Rise: 20:29, Set: 14:13. Civil Dark: 21:11 - 05:35. Nautical Dark: 22:10 - 04:37. Astro Dark: 23:26 - 03:23

Total Clouds (% Sky Obscured)

100
81
64
47
50
54
58
55
57
56
67
81
90
90
88
86
89
92
95
87
79
71
66
62

Low Clouds (% Sky Obscured)

57
56
54
47
48
44
43
35
35
37
39
41
43
47
49
54
62
74
86
82
78
71
63
55

Medium Clouds (% Sky Obscured)

23
25
26
28
24
24
24
23
22
18
17
17
20
29
38
48
50
56
68
49
30
11
8
4

High Clouds (% Sky Obscured)

100
70
41
16
14
11
8
8
6
3
22
38
52
54
57
60
63
71
79
53
27
1
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

64
57
48
32
30
24
8
21
19
8
17
18
10
26
31
35
41
46
54
59
68
68
62
49

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
16
15
14
14
14
13
13
13
13
13
13
13
14
15
16
16
16
16
17
17
18
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
64
72
80
90
92
95
96
98
98
98
98
98
98
92
84
79
82
86
87
83
78
73
68

Pressure (mb)

1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1004
1005
1005
1006
1006
1006
1006
1006

Ozone (du)

316
317
317
318
319
318
318
318
316
315
314
314
314
314
314
314
315
316
317
318
320
321
322
320

Wednesday 2

Waning Gibbous 64%

20:32

16:03

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 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:22, Set: 20:23, Transit: 13:21. Moon - Rise: 20:32, Set: 16:03. Civil Dark: 21:08 - 05:38. Nautical Dark: 22:06 - 04:40. Astro Dark: 23:20 - 03:28

Total Clouds (% Sky Obscured)

58
71
84
97
96
95
94
91
89
88
88
90
91
68
39
13
40
66
92
83
74
67

Low Clouds (% Sky Obscured)

48
45
45
42
43
37
31
42
56
69
72
77
79
60
39
13
30
37
42
45
49
55

Medium Clouds (% Sky Obscured)

0
11
23
34
32
26
20
24
29
34
47
63
79
55
36
13
38
61
84
63
41
16

High Clouds (% Sky Obscured)

0
28
58
87
82
80
79
65
47
26
18
14
15
12
6
6
12
20
30
30
25
30

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

24
23
14
3
7
7
4
14
20
24
47
60
67
65
52
40
46
50
55
58
55
49

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
60
68
76
86
89
92
95
92
90
86
89
90
93
90
86
84
79
75
72
72
70

Pressure (mb)

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

Ozone (du)

318
316
315
313
312
311
309
308
310
312
314
318
321
325
329
332
336
338
341
343
344
346

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

Generated: 27/08/26 17:11:15. Forecast: 27/08/26 to 02/09/26. Timezone: UTC+3.00