Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 25

Waxing Gibbous 95%

20:28

03:06

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

Sun - Rise: 06:03, Set: 20:47, Transit: 13:24. Moon - Rise: 20:28, Set: 03:06. Civil Dark: 21:34 - 05:16. Nautical Dark: 22:38 - 04:13. Astro Dark: 00:16 - 02:40

Total Clouds (% Sky Obscured)

43
36
45
44
27
20
22
15
15
14
25
24
51
68
82
84
73
60
75
77
72
69
78
62

Low Clouds (% Sky Obscured)

43
36
28
27
18
10
8
5
5
5
15
20
20
48
57
59
60
45
54
65
59
41
53
44

Medium Clouds (% Sky Obscured)

0
0
0
4
0
0
0
0
0
2
2
5
21
25
39
35
25
17
17
2
0
17
31
3

High Clouds (% Sky Obscured)

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

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 (%)

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 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)

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

Chance of Frost

Temperature (°C)

18
18
18
18
16
14
13
12
12
13
12
10
10
10
10
11
14
15
17
18
19
20
20
21

Feels Like (°C)

17
18
18
17
14
12
12
11
10
11
10
10
9
9
10
11
13
14
16
17
19
19
19
19

Dew Point (°C)

4
5
6
8
8
7
7
7
7
8
8
7
6
6
7
8
10
11
12
13
13
12
9
9

Relative Humidity (%)

40
40
43
53
60
64
65
69
70
75
77
77
74
76
78
79
79
78
75
71
67
59
49
48

Pressure (mb)

1020
1020
1020
1020
1020
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

322
320
319
317
316
316
315
315
315
314
314
313
313
313
312
311
311
310
309
306
305
303
302
301

Wednesday 26

Waxing Gibbous 98%

20:30

04:40

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

Sun - Rise: 06:06, Set: 20:44, Transit: 13:23. Moon - Rise: 20:30, Set: 04:40. Civil Dark: 21:31 - 05:19. Nautical Dark: 22:34 - 04:17. Astro Dark: 00:07 - 02:48

Total Clouds (% Sky Obscured)

57
42
27
43
56
48
50
65
67
65
50
72
67
78
69
55
16
38
48
68
83
77
76
73

Low Clouds (% Sky Obscured)

42
32
12
21
30
38
40
40
39
35
40
59
67
78
67
36
6
17
15
38
23
41
52
49

Medium Clouds (% Sky Obscured)

31
19
20
24
19
0
0
0
0
0
0
20
0
0
0
0
6
8
8
26
31
40
34
22

High Clouds (% Sky Obscured)

6
3
3
3
3
2
2
3
3
3
3
2
3
5
16
19
4
15
30
37
53
37
18
35

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 (%)

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 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
7
7
4
2
1
1
2
2
2
2
2
3
3
3
3
2
2
2
2
2
3
4
4

Chance of Frost

Temperature (°C)

21
21
20
19
17
15
14
13
13
12
11
11
10
9
9
9
11
16
18
19
20
21
21
21

Feels Like (°C)

19
20
20
20
18
15
14
13
12
11
10
10
10
8
8
9
12
17
18
20
20
20
21
20

Dew Point (°C)

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

Relative Humidity (%)

46
45
49
55
64
64
63
64
64
65
64
66
67
69
73
77
72
64
56
50
46
42
40
38

Pressure (mb)

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

Ozone (du)

302
302
302
302
302
303
304
305
306
307
307
307
308
309
310
310
309
309
309
310
310
311
311
311

Thursday 27

Waxing Gibbous 100%

20:30

06:11

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
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

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)

60
52
51
53
54
37
35
52
57
81
88
93
98
97
96
86
70
80
90
100
88
73
62
65

Low Clouds (% Sky Obscured)

39
35
30
30
25
25
30
30
30
60
76
73
79
77
72
53
45
47
54
57
56
51
46
26

Medium Clouds (% Sky Obscured)

14
13
11
13
14
2
0
2
0
0
0
15
31
34
30
24
22
28
38
45
31
24
14
19

High Clouds (% Sky Obscured)

20
22
28
37
26
37
35
41
30
20
63
70
90
83
78
73
65
61
62
5
5
1
0
0

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
1
0
1

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
6
6
5
4
4
3
2
2
2
2
2
2
1
1
1
2
1
2
4
4
5
5
6

Chance of Frost

Temperature (°C)

21
20
20
19
17
14
13
12
12
11
11
11
11
11
11
11
13
16
17
18
19
19
20
20

Feels Like (°C)

19
19
18
18
16
13
12
12
11
10
10
10
10
10
10
11
13
15
16
17
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

43
54
57
60
62
63
64
65
65
65
66
67
68
68
69
70
69
67
62
58
55
54
53
55

Pressure (mb)

1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024

Ozone (du)

311
312
312
313
313
313
312
312
311
311
312
315
315
314
314
314
314
315
315
314
313
313
311
308

Friday 28

Full Moon 99%

20:29

07:42

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

71
74
79
83
87
91
95
99
98
97
96
97
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

14
5
18
31
47
51
38
43
45
40
27
52
39
42
21
10
0
1
0
0
12
34
37
34

Medium Clouds (% Sky Obscured)

25
31
32
36
41
38
34
29
33
56
63
76
67
85
79
95
99
98
85
95
92
91
80
87

High Clouds (% Sky Obscured)

4
6
10
61
61
70
84
97
96
94
93
95
97
80
100
100
100
100
100
100
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
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
1
2
3
2
0
2
0
1
0
0
0
0
0
0
0
0
2
4
2
3
3
3
23

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
54
58
66
74
78
79
84
83
82
83
84
83
87
86
83
78
74
72
62
62
59
58
54

Pressure (mb)

1024
1024
1023
1023
1022
1022
1021
1021
1021
1021
1020
1019
1018
1018
1017
1016
1015
1014
1014
1013
1013
1012
1012
1011

Ozone (du)

306
305
302
298
295
294
293
291
290
288
289
289
288
288
288
287
285
286
286
287
286
288
288
289

Saturday 29

Waning Gibbous 96%

20:29

09:14

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

100
100
100
100
100
100
100
100
93
85
78
80
81
81
87
93
100
100
100
100
100
100
100
95

Low Clouds (% Sky Obscured)

64
42
88
94
98
97
94
91
89
85
78
80
81
81
80
78
76
77
76
75
82
82
82
76

Medium Clouds (% Sky Obscured)

96
70
81
83
79
75
61
53
46
40
35
24
11
2
2
3
3
33
60
81
71
59
50
45

High Clouds (% Sky Obscured)

100
100
100
100
98
100
100
100
83
63
40
35
22
13
37
62
83
58
40
23
34
43
50
55

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

45
65
74
82
88
77
59
45
38
30
11
20
22
23
32
37
40
41
44
47
51
54
63
79

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
12
11
11
10
8
9
8
8
8
8
8
8
8
6
5
4
7
10
14
14
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
10
9
10
10
11
14
14
14
14
14
14
14
14
14
14
15
15
15
15
15
15
14
14

Relative Humidity (%)

54
59
59
62
63
72
89
92
96
95
96
93
95
95
95
95
96
98
95
92
90
85
81
76

Pressure (mb)

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

Ozone (du)

289
290
290
291
291
292
293
296
299
302
304
307
312
317
322
322
321
320
319
318
317
315
314
312

Sunday 30

Waning Gibbous 91%

20:28

10:48

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

91
86
91
95
100
100
100
96
96
95
94
93
91
91
91
92
92
94
97
99
100
100
100
100

Low Clouds (% Sky Obscured)

70
66
62
57
54
63
67
65
66
69
76
79
82
84
81
78
70
74
77
87
85
84
82
60

Medium Clouds (% Sky Obscured)

39
34
53
67
72
62
53
43
48
60
74
64
55
46
54
62
69
57
46
36
27
27
27
15

High Clouds (% Sky Obscured)

44
28
22
19
2
15
29
37
42
46
41
28
17
7
6
6
8
31
58
84
87
94
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

87
86
62
39
22
42
59
76
78
74
68
64
62
64
65
61
53
50
52
54
71
81
90
86

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
76
77
82
87
93
95
95
95
95
93
92
93
93
93
93
92
90
87
82
78
73
69
65

Pressure (mb)

1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1002
1002
1002
1002
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002

Ozone (du)

312
312
311
312
312
313
311
309
307
307
307
307
306
305
304
305
306
307
308
309
310
308
306
304

Monday 31

Waning Gibbous 84%

20:28

12:27

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: 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)

100
100
99
98
98
98
99
99
100
100
100
95
89
84
85
85
88

Low Clouds (% Sky Obscured)

41
27
28
31
34
53
70
89
92
96
99
95
89
84
85
85
88

Medium Clouds (% Sky Obscured)

14
12
35
58
80
86
93
98
97
96
95
74
52
25
34
33
26

High Clouds (% Sky Obscured)

100
100
80
62
44
51
59
64
76
87
100
70
40
10
4
3
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
6
4
3
2
1
4
6
9
7
5

Fog (%)

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

Precipitation Probability (%)

72
38
32
22
21
66
95
95
95
95
95
95
95
94
77
62
45

Precipitation Amount (mm)

0.4
0
0
0
0
0.2
0.6
1
1.3
1.4
1.5
1.5
1.3
0.5
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
17
16
16
15
15
15
15
15
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
70
71
75
82
87
90
92
96
96
96
98
96
98
98
96
96

Pressure (mb)

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

Ozone (du)

303
302
301
302
302
302
303
304
305
307
309
310
313
316
319
318
316

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

Generated: 25/08/26 16:21:05. Forecast: 25/08/26 to 31/08/26. Timezone: UTC+3.00