Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 1%

08:03

14:29

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

Sun - Rise: 08:32, Set: 15:44, Transit: 12:07. Moon - Rise: 08:03, Set: 14:29. Civil Dark: 16:35 - 07:42. Nautical Dark: 17:28 - 06:49. Astro Dark: 18:17 - 05:59

Total Clouds (% Sky Obscured)

73
61
57
51
50
51
61
63
55
44
50
50
46
66
79
73
70
30
12
11
11
13
30
50

Low Clouds (% Sky Obscured)

65
61
57
51
50
51
61
63
48
40
9
8
0
0
0
0
0
0
0
2
2
3
3
25

Medium Clouds (% Sky Obscured)

0
0
0
0
2
2
3
0
0
0
25
18
15
46
52
61
36
30
4
3
0
0
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
7
1
3
12
7
31
17
31
33
19
51
50
14
1
1
1
1
8
11

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
2

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
2
0
0
0
0
0
0
1
1
0
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)

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

Chance of Frost

Temperature (°C)

-1
-1
-2
-2
-3
-3
-3
-4
-4
-4
-4
-4
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-4
-3

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-8
-9
-10
-9
-10
-9
-9
-9
-9
-8
-9
-9
-9
-9
-10
-10
-10
-10
-10
-10
-10
-9

Relative Humidity (%)

71
66
62
58
59
62
61
64
65
68
69
73
73
73
73
72
69
67
66
65
65
64
63
60

Pressure (mb)

1001
1001
1001
1001
1002
1003
1003
1004
1004
1004
1005
1005
1006
1006
1006
1007
1007
1007
1007
1007
1008
1008
1008
1008

Ozone (du)

307
305
311
309
306
304
298
303
312
309
308
307
302
302
311
317
323
332
341
339
337
334
327
323

Wednesday 19

Waning Crescent 1%

09:37

14:30

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
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:35, Set: 15:42, Transit: 12:07. Moon - Rise: 09:37, Set: 14:30. Civil Dark: 16:33 - 07:44. Nautical Dark: 17:26 - 06:51. Astro Dark: 18:16 - 06:01

Total Clouds (% Sky Obscured)

64
100
100
97
99
99
100
100
100
100
100
100
100
100
91
69
73
61
91
85
80
95
98
98

Low Clouds (% Sky Obscured)

31
50
24
17
48
89
90
82
88
90
80
93
67
78
75
53
55
42
62
69
68
71
65
77

Medium Clouds (% Sky Obscured)

41
76
70
94
93
94
100
100
100
100
100
100
100
100
55
3
29
37
76
54
28
80
92
85

High Clouds (% Sky Obscured)

12
41
54
70
90
81
20
15
20
45
36
38
56
47
27
50
28
41
62
50
56
51
56
67

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
0
0
0
0
0
0
0
0
0
7
4
8

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
0
0

Precipitation Type

None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
1
3
7
7
7
12
12
46
59
59
82
95
95
84
54
39
20
17
9
12
12
28
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.3
0.2
0.6
0.9
1.1
0.6
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-1
-1
-2
-2
-2
-2
-1
-1
-1
-1
0
0
0
0
0
0
0
0
0
-0
-0
0
1

Feels Like (°C)

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

Dew Point (°C)

-8
-7
-7
-7
-6
-6
-5
-5
-4
-4
-3
-2
-1
-0
0
0
0
0
-1
-0
-1
-1
-1
-1

Relative Humidity (%)

61
63
66
71
75
75
78
77
78
81
83
84
92
96
98
98
98
98
96
98
96
96
96
89

Pressure (mb)

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

Ozone (du)

324
326
327
323
317
316
318
318
314
304
298
298
301
303
302
300
297
297
300
303
302
299
299
300

Thursday 20

New Moon 0%

11:09

14:33

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
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:37, Set: 15:41, Transit: 12:08. Moon - Rise: 11:09, Set: 14:33. Civil Dark: 16:32 - 07:46. Nautical Dark: 17:25 - 06:53. Astro Dark: 18:15 - 06:03

Total Clouds (% Sky Obscured)

100
100
99
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
96
96

Low Clouds (% Sky Obscured)

80
88
93
98
96
97
90
91
88
93
90
88
78
76
80
80
84
83
75
83
80
78
75
72

Medium Clouds (% Sky Obscured)

100
100
94
56
48
59
62
62
87
100
97
100
100
98
100
100
99
100
100
100
94
89
84
83

High Clouds (% Sky Obscured)

84
54
35
22
24
39
100
100
100
87
93
30
20
20
23
42
38
45
38
24
21
23
30
35

ISS Passover

Visibility (miles)

7
0
1
2
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
0
0
0
0

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
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
Snow
Snow
Snow
None

Precipitation Probability (%)

82
76
41
27
24
23
41
46
60
74
82
77
63
43
31
27
21
23
19
41
45
50
56
50

Precipitation Amount (mm)

0.9
0.6
0
0
0
0
0.2
0.2
0.3
0.5
0.7
0.5
0.3
0.1
0
0
0
0
0
0
0.1
0.1
0.1
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

2
1
2
1
1
1
1
1
1
1
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

-2
-2
-1
-2
-2
-3
-3
-3
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4
-3
-4
-4
-3
-3
-3

Dew Point (°C)

0
1
1
1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
-1

Relative Humidity (%)

89
98
94
94
86
81
83
84
81
86
91
92
94
92
92
92
92
92
92
96
98
100
100
100

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1006
1006
1006
1006
1007
1007
1007

Ozone (du)

300
299
301
300
301
303
303
302
302
302
302
301
298
295
295
297
301
302
303
303
301
300
301
303

Friday 21

Waxing Crescent 1%

No Rise

14:44

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
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

Sun - Rise: 08:40, Set: 15:39, Transit: 12:08. Moon - Rise: No Rise, Set: 14:44. Civil Dark: 16:30 - 07:48. Nautical Dark: 17:23 - 06:54. Astro Dark: 18:13 - 06:04

Total Clouds (% Sky Obscured)

95
95
96
96
97
65
32
0
0
0
0
11
26
37
34
35
33
32
31
30
23
17
15
24

Low Clouds (% Sky Obscured)

70
67
70
73
76
51
25
0
0
0
0
11
26
37
34
35
33
32
31
30
23
17
15
14

Medium Clouds (% Sky Obscured)

83
83
83
81
78
54
30
0
0
0
0
8
18
25
20
25
25
25
31
30
23
17
15
24

High Clouds (% Sky Obscured)

35
3
0
0
0
8
10
0
0
0
0
0
0
4
1
0
0
0
0
1
1
11
6
2

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
1
2
2
0
0
0
0
0
0
0
0
0
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
Snow
Snow
Snow
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

49
39
31
29
34
48
46
50
41
32
27
33
36
34
47
56
62
73
69
57
43
32
25
20

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.1
0.2
0
0
0
0
0
0
0.2
0.3
0.5
0.7
0.6
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-1
-1
-1
-2
-2
-2
-2
-2
-2
-1
-2
-2
-2
-3
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4

Feels Like (°C)

-3
-3
-4
-4
-5
-5
-5
-5
-4
-4
-4
-4
-4
-5
-6
-6
-8
-8
-9
-9
-10
-10
-10
-9

Dew Point (°C)

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

Relative Humidity (%)

98
100
98
100
98
100
100
98
96
94
98
98
98
100
98
98
98
98
98
96
96
94
90
89

Pressure (mb)

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

Ozone (du)

303
302
308
316
318
317
316
314
313
314
315
315
314
315
315
313
311
311
311
312
313
313
312
314

Saturday 22

Waxing Crescent 5%

12:27

15:12

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

Sun - Rise: 08:42, Set: 15:37, Transit: 12:08. Moon - Rise: 12:27, Set: 15:12. Civil Dark: 16:28 - 07:50. Nautical Dark: 17:22 - 06:56. Astro Dark: 18:12 - 06:06

Total Clouds (% Sky Obscured)

34
45
39
22
39
24
30
26
20
19
20
25
27
27
28
35
44
54
65
75
67
59
51
54

Low Clouds (% Sky Obscured)

22
13
10
5
7
1
2
2
9
14
20
25
27
27
28
35
44
51
56
61
57
52
47
54

Medium Clouds (% Sky Obscured)

3
45
39
15
26
16
30
26
7
4
0
0
0
0
0
0
0
11
24
35
24
12
0
0

High Clouds (% Sky Obscured)

3
3
1
1
2
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
3
5
8
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
4
4
4
6
8
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 (%)

7
4
6
7
4
7
8
3
3
2
1
2
1
0
4
4
2
6
5
3
7
6
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)

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

Chance of Frost

Temperature (°C)

-4
-3
-3
-3
-3
-4
-4
-4
-4
-4
-5
-5
-4
-4
-4
-5
-5
-5
-5
-4
-3
-2
-1
1

Feels Like (°C)

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

Dew Point (°C)

-6
-5
-5
-5
-5
-5
-5
-5
-5
-5
-6
-6
-5
-5
-5
-6
-6
-6
-6
-5
-4
-3
-3
-2

Relative Humidity (%)

86
84
84
86
87
89
91
91
90
92
92
92
92
92
92
94
92
92
92
92
92
87
84
81

Pressure (mb)

1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

317
321
323
321
320
321
323
320
321
326
327
325
324
322
316
314
312
310
310
310
310
311
312
313

Sunday 23

Waxing Crescent 9%

13:12

16:15

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
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:44, Set: 15:35, Transit: 12:08. Moon - Rise: 13:12, Set: 16:15. Civil Dark: 16:27 - 07:52. Nautical Dark: 17:21 - 06:58. Astro Dark: 18:11 - 06:08

Total Clouds (% Sky Obscured)

54
52
58
66
70
79
90
98
99
100
100
100
100
100
100
100
100
94
88
85
81
89
93
95

Low Clouds (% Sky Obscured)

54
52
58
60
57
68
76
83
55
28
0
16
35
57
80
91
98
92
87
83
81
82
79
80

Medium Clouds (% Sky Obscured)

0
0
3
6
9
33
60
82
85
92
100
100
100
100
100
100
100
82
64
46
35
23
14
14

High Clouds (% Sky Obscured)

3
0
33
66
70
79
90
98
99
99
100
100
100
100
70
40
10
7
2
0
0
0
0
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
4
2
2
1
1
1
0
0
0
0
0
3
6
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

4
4
11
10
4
10
14
20
29
35
38
43
49
55
67
78
92
88
82
69
61
53
45
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.3
0.4
0.6
0.5
0.5
0.3
0.3
0.2
0.2
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
2
2
1
1
0
0
0
1
1
1
1
1
1
1
0
0
-0
-1
-1
-1
-1
-2
-2

Feels Like (°C)

-4
-4
-3
1
1
1
-1
-3
-5
-3
-3
-4
-4
-4
-4
-4
-5
-5
-5
-5
-5
-5
-6
-5

Dew Point (°C)

-1
-1
-0
-1
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
0
0
-0
-1
-2
-3
-4
-4
-4
-3

Relative Humidity (%)

83
84
85
86
84
86
86
84
84
83
84
83
88
92
98
98
98
96
91
87
83
84
86
87

Pressure (mb)

1015
1015
1014
1014
1014
1013
1013
1012
1012
1011
1010
1009
1008
1006
1005
1004
1003
1002
1001
1001
1001
1001
1001
1001

Ozone (du)

311
308
306
307
307
308
306
303
301
301
301
301
300
299
298
298
299
300
300
301
302
303
303
304

Monday 24

Waxing Crescent 16%

13:29

17:45

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

Sun - Rise: 08:47, Set: 15:33, Transit: 12:09. Moon - Rise: 13:29, Set: 17:45. Civil Dark: 16:26 - 07:54. Nautical Dark: 17:20 - 07:00. Astro Dark: 18:10 - 06:09

Total Clouds (% Sky Obscured)

97
99
97
97
95
92
89
86
88
91
90
90
90
90
90
90
90
76
59
46

Low Clouds (% Sky Obscured)

81
92
74
55
39
41
34
26
40
61
76
76
77
78
77
78
79
65
52
39

Medium Clouds (% Sky Obscured)

14
19
18
16
29
33
29
29
30
23
19
15
20
14
14
10
5
7
8
10

High Clouds (% Sky Obscured)

10
15
10
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
37
34
33
29
29
29
26
29
24
10
17
12
2
7
9
9
7
5
0

Precipitation Amount (mm)

0.1
0.1
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
3
4
3
3
3
3
3
4
4
4
4
5
5
5
5
5

Chance of Frost

Temperature (°C)

-2
-2
-2
-2
-3
-3
-4
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-6
-6
-6

Feels Like (°C)

-5
-5
-5
-6
-6
-6
-6
-6
-5
-8
-8
-7
-7
-7
-6
-7
-7
-8
-8
-8

Dew Point (°C)

-4
-4
-5
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-6
-6
-6
-6
-7
-7
-7

Relative Humidity (%)

84
83
79
82
84
87
89
92
94
92
92
92
92
92
92
92
92
90
92
92

Pressure (mb)

1001
1001
1001
1002
1002
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1009
1010
1010

Ozone (du)

303
303
302
302
301
301
300
299
298
299
299
299
301
303
304
303
302
301
302
303

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

Generated: 18/11/25 11:23:02. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+2.00