Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 71%

11:30

02:42

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 OK
06 OK
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

Sun - Rise: 09:42, Set: 14:56, Transit: 12:19. Moon - Rise: 11:30, Set: 02:42. Civil Dark: 16:01 - 08:37. Nautical Dark: 17:03 - 07:35. Astro Dark: 17:58 - 06:40

Total Clouds (% Sky Obscured)

99
100
100
100
91
90
75
37
25
25
99
100
99
100
99
100
100
100
100
100
91
90
91
100

Low Clouds (% Sky Obscured)

99
100
99
97
83
81
73
37
25
25
89
94
91
100
94
96
95
98
72
62
70
79
89
93

Medium Clouds (% Sky Obscured)

46
82
100
87
55
44
6
0
0
5
39
48
96
89
85
78
100
100
84
98
83
67
55
100

High Clouds (% Sky Obscured)

0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
0
0
0
0
8
9
9
9
9
9
8
9
9
9
9
0
0
0
0
0
0
0
0

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

0
0
79
77
50
10
3
7
13
4
3
7
23
40
60
62
64
60
52
61
69
57
47
40

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
6
7
9
12
12
12
11
12
12
12
12
12
11
12
12
13
14
15
15
16
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-3
-2
-1
-0
-3
-6
-8
-9
-8
-7
-7
-7
-8
-7
-7
-6
-6
-6
-7
-7
-7
-8
-8

Relative Humidity (%)

92
96
96
98
98
80
66
58
59
67
76
78
79
73
79
81
85
87
89
87
89
89
85
84

Pressure (mb)

999
998
997
996
995
994
994
994
994
993
993
993
992
992
991
991
990
991
991
992
993
993
994
994

Ozone (du)

350
326
331
331
338
337
340
344
346
350
354
363
372
376
378
376
377
376
376
371
366
368
366
362

Monday 29

Waxing Gibbous 82%

11:25

04:36

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 09:42, Set: 14:57, Transit: 12:19. Moon - Rise: 11:25, Set: 04:36. Civil Dark: 16:02 - 08:37. Nautical Dark: 17:04 - 07:35. Astro Dark: 17:59 - 06:39

Total Clouds (% Sky Obscured)

100
99
94
99
100
100
100
100
100
100
100
100
99
99
100
96
65
61
60
56
55
52
54
58

Low Clouds (% Sky Obscured)

95
91
93
82
86
84
85
85
85
86
85
84
82
84
86
83
63
58
57
56
55
52
54
51

Medium Clouds (% Sky Obscured)

100
96
52
98
100
100
100
100
86
77
76
80
69
58
67
72
64
61
57
42
15
11
6
9

High Clouds (% Sky Obscured)

36
85
75
65
65
65
65
75
23
4
3
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
8
9
9
3
3
0
1
4
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

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

Precipitation Type

Snow
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 (%)

54
42
23
8
17
21
28
28
30
32
33
34
25
20
18
22
20
17
10
3
1
0
0
0

Precipitation Amount (mm)

0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-13
-13
-13
-13
-13
-13
-12
-12
-12
-12
-12
-12
-12
-12
-12
-13
-12
-12
-12
-12
-13
-13
-13
-13

Dew Point (°C)

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

Relative Humidity (%)

76
69
74
77
80
79
84
82
80
79
80
79
77
76
76
74
71
68
66
66
64
64
65
65

Pressure (mb)

995
995
996
997
998
998
999
1000
1000
1001
1002
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

358
353
353
355
354
355
356
355
357
359
362
365
365
367
370
375
377
380
381
381
382
381
381
381

Tuesday 30

Waxing Gibbous 78%

11:19

06:43

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
17 Bad
18 OK
19 OK
20 OK

Sun - Rise: 09:41, Set: 14:59, Transit: 12:20. Moon - Rise: 11:19, Set: 06:43. Civil Dark: 16:03 - 08:36. Nautical Dark: 17:05 - 07:35. Astro Dark: 18:00 - 06:39

Total Clouds (% Sky Obscured)

58
80
81
86
91
91
91
99
99
97
97
98
98
99
100
97
81
74
66
58
49
40
34
36

Low Clouds (% Sky Obscured)

52
69
67
70
71
72
73
85
87
85
85
86
82
85
81
80
68
46
23
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
63
66
22
62
80
68
87
96
94
94
61
59
87
95
64
28
42
53
58
49
40
34
36

High Clouds (% Sky Obscured)

0
0
0
0
2
19
44
35
55
55
17
15
36
50
45
18
20
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
6
9
5
3
4
2
1
0
0
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
1
2
1
3
11
12
16
22
25
26
22
16
16
12
6
5
2
1
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)

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

Chance of Frost

Temperature (°C)

-8
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-10
-10
-10
-10
-11

Feels Like (°C)

-13
-13
-15
-15
-15
-15
-15
-15
-15
-15
-15
-15
-15
-15
-15
-14
-14
-14
-13
-14
-14
-14
-14
-14

Dew Point (°C)

-13
-13
-13
-13
-13
-13
-13
-13
-12
-12
-12
-12
-11
-11
-13
-13
-14
-14
-14
-15
-15
-16
-16
-16

Relative Humidity (%)

68
69
71
71
72
74
74
75
77
78
78
82
85
82
68
68
67
67
65
65
64
62
62
63

Pressure (mb)

1005
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

380
379
381
381
381
379
375
373
373
371
366
359
355
359
361
356
354
354
352
349
347
345
346
345

Wednesday 31

Waxing Gibbous 90%

11:10

09:04

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 OK
10 OK
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 09:40, Set: 15:00, Transit: 12:20. Moon - Rise: 11:10, Set: 09:04. Civil Dark: 16:05 - 08:36. Nautical Dark: 17:06 - 07:34. Astro Dark: 18:01 - 06:39

Total Clouds (% Sky Obscured)

34
39
35
39
42
38
42
87
70
71
63
61
41
34
54
74
94
92
92
92
92
95
95
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
26
54
80
72
65
63
73
79
84
84

Medium Clouds (% Sky Obscured)

34
39
35
37
30
35
38
40
32
33
54
57
41
34
54
55
77
82
78
72
67
61
60
60

High Clouds (% Sky Obscured)

1
3
3
6
14
6
8
65
55
35
35
25
30
34
30
35
35
45
65
70
70
65
55
55

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
3
2
2

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
1
0
3
4
3
8
9
10
10
9
9
7

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
5
5
5
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

-11
-11
-11
-12
-12
-12
-12
-12
-13
-13
-13
-13
-13
-13
-13
-13
-12
-12
-13
-13
-13
-13
-13
-13

Feels Like (°C)

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

Dew Point (°C)

-16
-15
-15
-15
-15
-14
-15
-14
-15
-15
-15
-16
-16
-16
-16
-16
-16
-15
-15
-15
-15
-15
-14
-14

Relative Humidity (%)

66
72
73
76
81
83
83
84
84
84
83
79
78
76
75
73
73
78
81
84
86
86
88
88

Pressure (mb)

1005
1005
1004
1004
1004
1004
1003
1003
1002
1002
1002
1001
1001
1001
1001
1000
1000
1000
999
999
999
998
998
998

Ozone (du)

343
343
348
349
348
351
346
340
340
336
333
332
335
341
343
344
345
346
348
349
349
352
354
356

Thursday 1

Waxing Gibbous 96%

No Rise

No Set

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 09:39, Set: 15:02, Transit: 12:21. Moon - Rise: No Rise, Set: No Set. Civil Dark: 16:06 - 08:35. Nautical Dark: 17:07 - 07:34. Astro Dark: 18:02 - 06:39

Total Clouds (% Sky Obscured)

92
85
83
81
88
92
92
94
95
95
96
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
84
83
80
80
85
85
87
87
86
88
98
97
93
90
86
85
88
90
94
94
98
100
100

Medium Clouds (% Sky Obscured)

75
74
77
80
85
85
80
64
55
31
33
76
88
100
99
99
98
99
99
100
98
97
96
87

High Clouds (% Sky Obscured)

65
60
55
50
60
70
70
70
70
63
67
88
87
85
88
83
85
63
43
22
39
57
75
82

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

7
6
17
9
11
10
10
19
12
9
21
50
48
46
44
42
40
42
44
46
53
59
66
64

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.1
0.1
0.1
0.1
0
0.1
0.1
0.1
0.2
0.3
0.3
0.3

Wind Speed/Direction (mph)

6
6
6
6
6
6
6
7
7
7
7
7
12
12
13
13
12
12
13
13
13
12
12
11

Chance of Frost

Temperature (°C)

-13
-13
-13
-13
-12
-12
-12
-11
-11
-11
-11
-11
-10
-9
-9
-9
-9
-10
-10
-10
-10
-10
-10
-10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
88
88
88
88
86
88
88
86
86
87
85
85
85
85
85
85
85
85
85
85
85

Pressure (mb)

998
998
997
997
997
997
997
996
996
996
996
996
991
990
990
990
990
989
989
989
988
988
988
988

Ozone (du)

357
359
360
359
359
360
363
364
363
361
358
358
358
359
359
361
362
363
365
366
368
366
365
363

Friday 2

Waxing Gibbous 100%

13:37

11:18

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 09:39, Set: 15:04, Transit: 12:21. Moon - Rise: 13:37, Set: 11:18. Civil Dark: 16:07 - 08:35. Nautical Dark: 17:09 - 07:34. Astro Dark: 18:04 - 06:39

Total Clouds (% Sky Obscured)

100
100
100
99
97
97
97
97
95
94
94
97
99
99
98
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

100
100
99
96
89
87
86
88
84
83
82
80
79
79
80
82
84
83
82
82
80
76
73
62

Medium Clouds (% Sky Obscured)

76
59
41
25
6
10
13
17
14
10
6
6
5
5
23
32
44
61
77
94
95
96
95
90

High Clouds (% Sky Obscured)

91
100
88
77
65
56
46
40
34
27
16
14
11
7
11
15
24
34
49
64
60
51
33
20

ISS Passover

Visibility (miles)

0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

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

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

Precipitation Probability (%)

62
59
59
59
59
50
40
30
29
29
27
27
29
33
27
23
19
22
25
28
24
20
15
14

Precipitation Amount (mm)

0.3
0.2
0.2
0.3
0.3
0.2
0.1
0
0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-13
-12
-12
-12
-12
-11
-11
-11
-10
-9
-9
-8
-8
-8
-8
-8
-9
-9
-9
-10
-12
-12
-13
-14

Relative Humidity (%)

83
83
83
85
85
85
85
85
85
85
85
85
85
85
84
84
84
83
85
85
85
85
85
85

Pressure (mb)

988
987
987
987
987
987
987
987
988
988
988
988
988
988
989
989
989
989
990
990
990
991
991
992

Ozone (du)

362
360
359
359
358
358
358
359
359
359
358
358
359
359
360
361
362
362
363
364
365
366
367
368

Saturday 3

Full Moon 100%

15:56

11:10

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

Sun - Rise: 09:38, Set: 15:06, Transit: 12:22. Moon - Rise: 15:56, Set: 11:10. Civil Dark: 16:09 - 08:34. Nautical Dark: 17:10 - 07:33. Astro Dark: 18:05 - 06:38

Total Clouds (% Sky Obscured)

97
96
94
98
99
99
99
100
100
100
100
99
98
97
88
79
78

Low Clouds (% Sky Obscured)

52
38
48
59
69
72
73
75
79
83
87
90
93
94
88
79
78

Medium Clouds (% Sky Obscured)

82
78
73
70
57
46
33
19
11
8
5
6
3
0
1
2
3

High Clouds (% Sky Obscured)

11
2
0
0
2
2
2
3
7
9
11
5
2
0
1
2
3

ISS Passover

Visibility (miles)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Fog (%)

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
Snow
Snow
Snow
Snow
None
None
None
None

Precipitation Probability (%)

13
11
13
13
14
14
14
15
37
49
59
52
44
34
31
27
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.3
0.2
0.1
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-12
-12
-12
-12
-12
-12
-12
-11
-11
-11
-11
-11
-10
-10
-10
-10

Feels Like (°C)

-17
-17
-17
-17
-17
-17
-17
-16
-16
-15
-15
-16
-15
-15
-15
-15
-15

Dew Point (°C)

-14
-14
-14
-14
-14
-14
-14
-14
-13
-13
-13
-13
-13
-12
-12
-12
-13

Relative Humidity (%)

85
85
85
85
85
86
84
85
85
85
85
85
85
85
85
85
83

Pressure (mb)

992
993
993
993
993
994
994
994
993
993
993
993
994
994
994
995
996

Ozone (du)

369
371
372
374
375
376
374
372
371
373
375
378
378
379
379
380
382

Forecast for Säynätsalo, Jyväskylä, Finland (62.14,25.76)

Generated: 28/12/25 21:07:16. Forecast: 28/12/25 to 03/01/26. Timezone: UTC+2.00