Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 68%

12:51

04:41

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: 05:34, Set: 21:06, Transit: 13:20. Moon - Rise: 12:51, Set: 04:41. Civil Dark: 21:56 - 04:43. Nautical Dark: 23:10 - 03:29. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
97
98
97
100
100
100
100
100
100
100
100
81
80
90
94
96
97
39
60
86
96
88
76

Low Clouds (% Sky Obscured)

54
72
71
83
77
51
82
45
38
59
66
70
80
75
71
89
85
56
39
60
59
59
30
22

Medium Clouds (% Sky Obscured)

90
92
98
97
100
100
100
92
100
100
100
100
40
35
74
35
67
83
39
34
32
81
82
72

High Clouds (% Sky Obscured)

1
2
15
22
98
100
25
100
100
100
83
1
15
20
20
18
1
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
9
9
4
3
5
9

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

21
30
10
27
31
23
11
7
5
6
19
17
25
61
47
15
18
28
36
33
30
33
19
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
7
8
10
7
8
9
10
11
10
11
9
9
9
8
8
7
5
5
16
15
17
16

Chance of Frost

Temperature (°C)

4
5
5
4
4
4
5
6
7
9
8
9
9
8
7
6
7
6
5
3
2
1
0
2

Feels Like (°C)

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

Dew Point (°C)

-3
-3
-1
0
1
3
2
1
0
-1
-0
-1
-1
1
2
2
-1
-4
-4
-3
-1
-1
-2
-7

Relative Humidity (%)

60
60
66
76
80
91
82
70
59
51
55
52
53
59
74
72
59
48
52
63
86
89
83
55

Pressure (mb)

1002
1001
1000
999
998
997
996
995
994
994
993
993
992
992
991
991
990
990
990
991
992
993
994
994

Ozone (du)

386
390
393
394
395
398
401
405
409
415
418
420
420
419
420
423
426
429
432
434
434
433
434
433

Sunday 26

Waxing Gibbous 77%

14:27

04:42

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

Sun - Rise: 05:31, Set: 21:08, Transit: 13:20. Moon - Rise: 14:27, Set: 04:42. Civil Dark: 21:59 - 04:40. Nautical Dark: 23:15 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

69
29
25
50
50
60
35
53
45
43
27
58
75
49
37
40
43
32
11
2
2
1
1
0

Low Clouds (% Sky Obscured)

30
1
0
0
0
0
0
0
0
0
16
32
35
37
0
27
0
7
9
1
1
0
0
0

Medium Clouds (% Sky Obscured)

67
29
25
35
40
45
30
53
45
43
25
54
52
16
34
17
43
32
2
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
1
1
0
0
0
0
0
1
1
1
2
2
2
0
0
0
0
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 (%)

1
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
1
8
10
18
19
24
12
2
1
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)

17
17
17
17
15
15
16
17
18
18
18
18
18
17
17
16
16
15
13
11
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
52
51
53
53
53
51
48
44
39
35
34
33
31
32
36
39
44
49
53
54
56
56
56

Pressure (mb)

995
996
997
998
998
999
1000
1001
1001
1002
1002
1003
1004
1004
1005
1006
1006
1007
1008
1009
1009
1010
1011
1011

Ozone (du)

432
430
430
428
424
426
426
427
430
431
429
428
427
427
428
429
429
429
429
431
435
439
441
441

Monday 27

Waxing Gibbous 86%

15:57

04:41

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

Sun - Rise: 05:28, Set: 21:11, Transit: 13:20. Moon - Rise: 15:57, Set: 04:41. Civil Dark: 22:02 - 04:37. Nautical Dark: 23:20 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
2
2
4
2
1
20
85
100
100
100
100
100
100
87
72
42
28
4
2
1
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
3
28
38
41
62
52
50
48
30
0
4
2
1
0
0
0

Medium Clouds (% Sky Obscured)

0
2
2
2
2
1
20
63
67
67
66
100
100
100
76
57
27
25
1
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
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)

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
2
0
0
0
0
11
28
14
19
27
31
24
20
14
6
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-8
-9
-9
-9
-8
-7
-7
-9
-8
-8
-10
-10
-11
-9
-9
-8
-8
-9
-9
-9
-9
-9
-8

Relative Humidity (%)

54
51
51
52
52
52
49
42
35
34
34
28
27
26
29
28
31
33
35
37
38
40
43
47

Pressure (mb)

1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

444
449
450
450
452
456
459
462
463
464
465
466
465
463
462
462
461
460
460
460
461
460
461
461

Tuesday 28

Waxing Gibbous 92%

17:25

04:40

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

Sun - Rise: 05:26, Set: 21:13, Transit: 13:19. Moon - Rise: 17:25, Set: 04:40. Civil Dark: 22:05 - 04:33. Nautical Dark: 23:25 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
27
53
80
87
94
100
82
67
50
43
33
21
14
7
1
1
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
12
23
32
27
23
10
17
22
17
12
7
1
1
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
26
48
69
75
77
76
66
49
35
24
11
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
2
2
1
1
1
1
1
1
0
0
0
0
0
0
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
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)

11
12
11
11
11
12
13
13
15
15
16
15
15
15
14
14
13
12
11
10
9
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
50
49
53
56
55
53
47
42
37
34
32
32
32
33
33
35
38
42
48
52
56
59
62

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

462
463
462
462
462
463
463
463
464
463
461
459
459
460
462
462
462
460
459
457
456
456
456
457

Wednesday 29

Waxing Gibbous 97%

18:53

04:39

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

Sun - Rise: 05:23, Set: 21:16, Transit: 13:19. Moon - Rise: 18:53, Set: 04:39. Civil Dark: 22:09 - 04:30. Nautical Dark: 23:30 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
2
2
1
1
6
13
18
45
71
87
79
72
61
49
40
32
22
13
4
8
18

Low Clouds (% Sky Obscured)

0
0
0
1
0
0
0
6
13
18
24
29
34
41
47
54
47
39
32
21
11
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
21
43
63
42
21
0
0
0
0
0
0
0
3
6

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
4
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
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
9
8
8
9
9
10
11
11
12
12
12
12
12
12
11
11
9
8
6
6
5
5
5

Chance of Frost

Temperature (°C)

1
1
0
-0
-1
1
2
4
5
7
8
9
10
10
10
10
10
9
8
6
5
4
3
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
69
70
71
72
70
63
53
46
41
37
35
32
30
30
30
29
33
37
42
45
48
52
55

Pressure (mb)

1018
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1022
1022

Ozone (du)

458
457
457
458
459
459
457
456
454
452
449
445
441
435
431
427
424
423
422
421
422
423
424
425

Thursday 30

Waxing Gibbous 99%

20:21

04:39

02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
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: 05:20, Set: 21:18, Transit: 13:19. Moon - Rise: 20:21, Set: 04:39. Civil Dark: 22:12 - 04:27. Nautical Dark: 23:35 - 03:03. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

30
35
35
40
40
35
30
33
48
65
66
65
67
81
90
91
92
92
89
83
65
52
54
56

Low Clouds (% Sky Obscured)

0
0
0
0
1
2
0
0
0
0
2
8
22
46
60
63
51
38
24
18
11
15
22
41

Medium Clouds (% Sky Obscured)

8
9
14
15
19
14
18
25
27
29
40
48
61
49
37
18
13
15
16
12
10
10
9
8

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
23
45
62
48
31
17
19
28
37
33
29
25
16
8
0
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
3
1
1
2
1
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)

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

Chance of Frost

Temperature (°C)

1
0
0
-1
-1
1
3
5
7
9
10
11
12
13
13
13
13
11
10
9
9
9
9
8

Feels Like (°C)

-0
-1
-4
-4
-4
-3
-3
-2
3
4
4
4
5
5
10
11
10
10
10
10
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

58
61
61
63
63
55
48
42
45
48
50
48
46
44
48
54
58
64
69
76
78
80
80
84

Pressure (mb)

1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1020
1020
1020
1020
1020
1021
1021
1021
1021

Ozone (du)

425
425
424
423
421
421
421
421
421
421
421
420
419
418
415
411
408
406
404
402
400
399
398
395

Friday 1

Full Moon 100%

21:53

04:38

Sun - Rise: 05:17, Set: 21:21, Transit: 13:19. Moon - Rise: 21:53, Set: 04:38. Civil Dark: 22:15 - 04:23. Nautical Dark: 23:41 - 02:57. Astro Dark: N/A - N/A

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: 25/04/26 02:57:54. Forecast: 25/04/26 to 01/05/26. Timezone: UTC+3.00