Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 22

Waxing Crescent 34%

07:31

04:09

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

Sun - Rise: 05:43, Set: 20:58, Transit: 13:20. Moon - Rise: 07:31, Set: 04:09. Civil Dark: 21:47 - 04:53. Nautical Dark: 22:57 - 03:43. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

2
5
5
0
0
0
58
44
86
100
100
100
100
100
100
73
57
100
46
70
33
55
3
9

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
28
27
73
46
64
33
53
3
9

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
11
30
55
61
100
100
100
60
65
0
0
0
42
21
0
0
0

High Clouds (% Sky Obscured)

2
2
1
0
0
0
58
27
86
100
100
100
100
100
100
73
57
80
46
49
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
1
3
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)

4
5
5
5
6
6
7
7
9
11
12
12
13
12
14
15
15
15
13
15
13
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
65
66
67
67
66
64
67
66
55
50
46
43
43
41
40
39
42
50
50
58
59
54
44

Pressure (mb)

1017
1017
1017
1016
1015
1015
1014
1013
1013
1012
1011
1010
1010
1009
1007
1006
1006
1005
1005
1005
1005
1006
1007
1007

Ozone (du)

397
398
398
400
405
406
403
400
397
391
387
388
388
382
381
383
385
389
392
393
394
395
397
399

Thursday 23

Waxing Crescent 45%

09:17

04:31

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

Sun - Rise: 05:40, Set: 21:01, Transit: 13:20. Moon - Rise: 09:17, Set: 04:31. Civil Dark: 21:50 - 04:50. Nautical Dark: 23:02 - 03:39. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

4
0
0
1
2
9
41
4
26
21
26
39
37
81
72
88
97
95
83
100
100
91
92
99

Low Clouds (% Sky Obscured)

4
0
0
0
1
1
0
0
4
0
23
0
0
11
5
16
11
1
0
0
0
0
6
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
3
20
15
27
37
61
61
78
94
95
83
93
99
88
79
94

High Clouds (% Sky Obscured)

0
0
0
1
0
2
41
1
26
1
1
27
1
10
3
38
41
34
58
92
100
72
82
96

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)

12
15
13
11
12
12
11
11
12
13
14
13
14
13
13
12
12
11
10
10
9
8
7
7

Chance of Frost

Temperature (°C)

6
5
3
2
1
0
-1
0
1
2
4
5
6
8
9
10
11
10
11
10
8
7
6
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

44
42
45
46
51
52
55
54
50
44
40
36
34
33
32
30
30
31
33
37
40
41
45
48

Pressure (mb)

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

Ozone (du)

399
401
402
402
403
403
403
409
411
408
407
406
408
407
404
399
395
390
389
389
388
389
390
390

Friday 24

First Quarter 57%

11:07

04:39

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 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:37, Set: 21:03, Transit: 13:20. Moon - Rise: 11:07, Set: 04:39. Civil Dark: 21:53 - 04:47. Nautical Dark: 23:06 - 03:34. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
98
100
94
94
51
82
77
81
53
63
46
43
50
90
92
92
95
92
97
98
95
91
88

Low Clouds (% Sky Obscured)

4
1
34
58
54
50
49
69
65
38
45
36
32
33
38
35
24
42
54
64
51
59
67
75

Medium Clouds (% Sky Obscured)

80
84
55
58
48
32
47
24
20
16
20
13
7
29
56
59
65
72
70
77
90
90
88
86

High Clouds (% Sky Obscured)

97
93
96
93
86
1
16
2
30
2
4
2
25
3
1
1
1
13
10
10
15
15
1
2

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
7
11
13

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

Chance of Frost

Temperature (°C)

5
4
3
3
3
2
2
3
4
6
7
9
10
11
11
12
12
12
12
11
9
7
7
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
55
58
63
68
72
76
72
63
53
46
42
36
33
31
29
28
28
29
34
41
46
47
49

Pressure (mb)

1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1005
1005
1005
1005
1004
1004

Ozone (du)

391
393
396
396
396
394
391
389
388
386
384
381
378
377
378
381
379
376
375
374
375
378
383
386

Saturday 25

Waxing Gibbous 68%

12:51

04:41

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
21 Bad
22 Bad
23 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)

92
95
99
99
100
100
100
100
100
92
83
75
81
89
95
96
98
99
99
99
99
86
72
61

Low Clouds (% Sky Obscured)

76
77
79
76
74
71
66
61
56
56
56
54
62
71
84
83
81
72
66
62
37
24
13
1

Medium Clouds (% Sky Obscured)

88
91
94
96
98
100
100
100
100
84
70
58
68
79
89
91
94
96
97
98
99
86
72
61

High Clouds (% Sky Obscured)

35
35
55
51
3
3
5
25
30
35
30
30
25
20
20
15
15
15
10
5
10
10
20
10

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

Precipitation Probability (%)

30
39
45
38
30
19
17
16
13
25
35
46
61
74
87
85
85
79
66
51
30
22
13
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
58
59
62
68
73
73
73
67
59
52
54
50
42
37
38
36
33
35
44
51
56
62
64

Pressure (mb)

1003
1002
1001
1000
999
998
997
996
996
995
994
994
993
993
992
992
992
993
993
994
995
996
996
997

Ozone (du)

388
390
393
398
406
400
399
399
403
407
412
414
416
418
421
425
428
428
426
426
425
424
424
425

Sunday 26

Waxing Gibbous 77%

14:27

04:42

00 Bad
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
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 OK
22 OK
23 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)

49
43
35
31
32
43
42
34
35
43
59
75
83
92
100
89
75
49
43
41
39
27
15
3

Low Clouds (% Sky Obscured)

2
1
3
9
6
9
16
19
25
18
8
0
0
0
0
0
0
0
10
19
29
19
10
0

Medium Clouds (% Sky Obscured)

39
43
35
31
4
40
40
34
35
43
59
50
59
80
87
72
56
37
36
33
33
23
13
3

High Clouds (% Sky Obscured)

5
0
0
4
5
10
10
15
15
0
0
0
2
3
0
1
1
1
2
1
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 (%)

1
0
0
0
0
0
1
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)

12
12
12
11
11
11
11
12
13
14
15
15
15
15
16
15
15
15
14
13
12
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
71
74
71
74
80
80
80
74
69
63
60
55
51
51
54
54
53
54
56
59
62
65
70

Pressure (mb)

998
998
999
1000
1000
1001
1002
1003
1004
1004
1005
1006
1006
1007
1008
1008
1009
1010
1011
1011
1012
1013
1013
1014

Ozone (du)

424
422
422
423
423
424
424
424
424
424
423
422
422
423
424
426
428
429
431
435
438
442
440
439

Monday 27

Waxing Gibbous 86%

15:57

04:41

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

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)

5
7
7
12
16
23
28
30
30
31
45
61
75
87
98
87
76
68
53
39
36
32
39
31

Low Clouds (% Sky Obscured)

0
0
1
4
4
8
7
9
0
5
10
15
13
15
25
46
51
49
35
23
14
10
5
0

Medium Clouds (% Sky Obscured)

4
2
0
0
0
0
0
0
0
12
24
36
49
66
75
66
53
32
16
16
16
11
7
5

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
0
0
0
0
0
0
0
7
10
11
14
17
18
17
14
6
7
7
2
4
4
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
10
11
11
10
11
11
12
13
13
14
14
13
13
13
12
12
11
10
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-3
-3
-4
-4
-5
-6
-6
-5
-4
-3
-3
-3
-3
-3
-3
-3
-4
-5
-6
-7
-9
-10
-10
-11

Relative Humidity (%)

76
77
77
77
75
71
68
67
66
64
62
59
56
53
51
48
45
42
40
39
38
37
39
41

Pressure (mb)

1014
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020

Ozone (du)

438
435
432
429
425
422
419
418
418
418
419
420
420
419
417
416
416
417
417
417
417
417
416
415

Tuesday 28

Waxing Gibbous 92%

17:25

04:40

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)

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: 21/04/26 23:26:46. Forecast: 22/04/26 to 28/04/26. Timezone: UTC+3.00