Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 24

First Quarter 57%

12:51

04:41

20 OK
21 OK
22 Good
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

Sun - Rise: 05:34, Set: 21:03, Transit: 13:20. Moon - Rise: 12:51, Set: 04:41. Civil Dark: 21:53 - 04:43. Nautical Dark: 23:06 - 03:29. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

31
24
14
82
97
96
95
93
97
100
100
100
100
100
100
100
100
96
91
94
99
87
97
96

Low Clouds (% Sky Obscured)

9
2
1
12
43
32
80
71
84
77
76
76
82
41
61
66
77
74
78
81
98
73
93
91

Medium Clouds (% Sky Obscured)

2
10
14
80
95
95
95
91
96
99
100
100
100
99
98
95
100
85
58
55
53
35
32
59

High Clouds (% Sky Obscured)

0
0
0
1
1
0
0
0
20
77
100
100
78
100
45
35
20
20
20
15
20
20
20
16

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
5
4
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
Very Light Rain
Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
3
11
19
28
26
26
25
13
5
6
16
12
10
16
40
79
78
53
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

37
43
45
50
59
62
67
66
71
77
79
77
76
65
58
56
62
56
61
57
65
82
88
82

Pressure (mb)

1004
1005
1005
1004
1004
1003
1002
1001
1000
999
998
997
996
995
994
994
993
993
992
992
991
991
991
991

Ozone (du)

378
379
381
382
386
389
392
395
397
399
403
407
409
411
418
418
425
427
428
427
425
425
426
429

Saturday 25

Waxing Gibbous 68%

14:27

04:42

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

Sun - Rise: 05:31, Set: 21:06, Transit: 13:20. Moon - Rise: 14:27, Set: 04:42. Civil Dark: 21:56 - 04:40. Nautical Dark: 23:10 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

91
83
62
85
66
64
59
50
45
40
35
30
5
67
87
40
84
76
100
86
63
73
95
36

Low Clouds (% Sky Obscured)

85
73
47
19
10
10
10
10
4
3
5
5
5
1
53
2
3
5
10
30
47
15
83
10

Medium Clouds (% Sky Obscured)

75
60
56
78
60
51
55
35
35
15
15
15
5
67
70
40
84
76
100
76
25
66
55
36

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
15
9
10
10
5
15
20
30
35
35
40
45
43
7
2
1

ISS Passover

Visibility (miles)

9
9
9
9
0
3
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

22
7
8
35
41
29
6
4
3
1
1
1
1
3
14
19
6
8
8
8
4
2
2
1

Precipitation Amount (mm)

0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
3
3
8
15
16
16
16
16
16
16
15
15
15
16
17
17
18
17
17
16
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
-1
-2
-2
-0
-2
-4
-8
-9
-10
-10
-10
-10
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9

Relative Humidity (%)

75
75
70
73
94
83
71
54
51
50
49
47
46
44
40
38
36
33
32
32
33
33
33
35

Pressure (mb)

991
992
992
993
993
994
995
995
996
997
998
999
1000
1000
1001
1002
1002
1003
1004
1004
1005
1006
1007
1008

Ozone (du)

432
433
433
430
428
427
427
427
425
422
419
416
417
419
420
420
420
420
421
422
425
426
427
428

Sunday 26

Waxing Gibbous 77%

15:57

04:41

20 Good
21 OK
22 OK
23 Good
00 Good
01 Good
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 Bad
19 OK

Sun - Rise: 05:28, Set: 21:08, Transit: 13:20. Moon - Rise: 15:57, Set: 04:41. Civil Dark: 21:59 - 04:37. Nautical Dark: 23:15 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

13
23
32
2
0
0
0
0
0
0
0
0
8
18
100
100
100
100
100
86
73
59
43
27

Low Clouds (% Sky Obscured)

1
0
1
1
0
0
0
0
0
0
0
0
0
0
25
7
29
51
63
53
43
33
22
11

Medium Clouds (% Sky Obscured)

10
18
21
0
0
0
0
0
0
0
0
0
5
12
75
80
85
100
100
83
67
49
27
18

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
0
0
0
0
0
15
20
29
36
37
21
21
24
21
16

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

38
40
50
56
58
59
59
59
58
58
57
53
49
45
35
29
28
28
34
37
33
37
33
32

Pressure (mb)

1009
1010
1010
1011
1011
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015

Ozone (du)

427
429
433
438
443
445
447
451
452
453
455
455
454
452
452
453
453
457
456
456
456
454
450
443

Monday 27

Waxing Gibbous 86%

17:25

04:40

20 OK
21 OK
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 OK
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

Sun - Rise: 05:26, Set: 21:11, Transit: 13:19. Moon - Rise: 17:25, Set: 04:40. Civil Dark: 22:02 - 04:33. Nautical Dark: 23:20 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

12
8
4
0
0
0
0
0
0
0
0
5
5
34
60
91
94
97
100
96
92
88
55
22

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
5
5
12
10
15
13
17
25
30
25
25
9
1

Medium Clouds (% Sky Obscured)

11
7
4
0
0
0
0
0
0
0
0
1
5
24
44
66
68
62
67
96
92
48
32
16

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
7
4
9
9
2
1
8
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 (%)

9
8
6
0
0
0
0
2
13
11
6
8
16
16
5
4
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

33
35
38
42
50
52
52
53
57
57
62
64
85
88
80
53
41
34
29
27
27
29
31
37

Pressure (mb)

1015
1016
1016
1016
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1017

Ozone (du)

438
437
436
434
432
432
437
441
442
444
446
451
452
455
455
457
458
455
453
451
449
448
448
446

Tuesday 28

Waxing Gibbous 92%

18:53

04:39

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

Sun - Rise: 05:23, Set: 21:13, Transit: 13:19. Moon - Rise: 18:53, Set: 04:39. Civil Dark: 22:05 - 04:30. Nautical Dark: 23:25 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

2
2
2
2
0
0
0
0
1
3
4
7
1
99
98
92
77
57
61
72
86
100
99
98

Low Clouds (% Sky Obscured)

1
1
1
1
0
0
0
0
0
0
0
0
0
30
38
44
47
48
47
64
81
97
77
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
59
52
39
22
14
17
23
37
50
51
66

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
4
2
0
84
73
61
58
56
52
49
48
47
67
82

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
2
2
1
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
1
1
-1
-1
-2
-2
-3
-3
-4
-3
-1
2
3
4
3
3
4
4
7
7
6
6

Dew Point (°C)

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

Relative Humidity (%)

42
47
51
58
63
61
58
60
65
67
68
62
54
47
43
38
34
33
34
33
36
40
43
48

Pressure (mb)

1017
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1017
1017
1017
1017
1017
1016
1017
1017
1017
1017

Ozone (du)

445
441
439
437
435
435
436
437
436
436
437
436
433
432
430
429
428
428
428
429
429
429
429
429

Wednesday 29

Waxing Gibbous 97%

No Rise

04:39

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 OK
14 OK
15 OK
16 Good
17 Good
18 Good
19 Good

Sun - Rise: 05:20, Set: 21:16, Transit: 13:19. Moon - Rise: No Rise, Set: 04:39. Civil Dark: 22:09 - 04:27. Nautical Dark: 23:30 - 03:03. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
94
89
83
76
72
72
81
87
90
91
92
91
84
78
72
58
43
28
23
17
11
9
6

Low Clouds (% Sky Obscured)

40
44
54
35
21
15
10
12
16
18
23
25
26
26
26
16
10
5
1
1
0
0
1
2

Medium Clouds (% Sky Obscured)

71
75
77
73
66
58
47
47
43
43
50
49
48
60
56
48
35
21
7
6
6
5
5
4

High Clouds (% Sky Obscured)

99
67
33
0
0
0
3
3
7
26
33
28
25
27
21
22
16
12
5
4
3
1
1
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 (%)

4
4
5
4
5
6
7
6
2
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)

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

Chance of Frost

Temperature (°C)

8
7
6
6
5
4
4
3
3
2
2
3
4
5
7
8
10
11
12
13
13
13
13
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
58
64
68
75
73
72
72
69
69
68
62
55
50
44
37
33
30
27
25
25
26
27
32

Pressure (mb)

1018
1018
1019
1019
1020
1020
1021
1021
1021
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

429
429
428
427
426
426
425
425
424
424
424
423
423
422
422
421
421
421
420
420
419
418
417
417

Thursday 30

Waxing Gibbous 99%

20:21

04:38

20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 OK
11 OK
12 OK
13 Good
14 Good

Sun - Rise: 05:17, Set: 21:18, Transit: 13:19. Moon - Rise: 20:21, Set: 04:38. Civil Dark: 22:12 - 04:23. Nautical Dark: 23:35 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

5
4
3
2
10
18
28
19
9
0
0
1
1
10
20
30
20
10
0

Low Clouds (% Sky Obscured)

3
3
2
2
2
1
1
1
0
0
0
1
1
7
12
17
16
10
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
10
18
28
19
9
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
7
6
5
5
4
3
2
2
2
2
3
5
7
8
10
11
11
11

Feels Like (°C)

10
10
4
5
6
6
5
5
1
1
1
0
1
1
6
7
6
7
7

Dew Point (°C)

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

Relative Humidity (%)

39
48
50
53
55
59
63
69
72
74
77
67
60
53
48
44
40
36
33

Pressure (mb)

1023
1024
1024
1024
1024
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025

Ozone (du)

416
415
414
413
412
412
411
411
413
414
416
415
414
414
414
415
416
417
418

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

Generated: 24/04/26 20:09:56. Forecast: 24/04/26 to 30/04/26. Timezone: UTC+3.00