Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 21%

05:35

14:46

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

Sun - Rise: 06:09, Set: 20:36, Transit: 13:22. Moon - Rise: 05:35, Set: 14:46. Civil Dark: 21:22 - 05:23. Nautical Dark: 22:23 - 04:22. Astro Dark: 23:47 - 02:51

Total Clouds (% Sky Obscured)

10
14
20
8
2
2
9
36
27
40
15
7
29
40
36
30
36
15
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

10
0
0
0
0
0
0
0
0
3
11
1
3
3
3
6
21
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
5
30
20
16
0
4
29
40
36
30
36
15
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
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
1

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
1
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)

4
4
3
3
3
4
4
4
4
5
7
7
7
7
7
5
4
4
4
4
3
3
4
4

Chance of Frost

Temperature (°C)

1
1
1
1
4
6
8
10
11
11
12
12
11
11
10
9
7
6
5
4
4
3
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
84
83
75
66
59
54
48
44
41
42
42
44
48
52
64
68
71
72
73
75
73
74

Pressure (mb)

1029
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1032
1032
1033
1033
1033
1033
1034
1034

Ozone (du)

386
385
385
385
384
384
385
385
386
388
391
394
395
397
397
396
393
393
394
396
396
398
397
397

Tuesday 14

Waning Crescent 13%

05:34

16:22

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

Sun - Rise: 06:06, Set: 20:38, Transit: 13:22. Moon - Rise: 05:34, Set: 16:22. Civil Dark: 21:25 - 05:20. Nautical Dark: 22:26 - 04:18. Astro Dark: 23:53 - 02:43

Total Clouds (% Sky Obscured)

0
3
0
0
0
0
0
0
13
73
99
39
5
15
4
21
16
9
2
0
0
0
21
24

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
10
51
85
33
0
8
2
20
16
8
1
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
41
96
20
5
15
4
2
3
0
2
0
0
0
16
20

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
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)

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

Chance of Frost

Temperature (°C)

3
2
2
2
4
7
9
11
12
13
13
13
13
12
12
11
8
6
6
5
5
4
4
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
76
76
74
68
58
52
47
44
40
37
35
35
36
39
44
51
54
55
55
56
58
60
63

Pressure (mb)

1034
1034
1034
1034
1035
1035
1035
1035
1034
1034
1034
1033
1033
1033
1032
1032
1032
1032
1032
1032
1033
1032
1032
1032

Ozone (du)

399
398
398
401
402
403
405
405
407
409
413
420
425
429
432
433
434
435
437
439
442
442
434
430

Wednesday 15

Waning Crescent 6%

05:33

17:59

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

Sun - Rise: 06:03, Set: 20:41, Transit: 13:22. Moon - Rise: 05:33, Set: 17:59. Civil Dark: 21:27 - 05:16. Nautical Dark: 22:30 - 04:14. Astro Dark: 00:01 - 02:35

Total Clouds (% Sky Obscured)

25
50
100
99
24
67
87
66
6
9
78
66
35
44
88
83
100
97
93
90
93
97
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
17
5
5
5
0
0
0
0
0
0
17
34
50
61

Medium Clouds (% Sky Obscured)

0
2
77
99
24
49
87
66
6
9
77
66
35
44
43
45
15
40
60
73
79
82
90
90

High Clouds (% Sky Obscured)

25
30
100
71
24
67
36
31
6
9
20
20
20
20
77
67
86
61
35
12
30
47
45
50

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
1
0
1
11
11
1
0
0
14
20
22
37

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
66
68
67
65
56
50
44
41
42
42
43
47
53
57
62
70
75
79
78
81
81
82
80

Pressure (mb)

1032
1032
1032
1032
1032
1032
1031
1031
1031
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027

Ozone (du)

425
424
423
423
423
421
421
418
416
413
410
407
403
398
394
388
383
381
377
374
374
374
374
375

Thursday 16

Waning Crescent 2%

05:32

19:40

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
02 Bad
03 Bad

Sun - Rise: 06:00, Set: 20:43, Transit: 13:22. Moon - Rise: 05:32, Set: 19:40. Civil Dark: 21:30 - 05:13. Nautical Dark: 22:34 - 04:10. Astro Dark: 00:09 - 02:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
98
98
97
97
97
90
82
76
79
83
86
81

Low Clouds (% Sky Obscured)

71
81
87
94
100
94
88
82
88
94
100
96
93
89
90
92
94
90
82
76
79
81
82
77

Medium Clouds (% Sky Obscured)

95
95
100
100
100
94
89
83
89
94
89
90
90
70
78
66
55
47
51
29
29
25
42
2

High Clouds (% Sky Obscured)

60
67
68
76
79
69
84
99
100
99
94
78
63
44
27
14
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

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

Precipitation Probability (%)

52
67
58
51
41
37
32
11
11
14
21
24
31
23
27
17
14
10
15
7
11
9
3
3

Precipitation Amount (mm)

0.2
0.4
0.2
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
5
6
6
7
7
7
7
8
8
8
8
7
7
7
6
6
5
5
5
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
91
91
88
79
71
69
70
75
81
82
82
82
85
85
88
88
87
83
83
82
80
80
80

Pressure (mb)

1026
1026
1025
1025
1025
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022

Ozone (du)

373
371
368
366
365
366
366
367
367
367
367
367
366
365
365
365
365
367
370
372
374
376
378
380

Friday 17

New Moon 0%

05:32

21:27

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

Sun - Rise: 05:57, Set: 20:46, Transit: 13:21. Moon - Rise: 05:32, Set: 21:27. Civil Dark: 21:33 - 05:10. Nautical Dark: 22:37 - 04:05. Astro Dark: 00:18 - 02:14

Total Clouds (% Sky Obscured)

74
78
72
60
51
46
46
49
45
49
57
77
82
87
87
88
89
62
36
9
42
74
100
96

Low Clouds (% Sky Obscured)

71
69
61
52
46
46
43
44
42
40
38
53
68
82
82
81
80
53
27
0
19
39
61
66

Medium Clouds (% Sky Obscured)

17
36
2
2
2
0
0
0
0
0
0
0
0
0
4
8
12
9
7
4
32
61
90
76

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
28
59
89
59

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 (%)

10
9
1
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)

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

Chance of Frost

Temperature (°C)

5
5
5
5
6
7
8
9
10
10
11
12
12
12
12
11
10
9
7
6
5
4
4
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
82
79
72
69
66
64
60
55
51
49
50
51
51
54
58
62
64
67
71
71
72
73

Pressure (mb)

1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1024
1024

Ozone (du)

381
385
390
398
405
409
412
415
419
425
428
429
423
418
412
409
406
403
402
400
399
397
394
392

Saturday 18

Waxing Crescent 2%

05:33

23:22

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

Sun - Rise: 05:54, Set: 20:48, Transit: 13:21. Moon - Rise: 05:33, Set: 23:22. Civil Dark: 21:36 - 05:07. Nautical Dark: 22:41 - 03:57. Astro Dark: 00:28 - 02:01

Total Clouds (% Sky Obscured)

93
90
89
88
86
66
46
23
51
75
98
86
74
65
53
41
34
29
31
25
17
9
0
2

Low Clouds (% Sky Obscured)

66
69
56
44
26
17
9
0
15
34
53
56
52
44
30
17
6
4
2
1
1
2
0
2

Medium Clouds (% Sky Obscured)

59
46
49
56
58
42
28
15
35
59
75
67
56
35
16
14
13
9
5
4
3
1
0
0

High Clouds (% Sky Obscured)

30
0
0
0
0
0
1
0
1
1
2
1
1
0
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
2
2
2
2
2
1
1
1
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)

3
3
3
3
4
4
4
4
4
4
4
4
4
4
5
5
4
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

3
3
2
4
6
7
9
11
12
12
12
12
12
12
12
10
8
7
6
5
4
4
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
73
72
67
62
58
56
51
48
46
43
42
42
41
41
48
55
63
65
66
68
69
72
74

Pressure (mb)

1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026

Ozone (du)

391
389
387
387
388
388
388
388
388
388
388
388
389
390
392
393
395
397
398
399
400
401
402
403

Sunday 19

Waxing Crescent 6%

05:37

01:21

Sun - Rise: 05:51, Set: 20:51, Transit: 13:21. Moon - Rise: 05:37, Set: 01:21. Civil Dark: 21:39 - 05:03. Nautical Dark: 22:45 - 03:52. Astro Dark: 00:41 - 01:40

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: 13/04/26 04:56:04. Forecast: 13/04/26 to 19/04/26. Timezone: UTC+3.00