Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 92%

17:25

04:40

03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Bad
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 OK
23 OK
00 OK
01 OK
02 OK

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
3
2
2
45
43
66
100
86
98
98
100
74
81
81
82
65
29
25
33
41
23

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
45
43
54
52
70
45
42
35
35
40
62
74
61
29
25
33
41
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
34
60
39
59
86
97
48
27
8
2
2
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
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
10
10
12
12
12
14
14
14
14
14
14
14
13
13
12
11
10
9
9
9
9
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
60
63
67
69
64
54
42
39
37
34
32
30
31
31
34
36
39
44
49
52
56
59
61

Pressure (mb)

1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1020
1020
1021
1021
1022
1022
1023
1023

Ozone (du)

458
460
461
461
461
460
458
457
458
462
465
470
473
474
470
467
465
462
459
459
459
456
455
455

Wednesday 29

Waxing Gibbous 97%

18:53

04:39

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

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)

27
26
7
0
0
0
0
11
5
18
27
50
88
55
68
38
76
78
100
100
100
99
100
100

Low Clouds (% Sky Obscured)

27
26
7
0
0
0
0
11
5
18
27
31
42
45
38
20
0
0
0
9
16
53
73
76

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
7
2
34
19
76
68
49
91
100
84
96
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
25
72
26
32
35
35
64
100
100
100
42
100
100

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
3
20
39

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
8
8
8
9
9
10
11
11
11
11
11
10
10
10
9
8
5
5
6
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
66
67
70
63
56
47
39
33
29
28
27
26
26
26
26
30
37
46
53
57
64
76
83

Pressure (mb)

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

Ozone (du)

456
456
454
455
454
449
446
444
440
438
438
437
434
432
431
429
428
426
423
420
419
416
414
413

Thursday 30

Waxing Gibbous 99%

20:21

04:39

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 Bad
21 OK
22 OK
23 Good
00 Good
01 Good
02 Good

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 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
91
88
82
81
97
100
100
94
100
71
44
48
56
37
19
0
0
0
0

Low Clouds (% Sky Obscured)

82
87
90
89
100
76
76
68
61
67
86
72
64
53
51
39
35
14
9
5
0
0
0
0

Medium Clouds (% Sky Obscured)

100
98
79
52
59
36
31
41
19
11
23
10
2
25
27
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
99
79
76
22
40
35
11
41
88
97
82
64
82
28
9
25
40
27
13
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
Very 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

Precipitation Probability (%)

46
57
63
63
36
9
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.2
0.2
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
7
8
9
10
10
11
12
11
11
10
9
8
6
4
4
4
4
3
3

Chance of Frost

Temperature (°C)

4
4
4
4
4
5
6
8
10
12
12
13
13
14
15
15
14
13
12
10
10
9
9
8

Feels Like (°C)

1
2
2
2
2
3
4
5
7
8
9
10
10
11
12
12
12
11
10
9
8
8
7
8

Dew Point (°C)

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

Relative Humidity (%)

91
93
94
93
96
94
91
84
77
67
63
62
60
57
53
52
58
61
67
76
73
72
74
81

Pressure (mb)

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

Ozone (du)

411
410
409
407
407
406
406
405
405
405
404
404
403
402
400
399
397
396
395
393
391
390
390
389

Friday 1

Full Moon 100%

21:53

04:38

03 Good
04 Good
05 Good
06 OK
07 OK
08 Bad
09 OK
10 OK
11 Good
12 OK
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
02 OK

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 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

2
3
5
24
44
63
47
30
14
36
59
80
87
92
96
63
33
3
5
1
2
10
16
22

Low Clouds (% Sky Obscured)

2
3
5
3
2
0
0
0
0
8
16
24
15
7
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
15
29
44
29
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
10
23
55
47
30
14
36
55
67
77
86
93
63
33
3
5
1
1
10
16
22

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)

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

Chance of Frost

Temperature (°C)

7
7
6
6
8
10
12
14
15
17
18
18
19
19
19
18
16
14
12
10
9
8
7
6

Feels Like (°C)

7
7
6
6
8
10
10
11
12
14
15
16
16
15
14
14
13
11
9
7
7
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

87
90
90
88
82
69
61
54
47
40
37
33
31
31
34
40
47
56
62
69
73
73
76
81

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1020
1019
1019
1019
1019
1018
1018
1018
1017
1016

Ozone (du)

388
390
388
386
384
385
386
385
384
382
381
380
379
380
380
380
379
379
378
379
379
378
377
375

Saturday 2

Waning Gibbous 98%

23:26

04:39

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

Sun - Rise: 05:15, Set: 21:23, Transit: 13:19. Moon - Rise: 23:26, Set: 04:39. Civil Dark: 22:18 - 04:20. Nautical Dark: 23:46 - 02:45. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

16
7
2
2
1
1
0
0
0
0
0
0
0
1
1
1
0
0
1
1
2
4
8
13

Low 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

Medium 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

High Clouds (% Sky Obscured)

16
7
0
0
1
1
0
0
0
0
0
0
0
0
1
1
0
0
1
1
1
2
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)

7
7
6
6
8
9
10
11
11
12
13
13
14
13
13
13
12
11
10
10
10
10
9
9

Chance of Frost

Temperature (°C)

6
6
6
6
8
10
12
14
16
17
18
18
18
17
17
16
14
12
11
10
9
8
8
8

Feels Like (°C)

5
5
5
4
6
8
10
11
13
14
14
14
14
14
14
13
13
13
13
8
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

81
82
81
79
70
59
51
44
40
37
34
32
32
37
44
51
55
59
65
68
72
78
79
82

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1012
1012
1012

Ozone (du)

375
374
373
373
373
375
377
376
377
377
378
379
380
381
382
383
383
382
382
382
381
381
380
380

Sunday 3

Waning Gibbous 95%

00:59

04:43

03 OK
04 Bad
05 Bad
06 Bad
07 OK
08 Good
09 Good
10 Good
11 Good
12 OK
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

Sun - Rise: 05:12, Set: 21:26, Transit: 13:19. Moon - Rise: 00:59, Set: 04:43. Civil Dark: 22:21 - 04:17. Nautical Dark: 23:52 - 02:39. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

36
57
74
52
31
7
8
9
9
41
71
100
97
91
87
85
83
85
90
95
95
96
98
100

Low Clouds (% Sky Obscured)

0
0
0
1
1
0
0
0
0
0
1
0
1
1
2
1
0
0
11
24
34
21
6
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
7
11
20
16
15
19
23
18
13
13
11
13
28
43
54

High Clouds (% Sky Obscured)

33
57
74
52
31
2
3
4
5
36
68
99
97
91
87
85
83
85
86
72
60
72
86
100

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
1
1
1

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)

9
8
7
7
7
7
8
8
9
10
11
13
14
13
13
12
11
10
8
7
7
6
6
6

Chance of Frost

Temperature (°C)

8
8
7
7
9
11
12
14
15
16
17
17
17
17
16
16
14
12
11
10
9
8
8
8

Feels Like (°C)

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

Dew Point (°C)

5
5
5
6
6
5
5
5
6
6
6
7
7
7
7
6
6
6
6
5
5
5
5
5

Relative Humidity (%)

85
85
87
88
78
68
60
56
53
50
50
51
51
51
52
52
58
64
72
73
76
78
78
79

Pressure (mb)

1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012

Ozone (du)

379
380
381
381
382
382
382
381
381
381
378
375
373
372
371
370
370
370
371
370
370
369
370
371

Monday 4

Waning Gibbous 95%

02:19

04:53

Sun - Rise: 05:09, Set: 21:28, Transit: 13:19. Moon - Rise: 02:19, Set: 04:53. Civil Dark: 22:24 - 04:13. Nautical Dark: 23:59 - 02:31. 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: 28/04/26 03:07:26. Forecast: 28/04/26 to 04/05/26. Timezone: UTC+3.00