Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

17:25

04:40

20 Bad
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 Good
10 OK
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

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)

49
43
28
4
4
3
2
0
1
1
2
2
1
8
16
54
91
97
96
99
92
82
64
63

Low Clouds (% Sky Obscured)

19
27
21
1
0
0
0
0
0
0
0
0
1
8
16
53
51
50
40
35
36
34
27
60

Medium Clouds (% Sky Obscured)

43
2
2
0
0
0
0
0
0
0
0
0
0
0
0
35
44
50
60
85
75
67
43
4

High Clouds (% Sky Obscured)

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

5
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)

15
14
13
12
12
12
12
12
12
12
12
12
13
13
15
15
15
14
14
14
13
14
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
55
54
54
55
54
56
58
59
62
67
66
59
52
44
39
35
33
32
31
31
30
32
36

Pressure (mb)

1015
1015
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

455
455
454
452
452
454
456
459
458
455
453
452
454
457
462
465
467
469
468
465
462
460
459
458

Tuesday 28

Waxing Gibbous 92%

18:53

04:39

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

71
60
23
11
0
3
2
3
2
2
0
0
0
0
32
37
37
32
36
39
39
46
50
53

Low Clouds (% Sky Obscured)

70
59
23
11
0
3
2
3
2
0
0
0
0
0
32
37
37
32
35
26
16
25
30
30

Medium Clouds (% Sky Obscured)

1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
2
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
2
36
39
45
30
28

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

38
43
48
52
55
58
60
62
65
67
68
66
57
47
39
34
31
28
26
25
24
24
25
31

Pressure (mb)

1020
1021
1021
1022
1022
1023
1023
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1023
1023

Ozone (du)

457
456
455
455
454
457
460
460
457
453
449
445
444
445
444
443
441
440
439
436
434
432
430
428

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 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

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)

49
54
83
97
63
88
100
100
100
99
99
99
100
100
100
99
98
93
95
97
98
100
98
96

Low Clouds (% Sky Obscured)

27
29
33
20
10
5
5
5
36
71
77
81
85
99
88
75
76
72
62
75
87
100
87
73

Medium Clouds (% Sky Obscured)

40
48
59
59
63
88
100
95
97
97
60
64
67
61
76
77
76
43
65
60
55
46
55
62

High Clouds (% Sky Obscured)

20
23
60
92
51
64
93
100
88
21
48
31
71
100
100
62
28
58
44
51
61
70
56
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
7
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
1
19
43
52
51
41
32
21
31
48
48
12
6
2
2
0
1
1
0
0
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)

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

Chance of Frost

Temperature (°C)

7
6
4
4
4
3
3
3
3
4
4
4
5
5
7
9
10
10
12
12
13
13
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

39
47
51
56
62
73
86
93
94
96
96
96
94
91
85
72
68
69
65
63
62
59
63
67

Pressure (mb)

1023
1023
1024
1024
1024
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1021

Ozone (du)

425
423
420
417
414
412
410
408
406
406
406
407
408
407
406
405
403
402
401
400
399
397
396
394

Thursday 30

Waxing Gibbous 99%

20:21

04:38

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

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)

95
65
35
5
3
2
0
0
0
0
6
17
22
28
37
42
31
21
10
20
30
43
32
36

Low Clouds (% Sky Obscured)

60
42
23
5
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

72
48
25
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

26
20
12
0
0
0
0
0
0
0
6
17
22
28
37
42
31
16
10
20
30
39
29
24

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)

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

Chance of Frost

Temperature (°C)

12
11
10
10
9
9
8
7
7
6
6
8
9
11
13
15
16
17
18
19
19
18
18
16

Feels Like (°C)

10
9
9
8
7
7
6
6
6
5
4
6
7
9
10
11
13
14
15
16
15
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

71
75
77
78
77
77
84
90
91
91
90
82
69
60
52
45
39
35
32
30
33
38
43
51

Pressure (mb)

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

Ozone (du)

392
390
389
388
387
386
386
386
387
387
386
384
383
382
381
380
379
379
379
378
379
378
377
375

Friday 1

Full Moon 100%

21:53

04:39

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

Sun - Rise: 05:15, Set: 21:21, Transit: 13:19. Moon - Rise: 21:53, Set: 04:39. Civil Dark: 22:15 - 04:20. Nautical Dark: 23:41 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

32
34
31
33
36
52
68
55
42
32
22
10
2
0
0
0
1
2
2
3
4
5
3
2

Low Clouds (% Sky Obscured)

0
0
0
0
3
6
9
16
24
31
21
10
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)

19
27
31
33
36
49
62
43
19
2
2
0
0
0
0
0
0
0
0
0
0
0
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 (%)

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

Chance of Frost

Temperature (°C)

13
11
9
8
7
7
6
5
5
5
5
8
10
12
14
16
17
17
18
18
18
17
16
14

Feels Like (°C)

11
9
7
6
6
5
4
2
3
4
4
6
8
11
11
12
12
13
14
14
15
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

60
68
74
75
75
78
83
85
86
86
83
74
63
57
49
44
39
37
35
33
38
43
49
53

Pressure (mb)

1018
1018
1018
1017
1017
1017
1016
1015
1015
1014
1014
1014
1014
1013
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

375
376
376
376
376
377
376
375
374
373
372
372
371
371
372
373
373
374
374
375
375
375
376
375

Saturday 2

Waning Gibbous 98%

23:26

04:43

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 OK
10 OK
11 Bad
12 Bad
13 OK
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 05:12, Set: 21:23, Transit: 13:19. Moon - Rise: 23:26, Set: 04:43. Civil Dark: 22:18 - 04:17. Nautical Dark: 23:46 - 02:45. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
15
32
51
44
37
31
46
61
72
74
67

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
20
30
47
61

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
19
28
38
47

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
9
15
13
12
11
18
24
31
31
31

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
8
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
1
2
1
13
23
32
39
40

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

Chance of Frost

Temperature (°C)

13
11
10
9
8
7
7
7
7
7
7
8
10
11
13
14
15
15
15
16
14
13
11
10

Feels Like (°C)

13
13
8
8
9
8
7
7
5
5
5
5
5
5
10
10
10
11
11
11
11
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

58
63
66
70
74
78
79
82
82
81
82
75
71
65
61
59
56
57
59
59
66
72
81
84

Pressure (mb)

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

Ozone (du)

374
373
374
375
377
378
379
381
382
382
383
383
384
384
383
383
382
383
385
386
388
389
391
394

Sunday 3

Waning Gibbous 95%

00:59

04:53

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

Sun - Rise: 05:09, Set: 21:26, Transit: 13:19. Moon - Rise: 00:59, Set: 04:53. Civil Dark: 22:21 - 04:13. Nautical Dark: 23:52 - 02:39. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

68
47
37
25
23
21
17
31
45
57
70
84
98
78
58
40
26
13
0

Low Clouds (% Sky Obscured)

68
47
32
16
16
13
11
19
19
28
36
51
63
43
23
3
15
13
0

Medium Clouds (% Sky Obscured)

57
40
21
0
0
0
0
0
1
4
9
28
60
52
44
28
20
11
0

High Clouds (% Sky Obscured)

35
21
13
9
7
4
0
0
0
0
0
1
1
2
3
4
2
1
0

ISS Passover

Visibility (miles)

9
9
9
9
8
8
8
7
7
7
7
8
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 (%)

37
31
23
4
3
1
0
0
0
0
0
0
0
1
1
0
9
13
16

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)

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

Chance of Frost

Temperature (°C)

9
8
8
7
6
6
7
7
7
7
7
8
10
11
13
15
16
17
17

Feels Like (°C)

9
8
4
5
5
5
5
5
5
5
5
4
5
5
11
12
12
13
14

Dew Point (°C)

8
7
7
6
6
6
6
6
6
7
6
6
7
7
7
7
6
6
6

Relative Humidity (%)

88
93
93
94
98
96
98
96
96
98
96
87
81
73
64
57
50
50
49

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014

Ozone (du)

397
400
399
397
396
395
394
393
392
391
390
391
391
392
391
390
390
391
391

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

Generated: 27/04/26 20:04:27. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+3.00