Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waxing Crescent 30%

No Rise

02:50

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 OK
01 OK
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 04:26, Set: 22:09, Transit: 13:19. Moon - Rise: No Rise, Set: 02:50. Civil Dark: 23:20 - 03:14. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

90
92
92
99
97
98
100
100
100
100
99
97
100
100
98
39
42
38
33
79
87
93
99
100

Low Clouds (% Sky Obscured)

7
3
2
11
22
32
19
2
4
3
2
2
1
2
2
2
12
22
24
25
39
22
36
54

Medium Clouds (% Sky Obscured)

88
85
72
93
95
97
100
100
100
100
95
97
100
100
96
39
14
25
30
54
78
90
98
100

High Clouds (% Sky Obscured)

29
16
51
88
63
78
100
100
100
100
90
54
99
100
98
39
42
21
6
16
9
5
23
15

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 (%)

58
40
70
0
0
1
8
17
25
23
11
4
0
0
1
2
1
0
1
3
5
8
16
36

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

Chance of Frost

Temperature (°C)

15
17
18
19
19
19
18
18
16
15
14
12
12
12
11
10
10
9
9
8
8
9
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
48
42
41
43
44
49
49
52
58
64
71
71
79
83
85
87
85
84
85
85
82
74
73

Pressure (mb)

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

Ozone (du)

353
351
349
347
348
348
350
351
351
352
351
351
350
351
354
355
355
357
363
365
370
371
371
371

Friday 22

Waxing Crescent 42%

10:31

02:52

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

Sun - Rise: 04:24, Set: 22:11, Transit: 13:19. Moon - Rise: 10:31, Set: 02:52. Civil Dark: 23:24 - 03:11. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
98
100
83
75
45
55
43
42
51
66
57
56
58
75
57
78
27

Low Clouds (% Sky Obscured)

62
66
70
58
63
58
64
58
66
44
41
35
45
40
42
50
54
57
56
58
75
57
74
24

Medium Clouds (% Sky Obscured)

100
100
100
100
97
95
94
94
97
62
53
22
17
5
5
6
28
0
0
0
1
0
0
0

High Clouds (% Sky Obscured)

20
90
100
100
85
46
15
46
100
13
9
1
1
0
0
0
0
0
3
8
16
2
12
4

ISS Passover

Visibility (miles)

9
7
9
8
6
9
9
9
9
9
9
9
9
9
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
52
68
43
0
0
1
1
3
0
0

Precipitation Type

Very Light Rain
Light Rain
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

Precipitation Probability (%)

59
77
78
80
70
51
39
30
11
5
5
4
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.6
0.5
0.5
0.3
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
5
5
6
6
7
7
6
6
7
6
7
6
6
6
6
6
6
7
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
86
88
91
95
95
95
93
89
79
78
80
82
92
96
96
96
98
96
96
95
88
80
70

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

373
375
376
377
378
378
379
379
377
377
376
370
364
363
366
369
363
359
357
355
355
353
352
352

Saturday 23

First Quarter 53%

12:11

02:52

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

Sun - Rise: 04:22, Set: 22:13, Transit: 13:19. Moon - Rise: 12:11, Set: 02:52. Civil Dark: 23:27 - 03:07. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

29
12
16
63
87
83
3
4
3
87
72
100
100
100
100
96
89
72
65
59
52
68
83
99

Low Clouds (% Sky Obscured)

0
1
10
9
30
24
0
0
0
0
0
35
55
64
68
83
81
72
65
59
52
61
71
81

Medium Clouds (% Sky Obscured)

4
5
4
36
47
46
0
0
0
16
46
63
100
100
98
87
48
15
1
1
1
28
54
86

High Clouds (% Sky Obscured)

24
8
1
3
35
27
3
4
3
65
33
100
100
100
98
10
10
21
4
2
14
35
27
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
9
7
7
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
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
0
0
0
0
0
0
0
0
0
0
0
56
80
95
15
4
5
13
14
9
10

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.9
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
18
20
21
22
22
22
22
21
20
18
15
13
12
11
11
12
12
12
12
12
12
12
13

Feels Like (°C)

15
16
18
19
19
18
19
19
17
16
16
13
11
10
9
9
10
11
10
10
11
10
11
10

Dew Point (°C)

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

Relative Humidity (%)

57
49
41
36
36
36
39
40
43
45
52
68
80
87
87
88
92
96
96
95
95
95
93
90

Pressure (mb)

1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1016
1016
1015
1015
1014
1013
1012
1012
1011
1011
1011
1010

Ozone (du)

352
353
353
350
348
346
347
348
347
347
350
352
352
354
354
353
351
359
365
370
368
363
360
361

Sunday 24

Waxing Gibbous 63%

13:44

02:51

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

Sun - Rise: 04:20, Set: 22:16, Transit: 13:19. Moon - Rise: 13:44, Set: 02:51. Civil Dark: 23:30 - 03:04. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
94
92
94
96
99
79
60
41
27
13
1
5
9
10
19
27
36
52
75
84
71
42
29

Low Clouds (% Sky Obscured)

82
84
85
80
76
71
59
48
35
23
12
0
0
0
0
0
0
0
1
2
4
9
13
19

Medium Clouds (% Sky Obscured)

82
82
78
86
87
91
64
37
11
7
3
0
0
1
1
0
0
3
17
31
50
60
26
14

High Clouds (% Sky Obscured)

3
4
3
3
2
0
0
0
0
0
1
1
5
9
10
19
23
36
43
63
62
42
21
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 (%)

17
24
30
32
33
34
33
25
8
5
1
0
0
0
0
0
0
0
0
0
0
5
11
15

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)

14
14
14
15
16
15
16
16
16
16
14
13
12
11
10
10
10
10
10
9
9
9
9
11

Chance of Frost

Temperature (°C)

12
13
13
13
15
16
17
18
18
18
17
16
15
14
13
12
11
11
10
10
10
10
12
13

Feels Like (°C)

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

Dew Point (°C)

11
11
11
10
8
6
5
5
5
7
7
8
8
7
8
7
8
7
7
7
7
7
7
7

Relative Humidity (%)

93
90
90
82
60
50
43
40
43
49
52
57
62
65
70
72
77
80
81
83
83
80
75
65

Pressure (mb)

1010
1011
1011
1012
1013
1013
1013
1013
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018

Ozone (du)

360
362
363
366
370
373
376
380
378
371
365
359
354
353
351
348
346
344
342
341
340
339
337
335

Monday 25

Waxing Gibbous 73%

15:12

02:51

09 OK
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
04 Bad
05 OK
06 OK
07 OK
08 OK

Sun - Rise: 04:18, Set: 22:18, Transit: 13:19. Moon - Rise: 15:12, Set: 02:51. Civil Dark: 23:34 - 03:01. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

28
52
57
56
50
51
46
46
50
55
66
78
90
93
97
97
96
95
73
51
31
35
36
42

Low Clouds (% Sky Obscured)

13
9
3
15
29
40
37
35
31
21
10
0
84
81
79
81
82
81
64
48
31
32
33
35

Medium Clouds (% Sky Obscured)

17
15
18
13
9
3
7
43
50
55
65
76
87
90
94
86
77
65
47
31
17
13
11
6

High Clouds (% Sky Obscured)

0
5
10
10
15
15
9
1
3
8
10
13
4
4
3
24
45
68
43
21
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
4
4
5
5
7
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

13
9
0
0
0
0
0
0
0
2
32
49
68
71
73
66
61
54
43
25
1
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.3
0.3
0.3
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
16
17
18
19
19
19
18
18
17
16
13
12
10
10
9
9
10
10
9
9
9
10
11

Feels Like (°C)

12
14
14
15
15
15
15
14
15
14
12
11
10
8
8
8
8
8
8
8
9
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

55
47
44
41
40
38
40
43
50
51
55
70
89
90
93
96
96
98
96
96
95
93
87
80

Pressure (mb)

1018
1018
1018
1017
1017
1017
1016
1016
1016
1015
1015
1014
1014
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009

Ozone (du)

336
335
336
337
338
341
343
344
345
346
348
349
352
358
364
371
376
382
388
389
389
390
390
390

Tuesday 26

Waxing Gibbous 82%

16:39

02:50

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 04:17, Set: 22:20, Transit: 13:19. Moon - Rise: 16:39, Set: 02:50. Civil Dark: 23:37 - 02:58. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

45
49
51
55
56
56
66
80
95
95
97
98
98
98
99
93
87
81
87
93
98
95
86
79

Low Clouds (% Sky Obscured)

39
46
37
36
39
42
58
75
91
90
89
88
76
67
58
49
39
23
18
14
11
38
63
79

Medium Clouds (% Sky Obscured)

5
3
0
0
0
0
28
56
79
57
51
47
52
72
94
89
83
78
83
87
91
72
52
32

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
11
16
20
26
23
30
45
60
71
61
50
40
27
17
11

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
1
2
2
2
1
0
8
11
9
19
21
18
15
10
0
3
3
2
12
14
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)

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

Chance of Frost

Temperature (°C)

12
13
14
16
16
16
17
16
15
14
14
14
13
12
11
10
9
8
8
7
7
7
8
9

Feels Like (°C)

8
11
12
11
12
12
12
14
14
14
13
12
12
10
10
10
9
9
9
5
4
4
4
3

Dew Point (°C)

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

Relative Humidity (%)

72
62
52
44
43
40
38
43
47
52
53
54
56
60
65
71
70
71
73
75
79
84
78
73

Pressure (mb)

1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007

Ozone (du)

390
390
391
392
392
392
392
392
392
391
392
392
393
393
393
393
393
394
395
396
397
398
398
399

Wednesday 27

Waxing Gibbous 89%

18:06

02:50

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

Sun - Rise: 04:15, Set: 22:22, Transit: 13:19. Moon - Rise: 18:06, Set: 02:50. Civil Dark: 23:41 - 02:55. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

71
71
69
77
87
97
95
93
91
92
93
94
86
78
68
65
62
59

Low Clouds (% Sky Obscured)

71
55
36
36
38
45
48
46
49
60
75
88
83
78
68
65
62
59

Medium Clouds (% Sky Obscured)

25
16
8
35
65
95
95
93
91
92
92
91
83
74
65
56
49
41

High Clouds (% Sky Obscured)

5
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
8
7
8
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
23
26
25
23
17
17
15
14
21
28
28
27
24
15
18
16
9

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
6
7
7
8
8
8
9
9
9
9
9
9
6
7
7
7
6

Dew Point (°C)

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

Relative Humidity (%)

69
61
56
51
45
39
34
36
38
40
48
58
72
76
82
87
88
90

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1009
1009
1009
1009

Ozone (du)

400
400
399
398
398
397
396
396
396
397
395
393
391
388
385
382
382
382

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

Generated: 21/05/26 09:20:06. Forecast: 21/05/26 to 27/05/26. Timezone: UTC+3.00