Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 31

Full Moon 99%

22:22

05:02

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
20 Bad

Sun - Rise: 05:03, Set: 21:24, Transit: 13:14. Moon - Rise: 22:22, Set: 05:02. Civil Dark: 22:09 - 04:18. Nautical Dark: 23:17 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

77
80
100
99
98
97
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

26
55
52
67
60
75
84
84
96
92
100
100
100
100
97
91
93
88
91
92
86
76
88
87

Medium Clouds (% Sky Obscured)

19
35
50
40
47
81
46
61
94
96
100
99
100
79
99
99
100
77
72
72
71
100
100
40

High Clouds (% Sky Obscured)

32
80
100
96
67
78
89
100
100
100
98
100
100
100
38
86
100
100
81
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
4
6
4
5
5
4
4
3
4
2
1
0
0
0

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

Precipitation Probability (%)

0
0
0
0
2
5
2
6
9
60
56
84
95
68
69
72
80
62
86
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0
0.4
1.1
0.3
0.3
0.4
0.6
0.3
0.6
1.5
2.2
2.5
1.3
0.5

Wind Speed/Direction (mph)

11
10
8
7
7
7
7
7
10
11
12
12
12
12
13
14
14
14
13
15
15
15
13
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
95
96
96
96
96
96
93
93
92
95
96
98
98
98
98
98
100
98
100
100
98
100

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1016
1015
1015
1015
1014
1014
1013
1013
1013
1012
1011
1010
1010
1009
1009
1008
1007

Ozone (du)

340
335
333
333
332
329
328
326
326
327
332
332
333
337
340
341
341
343
346
348
352
354
356
358

Monday 1

Waning Gibbous 97%

23:17

05:53

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
20 Bad

Sun - Rise: 05:03, Set: 21:25, Transit: 13:14. Moon - Rise: 23:17, Set: 05:53. Civil Dark: 22:10 - 04:17. Nautical Dark: 23:18 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
88
99
98
100
100
100
72
89
76
84
100
82
67
61
32
39
60
58
51
48
64
42
39

Low Clouds (% Sky Obscured)

74
74
97
92
88
59
57
58
78
64
58
65
59
67
61
32
39
53
55
30
32
21
24
36

Medium Clouds (% Sky Obscured)

85
72
58
82
100
67
28
22
25
17
22
25
30
1
3
3
3
28
27
9
32
56
27
13

High Clouds (% Sky Obscured)

100
40
20
20
20
100
100
27
26
22
36
70
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
3
9
9
9
9
6
9
9
9
9
9
8
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
Very Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

64
69
61
38
66
70
73
73
71
44
43
68
62
47
28
21
16
30
25
23
23
21
6
2

Precipitation Amount (mm)

0
0.3
0.3
0
0.2
0.4
0.5
0.4
0.5
0
0
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
14
14
14
13
13
13
13
13
13
13
14
14
14
15
15
16
16
16
16
16
15
15

Feels Like (°C)

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

Dew Point (°C)

14
14
14
14
13
13
13
13
12
13
13
12
12
12
12
13
13
13
12
13
13
13
13
13

Relative Humidity (%)

98
100
98
100
98
98
96
98
96
98
96
95
90
89
86
86
87
82
77
79
82
85
87
90

Pressure (mb)

1007
1007
1006
1006
1005
1004
1004
1004
1003
1004
1004
1004
1004
1004
1005
1005
1005
1005
1006
1006
1007
1007
1007
1008

Ozone (du)

363
369
372
374
376
377
381
384
389
393
394
393
394
396
401
402
401
401
400
401
389
381
377
372

Tuesday 2

Waning Gibbous 93%

23:59

06:56

21 Good
22 OK
23 OK
00 OK
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
20 Bad

Sun - Rise: 05:02, Set: 21:26, Transit: 13:14. Moon - Rise: 23:59, Set: 06:56. Civil Dark: 22:12 - 04:16. Nautical Dark: 23:20 - 03:07. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
16
28
33
41
67
93
94
100
100
100
100
100
100
100
84
79
100
100
100
99
100
98
96

Low Clouds (% Sky Obscured)

0
16
28
33
41
65
78
64
66
84
100
100
100
98
81
69
65
83
63
68
62
64
69
72

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
27
46
65
59
69
59
100
79
100
21
65
100
86
86
71
71
77
82

High Clouds (% Sky Obscured)

0
0
0
1
1
3
41
33
100
100
100
100
100
100
100
46
51
98
100
100
97
96
77
35

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

0
0
0
1
9
2
11
23
40
47
59
56
48
49
70
47
50
68
61
56
70
86
95
71

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0.4
0
0
0.3
0.3
0.2
0.5
0.7
0.7
0.3

Wind Speed/Direction (mph)

10
9
8
6
6
7
8
10
12
14
13
16
18
19
18
22
23
25
25
22
22
21
20
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
95
95
95
93
95
96
89
86
87
93
95
96
98
95
92
90
92
92
90
92
92
93
95

Pressure (mb)

1008
1009
1009
1009
1009
1009
1008
1008
1007
1007
1006
1005
1005
1003
1003
1002
1001
1001
1000
1000
999
999
998
998

Ozone (du)

367
363
359
353
350
347
347
347
346
351
350
351
354
356
357
360
364
366
372
377
385
397
402
399

Wednesday 3

Waning Gibbous 88%

00:30

08:07

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
20 Bad

Sun - Rise: 05:01, Set: 21:27, Transit: 13:15. Moon - Rise: 00:30, Set: 08:07. Civil Dark: 22:13 - 04:15. Nautical Dark: 23:22 - 03:05. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

94
55
55
100
96
92
88
90
92
95
93
92
90
90
89
88
37
35
41
80
53
55
64
80

Low Clouds (% Sky Obscured)

76
55
55
65
63
62
65
65
66
69
63
42
47
53
58
45
37
35
35
26
16
6
24
29

Medium Clouds (% Sky Obscured)

44
38
34
27
26
26
23
26
27
46
33
64
32
71
75
78
32
27
24
71
32
55
64
77

High Clouds (% Sky Obscured)

18
28
53
80
57
27
0
32
35
15
15
15
30
35
4
0
0
0
0
13
26
6
47
78

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

56
49
60
73
74
73
78
70
69
64
62
59
61
62
56
54
62
69
74
66
52
45
50
49

Precipitation Amount (mm)

0.2
0
0.3
0.4
0.4
0.4
0.5
0.4
0.4
0.3
0.3
0.2
0.3
0.2
0
0
0
0.3
0.4
0.3
0
0
0
0

Wind Speed/Direction (mph)

22
20
19
19
20
21
20
21
20
19
19
19
20
20
21
21
22
22
22
23
23
22
20
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
10
10

Relative Humidity (%)

93
89
89
92
92
92
93
93
93
95
92
90
90
89
89
87
86
84
83
84
87
89
92
93

Pressure (mb)

998
997
997
997
997
996
996
996
996
997
997
998
998
999
999
1000
1000
1001
1001
1001
1001
1002
1002
1002

Ozone (du)

396
395
399
399
398
399
398
397
396
395
397
398
396
396
398
398
401
407
414
416
417
413
407
403

Thursday 4

Waning Gibbous 80%

00:53

09:21

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 OK
17 OK
18 OK
19 Bad
20 Bad

Sun - Rise: 05:01, Set: 21:28, Transit: 13:15. Moon - Rise: 00:53, Set: 09:21. Civil Dark: 22:14 - 04:14. Nautical Dark: 23:24 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
96
81
83
88
82
71
47
73
66
65
49
52
53
56
52
40
31
24
21
23
25
39
56

Low Clouds (% Sky Obscured)

34
26
25
27
38
41
44
31
39
39
45
42
49
50
53
52
40
31
24
21
23
25
39
53

Medium Clouds (% Sky Obscured)

73
82
36
42
36
34
29
25
25
20
24
25
24
28
30
28
23
12
6
7
2
0
2
5

High Clouds (% Sky Obscured)

100
74
28
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
2
3
5
6
3
2

ISS Passover

Visibility (miles)

5
5
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

46
38
27
18
29
36
36
36
35
28
33
35
36
40
50
66
82
62
35
24
20
20
26
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
90
88
88
88
87
83
80
78
74
80
75
66
63
61
65
69
69
70
70
71
74
75
77

Pressure (mb)

1002
1003
1004
1005
1006
1006
1007
1007
1008
1008
1009
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1013

Ozone (du)

403
403
400
400
401
402
404
404
405
405
404
404
402
394
395
390
385
381
376
372
370
368
367
366

Friday 5

Waning Gibbous 72%

01:10

10:37

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
20 Bad

Sun - Rise: 05:00, Set: 21:29, Transit: 13:15. Moon - Rise: 01:10, Set: 10:37. Civil Dark: 22:15 - 04:14. Nautical Dark: 23:26 - 03:03. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

72
70
67
64
75
86
97
99
99
100
100
100
100
96
93
96
93
97
96
91
87
88
90
95

Low Clouds (% Sky Obscured)

62
54
45
37
43
50
59
49
36
24
30
35
37
48
60
80
83
90
94
80
65
48
53
55

Medium Clouds (% Sky Obscured)

7
13
19
28
37
49
58
60
67
74
81
86
96
88
82
82
84
82
75
65
41
36
31
31

High Clouds (% Sky Obscured)

1
5
6
6
7
9
15
40
72
100
98
97
95
96
93
96
93
97
95
91
87
88
90
94

ISS Passover

Visibility (miles)

7
6
6
6
6
7
8
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
Very Light Rain
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

37
30
41
46
40
36
33
37
40
44
49
52
53
56
66
81
90
95
95
88
69
45
31
17

Precipitation Amount (mm)

0
0
0
0.3
0
0
0
0
0
0.2
0.2
0.2
0.2
0.3
0.4
0.6
0.6
0.8
0.9
0.5
0.3
0
0
0

Wind Speed/Direction (mph)

10
9
8
8
8
7
7
7
8
9
11
12
12
13
14
15
16
17
17
18
15
14
16
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
84
85
85
85
87
88
88
87
84
84
86
86
87
84
82
82
80
79
79
80
82
84
87

Pressure (mb)

1013
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1011
1012
1012
1013
1013

Ozone (du)

366
365
367
368
370
374
377
381
386
391
396
399
402
405
402
400
397
393
388
384
382
380
378
377

Saturday 6

Waning Gibbous 62%

01:24

11:52

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

Sun - Rise: 05:00, Set: 21:30, Transit: 13:15. Moon - Rise: 01:24, Set: 11:52. Civil Dark: 22:16 - 04:13. Nautical Dark: 23:27 - 03:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

96
87
78
69
80
88
96
97
99
100
100
100
100
100
100
100
92
85
79
89
94
95

Low Clouds (% Sky Obscured)

50
46
48
47
56
61
67
67
72
72
68
63
61
59
59
61
58
52
48
53
53
56

Medium Clouds (% Sky Obscured)

36
28
21
17
29
47
45
40
30
30
31
37
38
47
57
56
41
19
0
5
7
8

High Clouds (% Sky Obscured)

96
67
33
0
31
63
90
93
95
100
100
100
100
85
67
35
25
20
20
15
15
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

Fog (%)

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

Precipitation Probability (%)

1
9
11
7
15
18
20
51
67
76
89
95
95
87
68
46
51
38
19
20
19
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.3
0.5
0.7
0.8
0.5
0.3
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
10
10
10
11
11
11
11
11
10
11
11
11
11
11
11
13
13
12
12
12

Dew Point (°C)

11
11
11
11
11
11
11
11
12
12
12
12
13
13
13
13
13
13
13
13
12
12

Relative Humidity (%)

90
93
93
93
93
95
95
95
95
95
95
93
93
90
90
87
86
85
85
83
83
84

Pressure (mb)

1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019

Ozone (du)

376
376
373
371
369
366
363
360
359
358
357
356
354
352
351
350
349
348
347
346
345
344

Forecast for Llanrhidian, City and County of Swansea, United Kingdom (51.61,-4.17)

Generated: 31/05/26 21:16:19. Forecast: 31/05/26 to 06/06/26. Timezone: UTC+1.00