Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 17

Waxing Crescent 5%

05:49

22:55

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

Sun - Rise: 05:19, Set: 21:05, Transit: 13:13. Moon - Rise: 05:49, Set: 22:55. Civil Dark: 21:47 - 04:36. Nautical Dark: 22:46 - 03:37. Astro Dark: 00:21 - 01:57

Total Clouds (% Sky Obscured)

87
90
92
90
100
100
100
100
93
100
100
100
100
100
99
99
94
100
100
99
100
98
100
100

Low Clouds (% Sky Obscured)

60
58
55
68
86
100
86
100
87
73
89
74
69
86
63
72
88
90
90
90
79
93
85
88

Medium Clouds (% Sky Obscured)

80
90
92
90
100
100
100
98
57
95
85
100
100
91
99
94
91
100
100
98
100
97
98
100

High Clouds (% Sky Obscured)

60
60
55
45
0
0
0
0
0
0
0
0
67
69
94
81
33
31
56
88
87
85
100
48

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

77
54
59
77
95
95
95
95
95
95
95
95
94
80
71
61
62
66
60
37
37
36
41
84

Precipitation Amount (mm)

0.6
0.4
0.2
0.5
0.9
0.8
0.9
1.1
0.7
0.9
0.9
0.9
0.9
0.5
0.4
0.3
0.4
0.4
0.4
0
0
0
0
0.5

Wind Speed/Direction (mph)

16
15
15
13
10
10
11
8
7
5
6
4
4
6
7
8
9
11
13
14
13
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
85
87
88
90
90
87
87
88
88
88
90
88
85
83
80
75
75
77
77
76
77
79
79

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009

Ozone (du)

431
430
433
431
425
427
420
410
408
405
401
396
389
388
391
389
389
388
386
384
380
379
379
379

Monday 18

Waxing Crescent 12%

06:55

00:09

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

Sun - Rise: 05:17, Set: 21:07, Transit: 13:13. Moon - Rise: 06:55, Set: 00:09. Civil Dark: 21:49 - 04:35. Nautical Dark: 22:48 - 03:35. Astro Dark: 00:28 - 01:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
89
80
100
99
91
98
97
99
95
80
73
75
75
65
67
79

Low Clouds (% Sky Obscured)

100
88
93
100
100
100
87
100
81
65
81
90
80
84
87
71
61
61
58
56
50
52
55
59

Medium Clouds (% Sky Obscured)

100
100
100
100
100
95
100
100
20
27
47
40
45
95
92
90
86
52
49
45
46
31
29
45

High Clouds (% Sky Obscured)

19
100
98
100
99
100
100
30
5
46
63
72
76
39
30
73
63
0
0
0
32
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
62
40
64
73
83
58
51
51
38
41
39
42
36
26

Precipitation Amount (mm)

0.8
1.1
1.3
1.4
1.4
0.7
1.2
1.5
0.8
0.8
0.2
0
0.5
0.4
0.6
0
0
0.2
0
0
0
0.2
0
0

Wind Speed/Direction (mph)

11
12
13
14
15
15
16
15
16
15
13
13
13
12
14
17
19
20
21
21
22
22
20
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
95
95
95
95
95
96
96
96
96
98
98
96
95
95
90
93
93
92
89
89
87
84
87

Pressure (mb)

1008
1008
1007
1007
1006
1005
1004
1003
1002
1002
1002
1002
1003
1003
1003
1004
1004
1005
1006
1006
1007
1007
1007
1008

Ozone (du)

377
377
378
378
380
384
388
390
396
395
399
397
392
389
390
395
394
393
395
396
397
396
395
396

Tuesday 19

Waxing Crescent 21%

08:17

01:03

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

Sun - Rise: 05:16, Set: 21:08, Transit: 13:13. Moon - Rise: 08:17, Set: 01:03. Civil Dark: 21:51 - 04:33. Nautical Dark: 22:51 - 03:33. Astro Dark: 00:36 - 01:40

Total Clouds (% Sky Obscured)

85
82
74
90
58
86
96
99
88
96
98
82
91
65
88
65
86
68
96
100
99
99
62
52

Low Clouds (% Sky Obscured)

60
56
56
64
42
68
91
80
73
88
91
62
87
54
70
51
61
68
88
92
85
78
62
52

Medium Clouds (% Sky Obscured)

44
71
47
73
40
60
89
58
22
34
25
15
5
54
45
31
65
33
38
48
51
37
20
3

High Clouds (% Sky Obscured)

3
5
1
15
0
0
0
60
2
8
42
45
45
45
40
7
4
2
23
28
25
19
6
3

ISS Passover

Visibility (miles)

9
9
9
9
3
2
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

23
36
40
75
86
90
64
35
64
34
28
30
26
11
8
23
10
7
9
7
5
4
5
2

Precipitation Amount (mm)

0
0
0
0.4
0.8
0.8
0.4
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
20
20
20
22
21
18
18
20
18
15
16
16
17
17
17
18
19
19
19
18
16
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
93
93
96
96
100
96
95
96
95
92
93
92
92
95
93
92
89
87
83
84
89
92

Pressure (mb)

1008
1009
1009
1009
1009
1009
1010
1010
1011
1011
1012
1012
1013
1014
1015
1016
1017
1017
1018
1019
1019
1020
1020
1020

Ozone (du)

394
389
386
384
380
377
371
368
363
360
362
360
360
359
356
353
351
350
350
351
351
351
350
351

Wednesday 20

Waxing Crescent 31%

09:45

01:38

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

Sun - Rise: 05:15, Set: 21:10, Transit: 13:13. Moon - Rise: 09:45, Set: 01:38. Civil Dark: 21:53 - 04:31. Nautical Dark: 22:53 - 03:31. Astro Dark: 00:45 - 01:25

Total Clouds (% Sky Obscured)

56
95
80
85
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
76

Low Clouds (% Sky Obscured)

56
55
39
43
50
79
86
93
100
100
100
100
97
94
92
91
90
90
76
50
33
37
39
41

Medium Clouds (% Sky Obscured)

16
67
67
46
93
98
50
96
55
51
48
47
94
42
37
30
22
19
71
77
76
20
56
9

High Clouds (% Sky Obscured)

2
20
3
40
65
75
74
74
78
67
54
41
69
86
96
96
96
94
96
98
100
100
82
76

ISS Passover

Visibility (miles)

9
9
9
9
9
7
9
9
9
9
9
9
4
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
4
1
5
18
15
22
34
41
35
29
28
33
11
6
9
2
1
2
4
1
1
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)

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

Chance of Frost

Temperature (°C)

13
13
13
12
12
12
12
13
13
13
13
13
13
13
14
14
14
15
15
16
17
17
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
95
92
92
93
92
90
92
93
95
96
98
98
96
95
95
93
92
90
85
82
83
83

Pressure (mb)

1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1024
1024
1024
1025
1025
1025
1024
1024
1024
1024
1024

Ozone (du)

351
350
349
346
345
344
343
343
344
343
342
340
339
338
338
339
339
339
339
339
339
338
336
335

Thursday 21

Waxing Crescent 42%

11:13

02:02

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

Sun - Rise: 05:13, Set: 21:11, Transit: 13:13. Moon - Rise: 11:13, Set: 02:02. Civil Dark: 21:54 - 04:30. Nautical Dark: 22:55 - 03:28. Astro Dark: 01:00 - N/A

Total Clouds (% Sky Obscured)

50
68
34
62
76
89
92
96
97
100
75
62
32
48
62
65
66
67
76
85
100
96
92
88

Low Clouds (% Sky Obscured)

26
17
0
22
57
68
56
27
1
20
5
0
20
10
0
1
1
3
8
14
20
13
7
1

Medium Clouds (% Sky Obscured)

8
50
11
17
26
28
35
48
41
31
14
3
4
4
4
8
22
28
31
37
28
23
26
22

High Clouds (% Sky Obscured)

50
30
10
8
9
14
43
71
97
90
75
50
16
34
55
65
66
67
76
85
100
86
70
51

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
3
6
8
6
3

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
1
6
1
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)

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

Chance of Frost

Temperature (°C)

17
17
16
14
14
14
14
14
15
16
15
16
16
16
16
17
17
17
17
17
17
17
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
87
89
89
83
70
66
63
66
68
68
74
81
80
82
83
83
83
85
85
83
85
86
86

Pressure (mb)

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

Ozone (du)

336
339
343
345
348
350
350
351
352
354
354
353
352
350
349
347
348
348
348
347
345
344
343
342

Friday 22

Waxing Crescent 42%

12:36

02:19

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

Sun - Rise: 05:12, Set: 21:12, Transit: 13:13. Moon - Rise: 12:36, Set: 02:19. Civil Dark: 21:56 - 04:29. Nautical Dark: 22:57 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

92
96
100
99
99
99
92
85
75
75
70
71
81
88
99
93
86
80
86
93
99
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
1
1
1
1
1
1
2
3
4
9
11
15
17
23
26
17
8
0
4
5
8

Medium Clouds (% Sky Obscured)

39
55
69
76
82
88
74
60
45
48
50
54
55
57
62
58
54
58
56
52
43
44
39
31

High Clouds (% Sky Obscured)

62
76
92
95
97
99
92
85
75
75
70
71
81
88
94
93
86
80
86
93
99
100
100
100

ISS Passover

Visibility (miles)

1
1
1
1
4
6
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
2
4
2
5
8
15
19
12
9
10
7
4
9
21
24
24
16
2
10
12
12

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

Chance of Frost

Temperature (°C)

15
14
13
13
12
12
13
12
12
12
13
14
14
16
17
18
19
20
21
21
22
22
22
22

Feels Like (°C)

16
14
14
14
14
13
13
13
13
13
12
13
12
15
15
15
16
16
16
23
23
23
23
23

Dew Point (°C)

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

Relative Humidity (%)

87
89
92
92
92
90
87
87
86
87
86
84
83
79
74
71
69
67
65
66
66
66
71
75

Pressure (mb)

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

Ozone (du)

341
340
339
338
338
338
338
338
337
337
337
337
336
336
336
335
336
337
337
337
336
336
336
335

Saturday 23

First Quarter 54%

13:54

02:32

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
09 Bad
10 Bad
11 Bad
12 OK

Sun - Rise: 05:11, Set: 21:14, Transit: 13:13. Moon - Rise: 13:54, Set: 02:32. Civil Dark: 21:57 - 04:27. Nautical Dark: 23:00 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

90
77
70
74
75
77
67
48
30
51
72
94
92
85
83
67
48
25

Low Clouds (% Sky Obscured)

5
3
0
3
8
15
15
18
18
16
22
26
18
10
0
3
6
6

Medium Clouds (% Sky Obscured)

20
14
7
10
12
13
13
13
11
8
4
1
1
1
0
0
1
1

High Clouds (% Sky Obscured)

80
53
20
10
5
4
3
2
1
3
5
12
41
62
80
67
48
25

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
8
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
29
29
37
47
63
58
43
24
20
9
1
1
1
0
11
9
2

Precipitation Amount (mm)

0
0
0
0
0
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
5
5
5
5
6
6
7
7
8
8
8
7
8
7
9

Chance of Frost

Temperature (°C)

22
21
20
19
19
18
18
17
17
17
17
17
18
18
19
20
20
21

Feels Like (°C)

23
22
22
23
22
22
22
18
17
17
17
17
18
18
18
18
18
18

Dew Point (°C)

18
18
17
17
17
17
16
16
16
16
15
15
15
15
16
16
16
16

Relative Humidity (%)

78
81
85
88
89
90
92
92
93
93
90
88
85
82
80
76
76
76

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

335
335
336
336
337
338
340
340
340
340
340
340
340
344
348
352
350
349

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

Generated: 17/05/26 19:49:19. Forecast: 17/05/26 to 23/05/26. Timezone: UTC+1.00