Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 4

Waxing Gibbous 69%

15:44

01:04

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 05:06, Set: 21:36, Transit: 13:21. Moon - Rise: 15:44, Set: 01:04. Civil Dark: 22:23 - 04:19. Nautical Dark: 23:34 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

54
64
72
100
100
83
96
60
75
60
75
97
73
98
99
100
100
93
93
99
100
100
100
100

Low Clouds (% Sky Obscured)

22
36
42
56
58
60
64
57
44
49
45
51
47
56
66
61
53
50
54
52
36
51
81
100

Medium Clouds (% Sky Obscured)

0
30
3
32
49
38
44
44
40
28
46
45
51
70
95
95
100
47
69
92
91
95
100
89

High Clouds (% Sky Obscured)

54
64
72
100
100
80
94
60
75
60
75
94
73
97
98
100
96
79
82
93
99
100
100
61

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
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
20
37
65
66

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
0.4
0.3

Wind Speed/Direction (mph)

5
4
4
5
6
10
11
13
14
15
16
17
17
18
18
18
17
18
18
17
18
17
17
16

Chance of Frost

Temperature (°C)

14
14
13
13
14
15
16
17
17
17
18
18
18
18
18
17
17
16
16
16
16
16
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
90
86
79
77
76
74
76
76
76
77
78
81
85
86
85
83
82
87
93
95

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1026
1026
1025
1024
1024
1023
1023
1022
1022
1021
1020

Ozone (du)

328
326
326
325
325
325
322
321
320
320
319
318
318
318
317
317
316
314
313
313
313
313
314
313

Saturday 5

Waxing Gibbous 77%

16:57

01:20

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 05:07, Set: 21:35, Transit: 13:21. Moon - Rise: 16:57, Set: 01:20. Civil Dark: 22:22 - 04:20. Nautical Dark: 23:33 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
95
100
98
100
82
99
94
95
89
88
97
100
95
99

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
89
99
97
100
82
91
87
89
87
86
92
94
84
93

Medium Clouds (% Sky Obscured)

100
100
100
100
99
51
91
96
44
34
26
29
44
60
58
35
17
20
0
0
20
50
42
52

High Clouds (% Sky Obscured)

88
100
100
98
94
100
100
99
18
19
10
30
30
100
66
91
25
35
5
0
0
0
0
0

ISS Passover

Visibility (miles)

8
5
4
3
3
4
6
3
4
3
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

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

Precipitation Probability (%)

77
68
52
61
69
53
54
65
52
38
25
28
27
26
28
23
13
20
8
23
28
37
39
15

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
17
16
16
16
16
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
98
98
98
96
98
98
96
96
95
95
93
90
89
89
90
92
93
93
90
81
80

Pressure (mb)

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

Ozone (du)

314
314
315
317
320
326
328
327
326
328
329
333
335
339
340
339
340
341
343
345
346
345
345
344

Sunday 6

Waxing Gibbous 85%

18:11

01:42

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 05:07, Set: 21:35, Transit: 13:21. Moon - Rise: 18:11, Set: 01:42. Civil Dark: 22:21 - 04:21. Nautical Dark: 23:31 - 03:11. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
95
92
94
98
85
90
99
93
97
99
98
97
97
100
100
98
95
93
89
84
81
78
42

Low Clouds (% Sky Obscured)

86
82
67
80
82
66
62
76
66
61
81
65
85
80
83
90
76
59
41
44
47
52
53
42

Medium Clouds (% Sky Obscured)

53
51
48
50
54
25
36
38
23
23
32
37
45
44
50
55
51
46
38
36
29
59
35
8

High Clouds (% Sky Obscured)

0
0
0
0
2
2
2
2
4
42
39
2
0
0
0
0
0
0
0
1
11
20
15
1

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 (%)

20
11
24
15
33
26
25
31
24
23
24
31
28
30
21
30
27
21
30
37
33
29
18
11

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
79
79
79
79
76
74
73
73
72
71
72
72
74
78
80
83
84
84
84
76
78
81

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1011
1011
1012

Ozone (du)

342
344
344
341
342
343
338
339
335
335
339
340
338
341
345
349
352
354
356
357
361
365
364
365

Monday 7

Waxing Gibbous 91%

19:24

02:13

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 OK
16 OK
17 OK
18 Bad
19 OK
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good

Sun - Rise: 05:08, Set: 21:34, Transit: 13:21. Moon - Rise: 19:24, Set: 02:13. Civil Dark: 22:20 - 04:22. Nautical Dark: 23:30 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

70
52
78
81
85
89
91
88
40
42
51
43
23
17
19
49
14
6
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

40
50
67
70
74
79
82
72
40
42
48
43
23
17
19
24
14
6
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

44
5
3
0
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
2
0
0
1
0
0
0
0
0
0
0
0
0
2
13
1
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 (%)

2
11
20
24
11
14
15
13
15
11
4
5
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)

14
15
16
16
16
18
19
19
20
19
20
20
20
20
19
16
14
12
9
7
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
10
11
10
9
9
11
10
10
10
10
9
9
9
10
11
10
10
10
10
9
9
9

Relative Humidity (%)

84
80
84
87
83
74
74
80
73
70
68
64
58
57
59
63
67
69
76
84
88
88
88
90

Pressure (mb)

1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1020
1020
1020

Ozone (du)

364
365
367
368
364
364
365
367
371
372
370
367
364
361
360
358
357
356
353
352
351
351
350
349

Tuesday 8

Waxing Gibbous 96%

20:29

02:58

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

Sun - Rise: 05:09, Set: 21:33, Transit: 13:21. Moon - Rise: 20:29, Set: 02:58. Civil Dark: 22:19 - 04:23. Nautical Dark: 23:28 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
9
19
25
26
29
58
52
62
28
23
19
14
9
10
10
5
3
0
0
1
1
3
6

Low Clouds (% Sky Obscured)

0
9
19
25
26
29
28
31
34
28
23
19
14
9
10
10
5
3
0
0
0
0
3
6

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)

0
0
1
0
0
1
10
8
20
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
93
92
84
74
66
61
59
56
55
55
55
58
60
64
69
75
80
81
83
83
83

Pressure (mb)

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

Ozone (du)

351
352
351
348
344
340
340
339
338
337
339
337
335
333
331
330
328
327
326
325
325
325
324
324

Wednesday 9

Waxing Gibbous 99%

21:22

02:58

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

Sun - Rise: 05:10, Set: 21:33, Transit: 13:22. Moon - Rise: 21:22, Set: 02:58. Civil Dark: 22:18 - 04:25. Nautical Dark: 23:27 - 03:16. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

5
6
9
12
15
15
19
40
54
80
57
38
12
26
38
52
52
54
54
68
83
97
91
83

Low Clouds (% Sky Obscured)

5
6
9
12
15
15
19
40
54
56
41
28
12
26
38
52
52
52
42
46
55
62
65
63

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
21
41
30
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
25
52
78
52
26
0
0
0
0
1
2
2
34
67
97
67
33

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
8
8
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
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
1
0
3
5
3
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)

3
3
3
3
3
2
3
6
7
9
10
10
10
11
9
8
7
6
6
6
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
10
11
11
15
15
16
17
18
18
20
20
19
19
19
18
19
20
20
19
19
19
15

Dew Point (°C)

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

Relative Humidity (%)

84
84
83
81
80
75
71
67
69
72
73
75
77
78
78
78
78
81
82
85
86
89
90
89

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1024
1024
1024
1024
1023

Ozone (du)

324
324
324
325
325
324
322
321
321
320
320
319
319
318
317
316
316
315
315
315
314
313
313
312

Thursday 10

Full Moon 100%

22:02

03:57

Sun - Rise: 05:11, Set: 21:32, Transit: 13:22. Moon - Rise: 22:02, Set: 03:57. Civil Dark: 22:18 - 04:26. Nautical Dark: 23:25 - 03:18. 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 Llanrhidian, City and County of Swansea, United Kingdom (51.61,-4.17)

Generated: 04/07/25 03:03:42. Forecast: 04/07/25 to 10/07/25. Timezone: UTC+1.00