Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 1%

03:17

21:24

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

Sun - Rise: 05:15, Set: 21:30, Transit: 13:22. Moon - Rise: 03:17, Set: 21:24. Civil Dark: 22:15 - 04:30. Nautical Dark: 23:21 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

12
2
1
2
2
2
2
0
2
2
0
0
0
0
0
2
27
30
30
30
30
30
30
31

Low 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

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
1

High Clouds (% Sky Obscured)

4
2
1
2
2
2
2
0
2
2
0
0
0
0
0
2
27
30
30
30
30
30
30
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
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)

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

Chance of Frost

Temperature (°C)

19
18
17
17
16
15
16
17
18
20
21
23
24
26
26
27
27
27
26
25
23
22
20
19

Feels Like (°C)

15
15
14
15
14
14
14
15
15
16
19
20
22
23
24
24
25
25
24
21
19
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

55
56
58
62
64
65
63
57
51
44
41
38
37
36
34
33
32
35
37
43
44
45
51
58

Pressure (mb)

1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1020
1020
1019
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

324
323
322
321
321
323
325
325
327
328
330
332
333
335
334
331
332
330
330
329
330
332
330
328

Tuesday 14

New Moon 0%

04:41

22:00

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

Sun - Rise: 05:16, Set: 21:29, Transit: 13:22. Moon - Rise: 04:41, Set: 22:00. Civil Dark: 22:13 - 04:31. Nautical Dark: 23:19 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

80
46
6
40
21
52
54
3
5
2
0
0
2
16
25
10
21
16
17
59
63
67
14
84

Low Clouds (% Sky Obscured)

0
0
0
13
18
18
13
3
5
0
0
0
0
0
0
5
18
14
13
14
3
0
0
0

Medium Clouds (% Sky Obscured)

1
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
0
0
5
5

High Clouds (% Sky Obscured)

80
46
5
22
3
27
35
1
1
1
0
0
2
16
25
9
7
2
2
59
62
67
7
77

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)

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

Chance of Frost

Temperature (°C)

18
17
16
15
14
14
16
18
20
22
23
24
26
27
27
28
28
28
28
27
25
24
23
22

Feels Like (°C)

15
15
14
13
12
13
15
18
20
21
22
23
24
25
26
27
27
28
28
27
24
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

66
73
75
78
82
84
79
72
65
54
47
43
37
34
33
34
35
38
42
45
46
44
49
55

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1019
1018
1018
1018
1019
1019
1020

Ozone (du)

325
325
326
326
327
329
327
328
327
327
327
328
326
326
326
326
327
328
329
328
328
329
330
330

Wednesday 15

Waxing Crescent 2%

06:14

22:25

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
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:17, Set: 21:28, Transit: 13:22. Moon - Rise: 06:14, Set: 22:25. Civil Dark: 22:12 - 04:32. Nautical Dark: 23:17 - 03:28. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

65
96
89
94
99
100
100
100
100
100
100
100
100
100
77
96
57
93
94
47
42
47
78
62

Low Clouds (% Sky Obscured)

0
0
0
0
1
2
14
4
18
5
2
2
2
2
24
41
10
56
44
12
1
10
19
28

Medium Clouds (% Sky Obscured)

19
26
22
16
43
45
45
45
45
65
76
89
85
82
74
71
37
66
77
36
39
43
48
59

High Clouds (% Sky Obscured)

41
90
77
86
99
100
100
100
100
100
100
100
100
100
77
93
9
27
20
24
8
26
66
57

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
8
8
8
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
0
0
0
0
2
4
7
2
0
5
35
40
29
18
38
15
23
25
27
29
41
47
23

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

Chance of Frost

Temperature (°C)

21
20
19
18
17
17
18
19
20
21
23
24
25
25
25
25
24
23
22
22
21
20
19
19

Feels Like (°C)

19
19
19
17
16
16
17
18
20
21
22
24
24
24
25
24
24
23
22
23
22
20
19
19

Dew Point (°C)

13
14
13
14
14
14
14
14
14
15
16
16
16
17
16
17
19
19
18
18
18
18
17
17

Relative Humidity (%)

60
65
68
76
81
82
77
71
69
67
63
60
58
60
58
62
71
78
78
76
82
88
89
86

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

331
331
331
332
333
333
333
332
333
333
333
333
334
335
338
342
344
346
346
342
341
340
339
339

Thursday 16

Waxing Crescent 7%

07:47

22:42

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
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:18, Set: 21:27, Transit: 13:22. Moon - Rise: 07:47, Set: 22:42. Civil Dark: 22:11 - 04:34. Nautical Dark: 23:15 - 03:30. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

73
100
100
96
92
87
90
71
64
71
67
67
68
61
56
45
41
72
80
82
81
94
100
97

Low Clouds (% Sky Obscured)

20
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

59
88
57
85
89
43
44
53
50
51
44
44
40
31
23
25
30
35
44
53
61
57
53
44

High Clouds (% Sky Obscured)

60
100
100
91
83
74
55
20
0
4
8
11
26
38
47
29
15
49
67
70
71
88
99
94

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

19
29
14
16
47
67
50
14
2
12
29
51
22
30
12
14
18
3
7
12
2
0
1
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
18
18
18
18
19
21
22
24
24
25
26
26
26
25
25
24
24
23
21
21
20

Feels Like (°C)

19
18
18
17
17
18
18
20
21
25
26
26
26
26
27
27
26
27
26
23
22
22
20
20

Dew Point (°C)

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

Relative Humidity (%)

85
85
88
89
88
90
89
85
79
68
59
60
62
60
61
61
65
65
67
70
69
81
84
86

Pressure (mb)

1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1017
1017
1017
1017
1017

Ozone (du)

338
336
336
336
337
339
339
340
340
342
342
340
340
340
340
338
335
331
331
334
333
333
336
337

Friday 17

Waxing Crescent 14%

09:14

22:56

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
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:19, Set: 21:25, Transit: 13:22. Moon - Rise: 09:14, Set: 22:56. Civil Dark: 22:10 - 04:35. Nautical Dark: 23:13 - 03:32. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
79
89
99
100
100
99
98
98
98
95
100
95
89
84
83
82
83
87
89
91
85
78
74

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
3
4
2
2
1
1
2
4
15
29
38
29
20
11
11
9
9

Medium Clouds (% Sky Obscured)

35
29
22
13
7
0
7
13
20
16
11
6
12
16
21
33
47
61
64
67
70
56
37
20

High Clouds (% Sky Obscured)

97
77
86
98
99
100
98
96
94
96
93
100
89
78
67
63
60
57
58
65
71
63
56
48

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
1
1
1
1
1
2
2
0
0
1
28
54
71
83
79
75
71
63
46
21
24
20
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.8
0.7
0.6
0.5
0.5
0.2
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
19
18
18
17
18
19
21
22
24
25
25
25
25
25
25
25
25
24
23
21
21
20

Feels Like (°C)

21
21
20
19
18
17
18
20
21
23
24
25
25
25
25
26
26
26
26
25
25
24
23
23

Dew Point (°C)

18
18
17
17
16
16
16
16
16
17
17
17
18
19
19
20
20
21
21
20
20
20
19
18

Relative Humidity (%)

88
89
92
92
92
92
88
81
74
69
64
63
66
68
70
73
76
77
79
82
87
89
88
86

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

337
337
339
338
339
339
340
340
339
339
338
338
337
336
334
332
332
332
333
331
330
328
329
329

Saturday 18

Waxing Crescent 23%

10:37

23:08

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

Sun - Rise: 05:21, Set: 21:24, Transit: 13:22. Moon - Rise: 10:37, Set: 23:08. Civil Dark: 22:08 - 04:37. Nautical Dark: 23:11 - 03:34. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

70
63
76
61
52
50
48
48
51
50
39
35
43
53
59
59
58
58
60
61
60
38
13
0

Low Clouds (% Sky Obscured)

5
2
1
1
3
5
11
17
22
14
7
0
0
1
1
2
3
4
20
33
40
24
8
0

Medium Clouds (% Sky Obscured)

13
9
4
4
4
4
8
12
16
19
23
25
34
44
54
41
28
16
14
12
11
7
5
0

High Clouds (% Sky Obscured)

33
19
4
23
39
43
29
15
4
6
8
10
22
35
48
55
58
58
27
9
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
3
2
3
3
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)

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

Chance of Frost

Temperature (°C)

19
18
17
15
16
16
16
18
20
22
23
25
26
27
27
27
27
27
27
25
23
21
20
19

Feels Like (°C)

22
18
17
16
16
15
15
17
17
19
20
21
22
27
27
27
27
27
27
26
24
22
21
21

Dew Point (°C)

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

Relative Humidity (%)

85
85
85
85
85
82
82
76
68
63
57
52
48
49
50
51
52
55
56
62
67
74
71
69

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

330
331
332
334
332
331
330
329
327
326
326
325
325
324
324
323
324
324
325
325
326
327
327
326

Sunday 19

Waxing Crescent 33%

11:55

23:20

Sun - Rise: 05:22, Set: 21:23, Transit: 13:23. Moon - Rise: 11:55, Set: 23:20. Civil Dark: 22:07 - 04:38. Nautical Dark: 23:09 - 03:36. 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: 13/07/26 01:08:33. Forecast: 13/07/26 to 19/07/26. Timezone: UTC+1.00