Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 21

Waxing Gibbous 77%

17:32

01:39

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:02, Set: 19:17, Transit: 13:09. Moon - Rise: 17:32, Set: 01:39. Civil Dark: 19:50 - 06:30. Nautical Dark: 20:29 - 05:50. Astro Dark: 21:11 - 05:09

Total Clouds (% Sky Obscured)

96
96
96
91
97
83
79
79
84
79
77
78
76
70
73
75
63
64
67
69
75
71
55
61

Low Clouds (% Sky Obscured)

84
88
78
80
94
83
79
79
84
79
77
78
73
68
73
75
63
64
67
69
75
71
55
61

Medium Clouds (% Sky Obscured)

16
11
7
4
2
2
1
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
2
0
0
0
0
0
0
0
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
8
8
8
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
12
16
21
27
23
10

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
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)

4
4
3
3
4
5
5
5
5
6
6
5
5
4
3
2
2
1
2
2
2
2
3
2

Chance of Frost

Temperature (°C)

12
12
14
16
17
18
19
19
19
19
19
19
18
17
17
16
16
16
15
15
15
15
14
14

Feels Like (°C)

10
11
13
15
17
18
19
20
19
19
19
20
20
19
19
19
19
18
18
18
17
17
17
16

Dew Point (°C)

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

Relative Humidity (%)

71
72
75
77
77
78
81
85
85
85
85
86
92
90
90
90
92
90
90
90
90
90
90
90

Pressure (mb)

1032
1032
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030

Ozone (du)

271
271
270
270
271
271
271
272
272
272
271
270
271
270
270
270
272
272
273
274
273
272
273
274

Tuesday 22

Waxing Gibbous 85%

17:52

02:55

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:03, Set: 19:14, Transit: 13:09. Moon - Rise: 17:52, Set: 02:55. Civil Dark: 19:48 - 06:32. Nautical Dark: 20:27 - 05:52. Astro Dark: 21:08 - 05:11

Total Clouds (% Sky Obscured)

66
73
66
66
65
56
56
65
68
65
68
87
87
89
77
84
85
86
100
99
96
94
88
75

Low Clouds (% Sky Obscured)

66
73
66
66
65
56
56
60
54
46
52
69
62
61
67
74
79
78
83
76
83
83
73
60

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
6
5
6
3
3
2
3
3
29
75

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
10
3
20
20
20
20
20
3
9
97
96
49
16
10
17

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

7
2
1
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
1
1
1
0
1
3
2
3
4
5
2
6
9
9
10
9
11
10
14
11
8
33
17

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

Chance of Frost

Temperature (°C)

14
15
16
18
19
20
20
20
20
19
19
19
18
17
16
16
16
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
85
81
76
74
75
75
77
82
85
86
90
90
92
90
90
90
89
89
87
87
87
86

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1029
1029
1028
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1025
1025

Ozone (du)

276
278
278
277
278
279
279
278
278
278
279
280
281
281
283
285
286
286
286
284
284
284
285
284

Wednesday 23

Waxing Gibbous 92%

18:07

04:12

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

Sun - Rise: 07:05, Set: 19:12, Transit: 13:08. Moon - Rise: 18:07, Set: 04:12. Civil Dark: 19:45 - 06:33. Nautical Dark: 20:25 - 05:54. Astro Dark: 21:06 - 05:13

Total Clouds (% Sky Obscured)

53
100
94
49
34
56
70
59
57
31
11
20
17
15
17
42
67
91
93
95
96
77
93
86

Low Clouds (% Sky Obscured)

51
55
47
47
31
53
64
59
57
31
11
20
15
7
0
17
35
52
48
44
38
27
16
4

Medium Clouds (% Sky Obscured)

3
0
2
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
90
8

High Clouds (% Sky Obscured)

15
100
82
0
0
0
0
0
1
0
1
1
3
15
17
42
67
78
82
88
91
59
90
79

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 (%)

4
6
23
11
14
2
5
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)

3
2
4
8
9
10
11
10
11
10
11
9
7
6
5
5
5
6
6
6
6
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
87
86
85
86
83
76
71
70
67
66
68
70
79
84
87
84
78
80
80
81
81
81
84

Pressure (mb)

1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1026
1026
1026
1025
1025
1025
1024
1024
1024
1023

Ozone (du)

285
288
294
302
308
309
307
306
306
308
309
307
304
302
301
301
299
297
296
294
292
291
288
287

Thursday 24

Waxing Gibbous 97%

18:20

05:29

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:06, Set: 19:10, Transit: 13:08. Moon - Rise: 18:20, Set: 05:29. Civil Dark: 19:43 - 06:35. Nautical Dark: 20:22 - 05:56. Astro Dark: 21:03 - 05:15

Total Clouds (% Sky Obscured)

87
80
84
91
93
95
97
98
96
69
90
100
94
88
80
73
60
49
48
53
49
65
77
89

Low Clouds (% Sky Obscured)

14
25
38
27
15
3
3
2
2
1
1
0
11
20
32
34
38
41
47
53
49
65
75
86

Medium Clouds (% Sky Obscured)

8
7
2
2
2
2
2
2
0
0
1
4
5
5
0
0
0
0
0
0
0
2
3
5

High Clouds (% Sky Obscured)

76
53
54
76
84
90
93
96
96
69
89
100
88
77
65
60
39
17
13
15
2
2
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
5
5
12
23
26

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
11
12
12
13
14
15
16
18
17
15
14
13
12
12
12
12
12
12
12
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

87
90
83
76
74
72
71
69
67
64
64
70
77
85
86
89
90
92
92
92
90
90
90
89

Pressure (mb)

1023
1023
1023
1023
1023
1022
1022
1021
1020
1020
1020
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017

Ozone (du)

287
287
286
285
283
283
282
281
280
280
280
280
278
276
276
275
274
275
275
276
276
276
275
276

Friday 25

Waxing Gibbous 99%

18:31

06:48

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 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:08, Set: 19:07, Transit: 13:08. Moon - Rise: 18:31, Set: 06:48. Civil Dark: 19:41 - 06:36. Nautical Dark: 20:20 - 05:57. Astro Dark: 21:00 - 05:17

Total Clouds (% Sky Obscured)

89
88
84
93
89
85
86
83
84
73
63
60
58
53
47
53
64
74
74
72
70
68
68
68

Low Clouds (% Sky Obscured)

69
54
42
33
23
15
14
12
9
2
2
2
2
2
2
8
13
17
34
51
64
63
58
58

Medium Clouds (% Sky Obscured)

5
5
5
5
10
10
8
10
7
11
11
0
0
0
0
6
10
8
10
14
18
42
66
68

High Clouds (% Sky Obscured)

2
4
7
31
52
75
76
77
78
61
45
45
50
50
47
53
64
72
74
72
60
60
60
55

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 (%)

21
17
14
14
10
0
1
0
0
0
0
0
0
0
0
0
1
1
5
11
14
21
27
32

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)

10
9
9
10
11
12
11
10
9
9
7
6
5
5
5
5
6
6
6
5
4
4
2
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
13
14
14
15
16
17
17
17
17
18
18
13
14
14
14
15
15
12
12
12
12
13

Dew Point (°C)

11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
12
12

Relative Humidity (%)

89
87
80
75
67
65
61
60
58
56
62
68
74
78
80
84
84
84
84
84
83
83
86
87

Pressure (mb)

1017
1017
1017
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015

Ozone (du)

277
278
279
279
280
282
284
283
282
281
281
282
282
283
283
284
283
283
283
283
283
283
286
289

Saturday 26

Full Moon 100%

18:43

No Set

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

Sun - Rise: 07:10, Set: 19:05, Transit: 13:07. Moon - Rise: 18:43, Set: No Set. Civil Dark: 19:38 - 06:38. Nautical Dark: 20:17 - 05:59. Astro Dark: 20:58 - 05:19

Total Clouds (% Sky Obscured)

75
82
90
84
72
62
52
37
25
28
33
34
30
27
29
53
65
80
87
91
88
91
86
85

Low Clouds (% Sky Obscured)

60
61
62
53
41
28
18
8
0
9
17
26
18
9
4
9
15
17
23
30
30
29
28
23

Medium Clouds (% Sky Obscured)

64
35
4
3
0
2
2
1
1
0
0
0
0
0
0
0
2
9
17
20
17
14
9
8

High Clouds (% Sky Obscured)

42
30
27
43
46
48
33
26
25
17
8
0
0
1
1
24
53
80
67
33
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
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

29
29
33
28
30
31
26
21
17
22
25
25
20
15
8
9
10
8
20
30
42
55
64
74

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
86
79
74
70
65
62
64
66
68
73
77
80
80
82
82
82
82
80
83
84
86
86
86

Pressure (mb)

1015
1015
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

292
294
296
299
300
301
303
304
304
305
306
307
308
310
312
315
316
317
318
319
320
321
321
322

Sunday 27

Waning Gibbous 98%

18:56

08:09

Sun - Rise: 07:11, Set: 19:03, Transit: 13:07. Moon - Rise: 18:56, Set: 08:09. Civil Dark: 19:36 - 06:40. Nautical Dark: 20:15 - 06:01. Astro Dark: 20:55 - 05:20

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: 21/09/26 06:41:50. Forecast: 21/09/26 to 27/09/26. Timezone: UTC+1.00