Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

New Moon 0%

09:07

17:44

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 OK
04 OK
05 OK
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:54, Set: 18:09, Transit: 13:01. Moon - Rise: 09:07, Set: 17:44. Civil Dark: 18:43 - 07:20. Nautical Dark: 19:22 - 06:41. Astro Dark: 20:01 - 06:02

Total Clouds (% Sky Obscured)

99
94
73
69
83
79
69
79
70
63
53
49
55
57
35
40
34
79
100
86
97
100
97
99

Low Clouds (% Sky Obscured)

65
57
50
67
62
59
55
52
41
24
27
40
50
57
34
36
16
17
31
43
55
64
64
54

Medium Clouds (% Sky Obscured)

23
0
36
35
30
19
20
26
26
28
23
39
35
12
4
2
0
0
55
61
92
94
51
54

High Clouds (% Sky Obscured)

2
4
0
0
3
2
5
63
63
60
40
49
6
0
0
40
34
79
100
27
60
94
80
91

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
5
6
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
2
0
44
43
27
23
35
41
31
21
11
9
7
4
5
7
7
7
9
21
33
36
35

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
15
15
14
14
12
10
8
7
6
5
5
5
5
5
5
5
3
2
1
1
2
3
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
80
80
83
83
80
81
87
88
88
88
88
87
87
87
87
87
85
85
84
84
80
79
75

Pressure (mb)

993
993
993
994
994
994
995
996
996
996
997
997
997
998
998
998
999
999
999
999
999
1000
1000
999

Ozone (du)

284
285
284
284
285
282
282
282
280
280
280
281
284
291
293
295
294
291
292
295
297
294
287
286

Wednesday 22

Waxing Crescent 1%

10:21

17:58

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:56, Set: 18:07, Transit: 13:01. Moon - Rise: 10:21, Set: 17:58. Civil Dark: 18:42 - 07:21. Nautical Dark: 19:20 - 06:42. Astro Dark: 19:59 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
93
79
84
77
88
92
78
98
91

Low Clouds (% Sky Obscured)

63
63
54
46
53
58
67
54
80
91
100
100
98
99
100
90
79
84
77
61
54
55
62
61

Medium Clouds (% Sky Obscured)

42
51
100
100
100
100
100
100
98
100
100
100
100
100
100
89
62
68
62
75
48
28
61
72

High Clouds (% Sky Obscured)

93
100
61
100
100
100
100
100
100
100
100
94
75
0
22
15
77
66
70
65
5
3
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
4
2
2
2
6
9
7
9
9
9
9
9
9
9
6
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
Very Light Rain
None
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
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

41
47
47
50
51
88
95
95
95
95
95
95
95
95
95
91
89
93
76
71
59
45
42
43

Precipitation Amount (mm)

0
0.3
0.3
0.3
0
0.5
1.6
2.1
2.1
1.1
1.3
1.7
1
0.3
0.7
0.5
0.5
0.6
0.3
0.3
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
8
6
6
7
7
8
8
8
8
10
9
10
10
12
13
14
14
20
22
23
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
10
10
10
9
9
9
8
8
7
6
6
5
5
6
6
5
3
3
3
2
1
2
2

Dew Point (°C)

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

Relative Humidity (%)

71
69
70
73
77
77
80
85
93
93
91
90
88
88
85
85
84
85
85
81
81
78
73
68

Pressure (mb)

999
998
997
996
994
993
992
991
989
987
986
984
984
984
983
983
984
984
985
987
988
990
992
994

Ozone (du)

286
288
288
286
286
286
288
290
292
298
303
308
315
319
329
337
335
338
338
340
344
341
338
332

Thursday 23

Waxing Crescent 4%

11:34

18:17

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:57, Set: 18:05, Transit: 13:00. Moon - Rise: 11:34, Set: 18:17. Civil Dark: 18:40 - 07:23. Nautical Dark: 19:19 - 06:44. Astro Dark: 19:57 - 06:05

Total Clouds (% Sky Obscured)

87
78
82
48
55
35
61
100
100
100
71
76
64
67
73
56
23
64
67
62
72
68
64
64

Low Clouds (% Sky Obscured)

61
53
72
42
38
17
33
55
66
60
59
59
39
47
61
45
20
36
42
41
46
42
39
39

Medium Clouds (% Sky Obscured)

69
71
32
28
38
24
52
100
100
100
36
45
64
53
0
0
0
20
17
17
15
11
5
0

High 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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
6
6
5
6
7
7
7
8
9
9
9
8
9
7
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
Very Light Rain
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

41
43
57
47
21
16
42
70
82
83
74
78
65
52
46
44
41
38
36
38
34
36
36
44

Precipitation Amount (mm)

0
0
0.3
0
0
0
0
0.4
0.6
0.5
0.4
0.5
0.3
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

23
23
22
22
20
17
14
12
13
12
11
13
14
14
16
17
18
19
20
21
22
23
23
24

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
4
3
3
3
3
3
4
3
3
3
3
3
2
2
2
3
2
2
2
3
4
3
3

Dew Point (°C)

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

Relative Humidity (%)

66
67
67
66
64
63
63
65
69
71
71
74
71
71
70
71
73
71
70
68
68
69
68
67

Pressure (mb)

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

Ozone (du)

330
330
328
326
316
304
300
296
296
299
299
296
293
292
291
292
292
291
291
292
292
293
293
294

Friday 24

Waxing Crescent 9%

12:41

18:42

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:59, Set: 18:03, Transit: 13:00. Moon - Rise: 12:41, Set: 18:42. Civil Dark: 18:38 - 07:25. Nautical Dark: 19:17 - 06:45. Astro Dark: 19:55 - 06:07

Total Clouds (% Sky Obscured)

69
79
87
87
87
88
86
84
24
24
30
87
91
94
82
88
100
100
93
84
74
78
81
75

Low Clouds (% Sky Obscured)

44
49
59
59
59
61
62
62
24
24
30
56
68
77
80
75
72
65
62
58
54
55
59
58

Medium Clouds (% Sky Obscured)

9
20
24
27
24
24
20
14
2
5
10
65
77
45
43
43
39
83
34
63
18
22
28
30

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
2
2
4
5
2
40
20
20
35
40
30
19
2

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

52
52
52
60
75
84
88
83
62
58
52
47
64
57
49
58
60
56
50
42
33
34
35
38

Precipitation Amount (mm)

0.2
0.2
0.2
0.3
0.5
0.6
0.7
0.5
0
0.2
0
0
0.4
0.2
0
0.3
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

25
25
24
25
23
21
18
14
11
11
11
12
13
14
15
17
18
18
19
19
19
19
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
76
75
77
81
84
85
87
87
81
85
91
84
84
81
81
82
82
81
80
74
73
73

Pressure (mb)

1001
1001
1000
1000
1000
1000
1000
1000
1000
1001
1002
1002
1003
1003
1004
1004
1005
1006
1006
1007
1008
1009
1009
1010

Ozone (du)

295
296
296
295
295
296
298
298
299
297
296
295
294
295
295
294
295
296
296
296
299
301
301
300

Saturday 25

Waxing Crescent 15%

No Rise

19:18

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:01, Set: 18:01, Transit: 13:00. Moon - Rise: No Rise, Set: 19:18. Civil Dark: 18:36 - 06:26. Nautical Dark: 19:15 - 05:47. Astro Dark: 19:54 - 05:08

Total Clouds (% Sky Obscured)

82
76
69
47
66
66
62
66
58
70
82
91
90
89
89
88
87
82
73
65
69
74
78
78

Low Clouds (% Sky Obscured)

60
56
55
37
38
35
35
35
34
49
63
76
69
68
59
48
43
45
47
49
52
56
59
58

Medium Clouds (% Sky Obscured)

20
12
0
7
15
21
25
26
25
26
25
22
15
10
33
63
87
68
41
17
15
18
32
22

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
7
9
9
9
9
9
9
7
7
9
7
6
5
6
8
9
9
9
8
8
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
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

41
45
46
43
41
35
37
36
36
63
78
85
92
71
72
70
69
67
55
36
40
42
44
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
3
3
3
2
1
2
2
2
2
1
2
2
2
2
2
2
2
3
2
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

73
71
74
72
74
73
73
73
74
74
75
74
77
78
79
78
78
78
77
77
75
74
74
73

Pressure (mb)

1010
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1011
1011
1011
1012
1012
1013
1013
1014
1015
1015
1016
1016

Ozone (du)

301
302
304
305
299
292
297
299
299
296
295
297
301
304
307
305
303
302
299
297
294
294
294
294

Sunday 26

Waxing Crescent 22%

12:40

19:06

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:03, Set: 16:59, Transit: 12:00. Moon - Rise: 12:40, Set: 19:06. Civil Dark: 17:34 - 06:28. Nautical Dark: 18:13 - 05:49. Astro Dark: 18:52 - 05:10

Total Clouds (% Sky Obscured)

79
83
85
85
86
89
93
96
95
96
98
98
99
100
98
97
95
93
91
89
86
83
81
84

Low Clouds (% Sky Obscured)

58
59
55
46
40
44
45
44
57
72
95
97
99
100
95
91
87
87
88
89
86
83
81
82

Medium Clouds (% Sky Obscured)

14
4
18
32
47
61
73
85
87
88
88
91
94
97
81
70
60
59
57
51
52
53
46
51

High Clouds (% Sky Obscured)

0
0
16
32
47
40
32
24
33
46
62
42
21
3
4
4
10
10
9
4
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
5
5
6
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

42
41
36
29
18
18
18
18
17
16
13
37
53
68
80
87
90
78
65
51
42
36
30
34

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.5
0.6
0.4
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

17
17
17
14
12
9
9
9
10
9
9
9
10
11
13
13
14
16
16
16
16
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
73
73
70
69
67
69
70
73
77
78
82
85
90
93
93
93
92
93
92
92
90
90
89

Pressure (mb)

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

Ozone (du)

292
289
286
285
283
282
281
280
279
278
276
275
274
272
271
272
272
272
273
273
274
274
274
274

Monday 27

Waxing Crescent 31%

13:25

20:09

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

Sun - Rise: 07:04, Set: 16:57, Transit: 12:00. Moon - Rise: 13:25, Set: 20:09. Civil Dark: 17:32 - 06:30. Nautical Dark: 18:11 - 05:50. Astro Dark: 18:50 - 05:12

Total Clouds (% Sky Obscured)

89
93
74
56
37
55
73
90
92
95
97
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

84
85
71
56
37
55
70
84
88
91
94
96
98
100
96
91
86

Medium Clouds (% Sky Obscured)

55
68
47
25
2
5
9
13
23
36
45
47
41
33
31
26
23

High Clouds (% Sky Obscured)

0
4
5
8
8
7
5
3
20
34
34
19
10
6
29
54
75

ISS Passover

Visibility (miles)

9
9
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

38
40
38
34
30
26
23
19
24
28
30
30
30
31
32
31
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
89
89
86
81
79
80
81
83
81
80
80
79
77

Pressure (mb)

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

Ozone (du)

273
272
272
270
269
267
267
266
265
265
265
264
263
263
262
262
263

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

Generated: 21/10/25 13:50:32. Forecast: 21/10/25 to 27/10/25. Timezone: UTC+1.00