Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 24

Waxing Crescent 19%

11:20

20:48

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

Sun - Rise: 08:23, Set: 16:05, Transit: 12:14. Moon - Rise: 11:20, Set: 20:48. Civil Dark: 16:46 - 07:42. Nautical Dark: 17:30 - 06:58. Astro Dark: 18:12 - 06:16

Total Clouds (% Sky Obscured)

80
85
57
29
44
55
64
1
36
55
43
52
56
61
67
79
79
78
72
51
41
40
17
29

Low Clouds (% Sky Obscured)

45
43
34
29
44
55
64
0
36
55
43
52
56
61
67
79
79
77
72
51
40
39
17
29

Medium Clouds (% Sky Obscured)

44
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)

80
76
0
0
0
3
0
1
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
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)

17
17
17
17
16
14
14
13
13
13
13
14
13
13
13
14
15
16
17
18
19
20
22
23

Chance of Frost

Temperature (°C)

2
2
2
2
1
1
1
1
2
2
2
2
2
1
1
1
1
1
2
2
1
1
2
2

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-2
-1
-1
-1
-1
-1
-2
-2
-3
-2
-1
-1
-1
-1
-1
-1
0
-1
-1
-1
-2

Relative Humidity (%)

80
76
76
78
84
86
89
88
84
78
76
73
77
86
88
86
89
86
84
89
88
88
83
77

Pressure (mb)

1035
1035
1035
1035
1035
1036
1036
1036
1036
1036
1036
1036
1036
1035
1035
1035
1034
1033
1033
1033
1033
1032
1032
1031

Ozone (du)

324
328
330
329
331
332
329
326
326
327
329
329
330
332
335
336
337
338
341
342
341
343
344
344

Thursday 25

Waxing Crescent 28%

11:31

22:07

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

Sun - Rise: 08:23, Set: 16:06, Transit: 12:14. Moon - Rise: 11:31, Set: 22:07. Civil Dark: 16:47 - 07:42. Nautical Dark: 17:31 - 06:58. Astro Dark: 18:12 - 06:16

Total Clouds (% Sky Obscured)

31
36
14
0
0
23
23
28
22
1
1
1
25
1
17
19
51
54
55
54
32
27
31
35

Low Clouds (% Sky Obscured)

31
36
14
0
0
23
23
28
22
0
0
0
0
0
17
19
49
51
50
49
31
27
31
35

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
18
0
0
0
0
0
0
0
0
0
0
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
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)

23
23
22
21
20
19
18
17
17
16
16
16
16
15
14
13
13
12
12
12
12
12
13
14

Chance of Frost

Temperature (°C)

3
3
3
2
2
1
1
1
0
1
1
0
0
0
0
0
0
1
1
1
0
1
1
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
77
77
77
77
77
75
75
75
78
78
78
78
80
80
80
81
81
81
83
83
81
77
74

Pressure (mb)

1030
1030
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031

Ozone (du)

344
345
346
346
345
344
344
344
346
348
351
356
357
353
350
347
345
346
345
346
347
347
348
347

Friday 26

Waxing Crescent 39%

11:42

23:27

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

Sun - Rise: 08:23, Set: 16:06, Transit: 12:15. Moon - Rise: 11:42, Set: 23:27. Civil Dark: 16:48 - 07:42. Nautical Dark: 17:32 - 06:58. Astro Dark: 18:13 - 06:17

Total Clouds (% Sky Obscured)

35
28
44
52
45
41
43
47
43
45
68
78
60
38
38
28
36
50
88
92
97
97
97
97

Low Clouds (% Sky Obscured)

35
28
44
52
45
41
43
47
43
45
57
49
44
38
38
28
36
50
70
80
89
88
86
86

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
26
26
3
3
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
2
3
3
3
9
6
4
34
44
16
3
0
0
0
0
11
23
34
43
53
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
5
9
9
9
5
2
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-1
-1
-1
-2
-1
-1
-2
-2
-2
-2
-3
-3
-3
-3
-2
-1
-2
-2
-3
-3
-3
-2
-2

Dew Point (°C)

-2
-1
-1
0
1
1
1
1
0
1
0
0
1
0
1
1
1
1
2
2
2
2
2
3

Relative Humidity (%)

72
73
75
79
85
89
88
89
88
89
88
89
93
93
93
93
93
96
96
93
88
86
86
88

Pressure (mb)

1031
1030
1031
1031
1031
1032
1032
1033
1034
1034
1034
1035
1035
1035
1036
1036
1036
1036
1036
1037
1037
1037
1037
1037

Ozone (du)

345
345
344
341
339
336
333
331
327
324
322
320
319
316
314
311
307
306
304
304
303
303
303
302

Saturday 27

First Quarter 50%

11:53

00:48

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:23, Set: 16:07, Transit: 12:15. Moon - Rise: 11:53, Set: 00:48. Civil Dark: 16:48 - 07:42. Nautical Dark: 17:32 - 06:58. Astro Dark: 18:14 - 06:17

Total Clouds (% Sky Obscured)

94
90
89
92
93
96
96
96
96
29
48
61
74
82
88
82
76
59
64
67
60
58
63
66

Low Clouds (% Sky Obscured)

83
81
79
79
78
78
75
74
73
29
48
61
74
80
84
76
68
59
61
61
60
58
63
65

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)

57
27
1
1
1
2
2
2
2
0
3
1
2
5
4
2
3
0
2
2
3
3
3
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
5
5
5
5
5
5
6

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
1
2
2
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-0
0
-0
-1
-1
-1
-1
-1
-1
-2
-0
-1
-0
-1
-2
-2
-2
-2
-2
-2
-2
-1
-1
-0

Dew Point (°C)

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

Relative Humidity (%)

90
88
86
82
82
85
85
86
88
86
91
93
94
94
93
89
91
94
96
96
96
96
94
91

Pressure (mb)

1037
1037
1037
1036
1037
1037
1037
1037
1038
1038
1038
1038
1038
1038
1038
1038
1038
1037
1038
1038
1038
1038
1038
1038

Ozone (du)

301
300
299
298
297
297
295
294
294
294
295
296
296
296
295
295
294
294
293
293
292
292
292
292

Sunday 28

Waxing Gibbous 61%

12:07

02:13

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

Sun - Rise: 08:23, Set: 16:08, Transit: 12:16. Moon - Rise: 12:07, Set: 02:13. Civil Dark: 16:49 - 07:42. Nautical Dark: 17:33 - 06:58. Astro Dark: 18:15 - 06:17

Total Clouds (% Sky Obscured)

71
79
93
93
93
91
91
88
61
47
47
59
60
61
45
38
35
16
10
29
49
53
44
42

Low Clouds (% Sky Obscured)

71
76
82
82
82
82
81
80
61
47
47
59
60
61
45
38
35
16
10
29
49
53
44
42

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)

3
4
3
5
7
11
17
21
25
24
22
19
25
17
16
19
20
16
10
17
0
20
42
42

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
0
-1
-1
-2
-2
-2
-2
-1
0
0
1
1
1
1
0
0
0
0
0
0
1
0
-1

Dew Point (°C)

2
2
2
1
1
1
0
0
1
1
1
1
1
0
0
-0
-1
-1
-1
-1
-1
-1
-1
-2

Relative Humidity (%)

88
86
86
86
85
82
82
80
85
91
91
93
93
93
93
93
91
91
89
88
86
84
79
72

Pressure (mb)

1037
1037
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1035
1035
1035
1035
1035
1035
1035
1035
1035
1034

Ozone (du)

292
292
293
291
291
292
292
293
294
293
291
291
291
288
286
284
283
282
281
281
281
281
284
287

Monday 29

Waxing Gibbous 72%

12:07

03:44

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

Sun - Rise: 08:23, Set: 16:09, Transit: 12:16. Moon - Rise: 12:07, Set: 03:44. Civil Dark: 16:50 - 07:42. Nautical Dark: 17:34 - 06:59. Astro Dark: 18:15 - 06:17

Total Clouds (% Sky Obscured)

35
37
31
22
24
26
33
39
44
53
50
54
62
68
77
79
78
76
74
68
65
63
61
59

Low Clouds (% Sky Obscured)

35
37
31
22
24
26
33
39
44
53
50
54
62
68
77
79
78
76
74
68
65
63
61
59

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)

35
21
0
18
24
26
33
24
12
8
4
1
1
1
1
1
1
1
2
2
2
2
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
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
1
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
5
5
6
5
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

4
3
3
3
2
2
1
1
1
1
0
0
0
0
0
0
-0
-0
-0
-0
-0
-0
1
2

Feels Like (°C)

-1
4
3
3
4
4
4
0
1
0
-1
-1
-1
-1
0
0
-1
-0
-0
-2
-2
-2
-2
-2

Dew Point (°C)

-2
-2
-1
-1
-1
-1
-2
-1
-1
-2
-2
-1
-1
-1
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1

Relative Humidity (%)

68
71
73
76
77
81
83
84
86
86
88
91
92
94
96
96
96
96
96
96
96
96
88
83

Pressure (mb)

1034
1034
1033
1033
1033
1034
1034
1034
1034
1034
1034
1034
1034
1034
1035
1035
1035
1035
1035
1035
1035
1036
1036
1035

Ozone (du)

290
291
292
293
291
290
288
287
285
284
282
280
278
277
276
275
274
273
272
274
276
278
287
296

Tuesday 30

Waxing Gibbous 82%

12:25

05:17

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

Sun - Rise: 08:23, Set: 16:10, Transit: 12:17. Moon - Rise: 12:25, Set: 05:17. Civil Dark: 16:51 - 07:42. Nautical Dark: 17:35 - 06:59. Astro Dark: 18:16 - 06:17

Total Clouds (% Sky Obscured)

61
70
80
81
82
79
82
86
85
89
94
98
98
98
97
92
87
83

Low Clouds (% Sky Obscured)

61
70
67
57
48
47
29
19
1
19
39
64
71
78
85
79
74
68

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
13
27
40
42
44
51
67
79
88
66
43
19

High Clouds (% Sky Obscured)

0
0
0
0
0
0
13
25
38
59
78
95
67
39
16
10
7
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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
4
8
11
18
21
19

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
2
2
2
2
2
3
3
3
3
4
4
4
5
6
7
6
6

Chance of Frost

Temperature (°C)

3
3
3
3
2
1
1
1
0
-0
0
0
0
1
2
2
3
3

Feels Like (°C)

-3
2
2
3
2
3
2
-1
-1
-1
-1
-1
-1
-2
-2
-3
-3
-2

Dew Point (°C)

-1
-0
0
1
-0
-1
-1
-2
-2
-2
-2
-1
-1
0
1
1
2
2

Relative Humidity (%)

77
79
82
83
85
86
88
86
87
86
89
91
92
93
93
91
93
93

Pressure (mb)

1035
1035
1034
1034
1034
1034
1034
1034
1033
1033
1032
1032
1031
1030
1029
1028
1027
1026

Ozone (du)

306
311
316
321
322
324
325
326
327
328
329
330
331
334
337
341
343
345

Forecast for Rhayader, Powys, United Kingdom (52.27,-3.57)

Generated: 24/12/25 12:12:21. Forecast: 24/12/25 to 30/12/25. Timezone: UTC+0.00