Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 30%

23:44

16:56

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

Sun - Rise: 06:47, Set: 19:23, Transit: 13:04. Moon - Rise: 23:44, Set: 16:56. Civil Dark: 19:56 - 06:13. Nautical Dark: 20:36 - 05:34. Astro Dark: 21:18 - 04:52

Total Clouds (% Sky Obscured)

80
76
78
78
77
75
78
74
69
70
57
40
36
35
36
41
37
43
98
42
69
96
100
100

Low Clouds (% Sky Obscured)

77
66
60
76
69
62
57
59
59
57
55
40
36
35
36
41
37
43
50
41
40
30
35
55

Medium Clouds (% Sky Obscured)

36
32
31
34
31
31
29
29
25
21
5
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
1
1
9
1
3
0
0
2
0
0
0
0
0
0
19
36
65
93
100
100

ISS Passover

Visibility (miles)

9
9
7
6
8
7
9
9
6
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
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

42
55
59
67
60
52
53
61
54
39
15
5
2
1
1
1
2
3
12
1
2
2
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

19
20
20
25
25
26
25
24
24
23
21
20
20
20
19
17
17
16
14
14
14
14
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
79
80
78
76
76
76
80
83
83
82
80
79
78
76
77
79
80
80
79
77
75
68

Pressure (mb)

1004
1005
1005
1005
1006
1006
1006
1006
1007
1008
1008
1009
1010
1011
1012
1013
1013
1014
1014
1015
1015
1016
1016
1017

Ozone (du)

307
307
309
311
312
311
308
308
308
307
305
306
312
309
311
311
306
304
304
302
300
300
301
300

Tuesday 16

Waning Crescent 28%

01:04

17:35

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
07 Bad
08 Bad

Sun - Rise: 06:48, Set: 19:20, Transit: 13:04. Moon - Rise: 01:04, Set: 17:35. Civil Dark: 19:54 - 06:15. Nautical Dark: 20:33 - 05:35. Astro Dark: 21:16 - 04:54

Total Clouds (% Sky Obscured)

95
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

67
61
36
87
53
59
44
49
42
68
72
76
49
57
84
85
71
90
97
95
87
100
100
100

Medium Clouds (% Sky Obscured)

34
36
79
72
44
57
57
53
49
67
75
78
100
92
86
98
89
98
99
100
98
96
94
90

High Clouds (% Sky Obscured)

93
91
87
100
100
99
100
100
99
100
100
100
100
100
84
100
63
26
98
23
49
1
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

0
2
3
5
3
5
14
5
4
8
32
38
52
41
39
49
94
92
95
95
95
89
65
33

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
0.5
0.8
1
0.8
0.5
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
14
15
15
15
15
15
15
14
14
13
13
13
13
13
14
14
14
14
14
14
14
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
64
60
56
55
56
56
59
64
68
73
80
86
87
90
90
89
87
92
96
96
95
95
93

Pressure (mb)

1018
1018
1018
1019
1018
1019
1019
1018
1018
1018
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1014
1014
1013
1013

Ozone (du)

298
295
291
286
284
281
279
276
273
272
270
269
269
266
263
262
259
259
260
260
262
263
264
265

Wednesday 17

Waning Crescent 20%

02:27

18:02

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
07 Bad
08 Bad

Sun - Rise: 06:50, Set: 19:18, Transit: 13:03. Moon - Rise: 02:27, Set: 18:02. Civil Dark: 19:51 - 06:17. Nautical Dark: 20:31 - 05:37. Astro Dark: 21:13 - 04:55

Total Clouds (% Sky Obscured)

100
94
96
84
76
100
100
85
97
65
77
82
75
89
88
72
74
84
71
69
76
76
76
70

Low Clouds (% Sky Obscured)

99
91
93
82
72
75
72
78
71
60
64
52
54
69
62
61
60
68
57
57
63
67
75
70

Medium Clouds (% Sky Obscured)

84
18
31
47
76
96
71
81
21
2
11
15
12
23
20
9
14
20
26
32
28
38
45
42

High Clouds (% Sky Obscured)

0
0
9
0
18
85
80
7
3
5
3
29
11
18
7
13
11
8
6
22
36
56
61
70

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 (%)

18
16
19
21
31
26
24
12
10
6
4
4
1
3
1
0
0
0
0
3
3
3
14
18

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

Chance of Frost

Temperature (°C)

16
16
17
18
19
19
18
17
17
17
16
16
15
15
15
15
15
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
92
92
90
92
92
90
88
85
87
90
92
92
87
87
87
84
86
90
89
89
89
83

Pressure (mb)

1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

265
266
265
265
266
266
268
265
265
264
264
264
263
262
261
261
260
260
262
264
265
266
267
268

Thursday 18

Waning Crescent 12%

03:49

18:20

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
07 Bad
08 Bad

Sun - Rise: 06:52, Set: 19:16, Transit: 13:03. Moon - Rise: 03:49, Set: 18:20. Civil Dark: 19:49 - 06:18. Nautical Dark: 20:29 - 05:39. Astro Dark: 21:10 - 04:57

Total Clouds (% Sky Obscured)

65
82
81
75
66
99
99
99
100
100
100
93
75
75
72
80
81
82
81
86
88
96
90
91

Low Clouds (% Sky Obscured)

65
82
81
75
66
90
78
76
78
85
82
83
75
75
72
70
65
60
51
56
65
74
70
65

Medium Clouds (% Sky Obscured)

44
53
55
57
50
43
37
45
57
63
46
35
22
34
43
45
28
16
4
10
15
19
27
35

High Clouds (% Sky Obscured)

65
74
63
49
56
68
73
54
34
33
65
73
66
61
55
55
69
82
69
59
65
89
78
75

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 (%)

19
16
13
5
28
33
25
28
23
15
12
9
7
7
6
4
6
6
3
3
2
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)

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

Chance of Frost

Temperature (°C)

16
16
17
17
17
18
18
18
18
18
17
17
17
17
16
16
16
16
16
16
16
16
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
77
74
70
64
59
57
62
67
74
82
92
93
95
95
95
95
95
95
95
95
95
95
92

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1018

Ozone (du)

268
267
267
266
265
262
260
257
256
256
255
256
257
258
257
259
259
259
259
259
260
260
261
261

Friday 19

Waning Crescent 6%

05:07

18:34

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
07 Bad
08 Bad

Sun - Rise: 06:53, Set: 19:13, Transit: 13:02. Moon - Rise: 05:07, Set: 18:34. Civil Dark: 19:47 - 06:20. Nautical Dark: 20:26 - 05:41. Astro Dark: 21:08 - 04:59

Total Clouds (% Sky Obscured)

94
92
99
99
87
75
66
69
73
75
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

61
64
67
70
64
54
49
50
50
49
47
35
24
33
38
45
48
50
58
51
42
30
45
60

Medium Clouds (% Sky Obscured)

37
36
26
17
14
9
4
2
2
9
15
13
11
10
9
18
21
18
14
34
55
78
74
70

High Clouds (% Sky Obscured)

79
63
68
70
60
47
16
10
30
45
97
99
100
100
100
100
100
100
100
100
100
100
100
100

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
1
1
14
12
14
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

13
13
14
13
12
12
12
12
10
9
7
6
5
5
5
5
4
5
6
6
6
6
6
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
76
74
74
77
80
79
81
78
76
77
76
73
73
74
75
76
79
82
86
83
82
79
76

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1014
1013
1013

Ozone (du)

260
259
258
259
259
259
260
261
262
263
263
263
264
265
265
265
265
266
266
267
268
270
271
270

Saturday 20

Waning Crescent 2%

06:21

18:46

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
07 Bad
08 Bad

Sun - Rise: 06:55, Set: 19:11, Transit: 13:02. Moon - Rise: 06:21, Set: 18:46. Civil Dark: 19:44 - 06:22. Nautical Dark: 20:24 - 05:42. Astro Dark: 21:05 - 05:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
97
96
94
93
83
73
57
42
38
38
37
50
61
73
73
70

Low Clouds (% Sky Obscured)

69
47
37
30
43
56
69
66
64
62
66
69
72
67
47
34
24
18
11
13
15
16
18
21

Medium Clouds (% Sky Obscured)

63
73
82
92
93
95
97
96
93
91
88
84
79
53
26
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
68
37
20
27
28
24
24
27
25
25
26
36
39
49
67
67
67

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

Precipitation Probability (%)

0
3
5
9
25
33
37
32
27
28
19
16
16
31
41
48
48
44
36
31
24
10
12
16

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)

9
10
10
11
12
12
13
15
12
10
9
8
8
8
8
8
8
7
7
6
6
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
13
14
14
20
19
19
19
19
19
15
15
16
15
15
15
14
13
13
13
13
14
10

Dew Point (°C)

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

Relative Humidity (%)

75
74
71
69
66
67
68
70
75
78
83
86
90
96
95
93
92
90
90
90
92
93
95
90

Pressure (mb)

1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013

Ozone (du)

270
270
269
268
268
268
269
270
271
272
274
275
277
279
279
279
279
280
280
280
280
281
281
283

Sunday 21

New Moon 0%

07:34

18:56

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 OK

Sun - Rise: 06:56, Set: 19:09, Transit: 13:02. Moon - Rise: 07:34, Set: 18:56. Civil Dark: 19:42 - 06:23. Nautical Dark: 20:21 - 05:44. Astro Dark: 21:02 - 05:03

Total Clouds (% Sky Obscured)

66
64
59
54
60
62
63
50
40
39
27
21
18
11
10
7

Low Clouds (% Sky Obscured)

24
38
51
54
59
57
48
37
27
21
19
16
17
11
9
7

Medium Clouds (% Sky Obscured)

0
0
1
1
7
14
23
25
29
35
27
21
18
11
10
7

High Clouds (% Sky Obscured)

66
45
24
0
0
0
0
3
6
9
6
3
0
0
0
0

ISS Passover

Visibility (miles)

6
4
6
8
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

Precipitation Type

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

Precipitation Probability (%)

20
35
47
59
61
56
47
56
55
53
51
55
60
45
34
30

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

9
11
12
13
14
15
15
15
13
11
9
9
8
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
13
12
12
11
11
11
11
11
11
12
11
11
11
11
11

Relative Humidity (%)

84
79
75
70
66
65
64
63
71
77
86
87
90
93
93
93

Pressure (mb)

1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013

Ozone (du)

286
288
291
294
297
296
296
295
299
302
306
304
303
301
301
302

Forecast for Bath, Bath and North East Somerset, United Kingdom (51.38,-2.36)

Generated: 15/09/25 08:45:21. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+1.00