Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

01:05

17:37

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: 06:49, Set: 19:21, Transit: 13:04. Moon - Rise: 01:05, Set: 17:37. Civil Dark: 19:55 - 06:16. Nautical Dark: 20:35 - 05:36. Astro Dark: 21:17 - 04:54

Total Clouds (% Sky Obscured)

68
82
96
92
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
99
100

Low Clouds (% Sky Obscured)

23
29
23
10
0
50
43
21
37
38
26
37
80
77
41
37
49
90
83
81
86
98
90
100

Medium Clouds (% Sky Obscured)

0
0
63
56
48
94
67
70
53
50
73
85
49
72
65
100
100
100
100
100
100
99
98
100

High Clouds (% Sky Obscured)

38
82
40
37
100
100
100
100
99
100
100
90
100
100
100
100
100
100
84
75
57
4
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
9
9
9
9
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

5
6
3
3
1
3
2
16
1
4
4
6
21
26
28
82
95
91
91
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.8
0.6
0.4
0.9
1.2
0.5
1
2.2

Wind Speed/Direction (mph)

12
11
13
15
14
14
14
14
14
14
13
10
9
7
7
6
7
7
7
8
10
12
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
76
73
68
63
59
59
59
58
61
67
70
74
84
87
90
95
95
93
95
96
95
95
95

Pressure (mb)

1016
1017
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1017
1016
1015
1014
1013
1012

Ozone (du)

300
296
293
290
287
283
279
276
273
271
268
266
263
261
262
260
258
258
256
255
254
257
256
257

Wednesday 17

Waning Crescent 20%

02:28

18:03

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: 06:51, Set: 19:19, Transit: 13:04. Moon - Rise: 02:28, Set: 18:03. Civil Dark: 19:52 - 06:18. Nautical Dark: 20:32 - 05:38. Astro Dark: 21:14 - 04:56

Total Clouds (% Sky Obscured)

100
100
95
97
84
83
85
85
100
81
80
75
100
99
98
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
90
94
80
70
72
69
50
66
67
48
54
60
69
81
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

29
80
62
57
53
32
24
40
54
52
31
37
70
77
58
47
50
68
68
79
74
51
41
50

High Clouds (% Sky Obscured)

0
0
0
0
0
0
16
7
90
0
0
0
95
89
69
85
60
85
48
34
4
1
10
0

ISS Passover

Visibility (miles)

9
6
7
4
7
9
9
9
9
9
9
2
1
8
8
8
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

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

Precipitation Probability (%)

95
55
54
47
35
31
14
14
17
22
32
38
18
18
37
24
16
15
8
8
19
10
8
5

Precipitation Amount (mm)

0.9
0.2
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
15
16
16
17
18
18
18
18
18
18
18
17
17
17
17
17
17
17
17
16
16
16
16

Relative Humidity (%)

93
93
96
96
96
96
96
95
96
95
98
98
98
98
98
98
96
96
96
96
95
95
93
92

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

258
257
258
258
260
264
264
265
264
262
261
259
259
259
260
260
258
257
257
257
257
258
259
259

Thursday 18

Waning Crescent 12%

03:49

18:21

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: 06:52, Set: 19:17, Transit: 13:04. Moon - Rise: 03:49, Set: 18:21. Civil Dark: 19:50 - 06:19. Nautical Dark: 20:30 - 05:40. Astro Dark: 21:11 - 04:58

Total Clouds (% Sky Obscured)

98
77
81
74
59
63
63
67
54
57
78
91
83
89
83
92
92
95
97
98
100
97
87
92

Low Clouds (% Sky Obscured)

98
66
79
74
59
63
63
62
47
57
48
61
52
43
29
27
29
32
40
46
50
49
46
43

Medium Clouds (% Sky Obscured)

25
15
2
0
0
0
12
13
17
4
17
13
12
20
22
32
35
6
5
4
6
5
9
38

High Clouds (% Sky Obscured)

0
0
0
0
0
9
63
61
24
15
29
63
45
53
46
75
77
88
93
96
99
94
73
81

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
1
0
5
12
1
0
0
0
0
7
12
5
1
1
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)

12
12
12
15
16
15
16
16
14
14
13
11
10
9
10
8
8
7
7
6
6
6
6
5

Chance of Frost

Temperature (°C)

18
18
18
19
20
21
22
22
22
22
22
21
19
18
17
17
17
16
16
16
15
15
15
14

Feels Like (°C)

16
16
17
18
18
19
21
21
21
21
21
20
18
18
16
16
16
16
15
15
14
14
13
14

Dew Point (°C)

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

Relative Humidity (%)

90
89
85
82
74
66
60
58
59
60
65
71
78
86
90
90
92
92
92
90
90
89
87
87

Pressure (mb)

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

Ozone (du)

260
259
259
259
259
258
258
258
259
260
261
262
262
262
263
264
264
264
263
263
264
263
263
263

Friday 19

Waning Crescent 6%

05:07

18:35

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

Sun - Rise: 06:54, Set: 19:14, Transit: 13:03. Moon - Rise: 05:07, Set: 18:35. Civil Dark: 19:48 - 06:21. Nautical Dark: 20:27 - 05:41. Astro Dark: 21:09 - 05:00

Total Clouds (% Sky Obscured)

84
97
88
92
87
90
89
84
41
31
34
73
71
65
51
34
60
88
95
100
100
90
81
73

Low Clouds (% Sky Obscured)

60
75
88
78
66
54
46
36
26
30
34
41
31
18
6
20
34
49
59
74
85
73
62
51

Medium Clouds (% Sky Obscured)

6
4
2
2
25
25
8
12
17
12
8
2
5
9
15
21
29
28
38
42
57
33
50
5

High Clouds (% Sky Obscured)

74
82
82
73
61
53
38
24
15
12
10
31
39
37
26
23
51
86
90
100
99
53
62
61

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

Precipitation Probability (%)

1
5
7
7
6
4
4
3
0
0
0
0
0
0
0
5
12
17
59
92
95
95
95
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
1.3
1.2
0.9
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
17
18
20
20
21
22
22
22
22
20
19
18
17
16
16
16
16
16
17
17
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
74
65
59
55
52
52
51
53
58
64
72
76
78
82
81
82
85
90
90
90
92
83

Pressure (mb)

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

Ozone (du)

263
262
262
262
262
262
262
262
262
264
265
265
265
266
266
267
269
268
269
269
271
272
272
272

Saturday 20

Waning Crescent 2%

06:22

18:47

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
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: 06:56, Set: 19:12, Transit: 13:03. Moon - Rise: 06:22, Set: 18:47. Civil Dark: 19:45 - 06:22. Nautical Dark: 20:25 - 05:43. Astro Dark: 21:06 - 05:02

Total Clouds (% Sky Obscured)

81
91
100
89
78
76
65
55
45
55
29
44
46
53
73
79
81
82
86
92
94
96
96
100

Low Clouds (% Sky Obscured)

55
58
62
58
55
50
36
21
7
18
29
40
40
44
44
40
40
42
46
53
60
55
45
49

Medium Clouds (% Sky Obscured)

30
34
43
2
40
42
41
37
39
47
19
27
0
0
0
0
0
0
1
2
3
3
4
4

High Clouds (% Sky Obscured)

72
88
100
82
61
45
15
24
20
20
0
0
25
46
66
79
81
82
80
75
65
60
55
60

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 (%)

52
28
2
2
5
14
17
25
4
6
6
2
4
5
1
7
8
4
15
17
13
16
13
10

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
9
10
11
12
13
13
13
12
11
11
10
10
7
6
5
4
5
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
14
13
14
14
14
14
14
14
14
15
14
14
13
13
13
13
13
10
10
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

86
85
78
69
64
66
62
61
67
62
64
69
74
78
82
87
89
90
93
90
87
83
81
79

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1013
1012
1012
1012
1012
1012
1012
1012
1011

Ozone (du)

273
274
275
276
276
277
278
278
279
282
295
305
309
310
312
314
315
317
319
319
319
319
320
321

Sunday 21

New Moon 0%

No Rise

18:57

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 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:57, Set: 19:10, Transit: 13:03. Moon - Rise: No Rise, Set: 18:57. Civil Dark: 19:43 - 06:24. Nautical Dark: 20:22 - 05:45. Astro Dark: 21:03 - 05:04

Total Clouds (% Sky Obscured)

90
80
72
58
45
31
42
52
69
78
89
95
96
96
86
71
55
41
40
52
60
69
75
78

Low Clouds (% Sky Obscured)

51
56
57
50
40
29
40
50
61
66
66
60
64
63
63
44
35
30
40
46
58
66
74
78

Medium Clouds (% Sky Obscured)

3
2
0
0
0
0
0
0
0
18
36
54
37
21
2
1
1
0
1
3
4
6
7
8

High Clouds (% Sky Obscured)

43
28
0
0
0
0
0
0
0
0
1
1
3
6
8
6
3
1
1
0
0
0
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
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
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

15
16
18
25
26
25
37
45
51
57
55
41
33
25
15
17
16
9
14
11
3
6
5
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
10
10
10
10
15
15
15
15
15
15
10
8
7
7
7
6
6
6
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

76
73
72
70
63
56
52
57
63
68
71
75
77
79
80
81
78
77
76
74
74
73
76
77

Pressure (mb)

1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1015
1016
1016
1017
1017
1017
1017
1018
1018
1019

Ozone (du)

321
322
323
323
325
326
327
327
327
326
326
326
326
327
327
328
328
328
328
328
328
328
330
332

Monday 22

Waxing Crescent 1%

07:35

19:07

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 OK
00 OK

Sun - Rise: 06:59, Set: 19:07, Transit: 13:02. Moon - Rise: 07:35, Set: 19:07. Civil Dark: 19:41 - 06:26. Nautical Dark: 20:20 - 05:47. Astro Dark: 21:01 - 05:06

Total Clouds (% Sky Obscured)

68
53
49
50
54
63
65
63
58
46
35
31
34
46
56
45
37
27

Low Clouds (% Sky Obscured)

68
53
49
50
54
56
55
55
51
39
35
31
30
26
24
21
18
16

Medium Clouds (% Sky Obscured)

8
9
15
19
20
18
20
22
21
21
19
22
24
33
39
37
35
27

High Clouds (% Sky Obscured)

0
0
0
1
2
4
1
0
0
0
0
0
1
3
11
11
7
1

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
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

4
4
3
12
22
25
31
35
37
39
37
46
37
27
14
14
11
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
5
6
6
6
6
7
11
12
12
12
12
13
9
9
10
9
9

Dew Point (°C)

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

Relative Humidity (%)

78
73
69
65
59
54
50
47
45
43
47
51
57
57
60
62
64
67

Pressure (mb)

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

Ozone (du)

334
333
333
332
330
329
328
327
326
325
324
322
321
320
320
319
319
318

Forecast for Bristol, Bristol, United Kingdom (51.45,-2.59)

Generated: 16/09/25 07:07:44. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00