Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

01:00

17:34

05 Bad
06 Bad
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

Sun - Rise: 06:44, Set: 19:18, Transit: 13:01. Moon - Rise: 01:00, Set: 17:34. Civil Dark: 19:52 - 06:11. Nautical Dark: 20:32 - 05:31. Astro Dark: 21:14 - 04:51

Total Clouds (% Sky Obscured)

47
51
46
46
100
85
100
100
100
100
100
100
100
100
93
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

47
44
43
45
49
54
34
41
76
44
28
37
22
32
43
72
45
38
65
64
89
90
97
94

Medium Clouds (% Sky Obscured)

0
0
0
0
0
12
0
5
78
51
60
45
72
68
56
77
94
100
100
100
100
99
100
97

High Clouds (% Sky Obscured)

0
3
0
46
41
63
95
94
100
100
100
100
100
81
74
100
100
100
100
100
94
75
70
10

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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

2
6
2
2
1
1
0
0
0
16
2
4
3
8
16
18
13
43
83
94
86
81
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.8
0.4
0.2
0.8
0.8

Wind Speed/Direction (mph)

10
10
10
10
14
17
16
16
16
16
15
14
13
12
10
8
8
8
8
8
8
9
11
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
81
81
80
73
66
62
58
55
56
57
57
62
69
76
86
89
89
84
87
90
90
90
92

Pressure (mb)

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

Ozone (du)

304
305
303
300
296
293
291
286
281
277
274
272
269
265
263
261
260
260
258
258
255
255
252
254

Wednesday 17

Waning Crescent 20%

02:24

18:00

05 Bad
06 Bad
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

Sun - Rise: 06:46, Set: 19:16, Transit: 13:01. Moon - Rise: 02:24, Set: 18:00. Civil Dark: 19:49 - 06:13. Nautical Dark: 20:29 - 05:33. Astro Dark: 21:11 - 04:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
94
98
95
91
98
97
100
100
99
100
99
100
99
100
98
96
99
91

Low Clouds (% Sky Obscured)

88
95
100
100
100
99
88
97
88
83
97
93
100
100
98
100
90
96
98
100
96
95
98
83

Medium Clouds (% Sky Obscured)

74
100
97
75
73
35
27
50
40
23
41
84
54
63
30
30
82
22
25
8
39
46
43
21

High Clouds (% Sky Obscured)

4
3
0
0
2
0
0
0
0
0
6
40
0
0
0
60
70
89
55
13
1
0
1
1

ISS Passover

Visibility (miles)

9
4
9
9
7
9
9
9
9
9
9
9
2
2
1
0
1
1
9
9
9
2
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
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

74
83
84
49
38
41
36
12
9
3
8
14
23
39
17
1
6
5
5
2
1
1
1
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
90
90
93
93
95
96
95
96
93
95
96
96
96
96
98
98
96
95
96
96
95
93

Pressure (mb)

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

Ozone (du)

255
255
256
256
257
258
261
263
264
264
264
262
261
260
259
259
259
259
259
257
256
257
257
258

Thursday 18

Waning Crescent 12%

03:46

18:19

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

Sun - Rise: 06:48, Set: 19:13, Transit: 13:00. Moon - Rise: 03:46, Set: 18:19. Civil Dark: 19:47 - 06:14. Nautical Dark: 20:27 - 05:34. Astro Dark: 21:08 - 04:55

Total Clouds (% Sky Obscured)

100
84
90
76
83
62
80
59
68
39
64
71
51
44
96
94
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
72
82
76
83
62
80
57
45
39
40
34
30
35
26
32
34
37
45
48
49
49
49
50

Medium Clouds (% Sky Obscured)

7
12
13
0
0
0
0
0
4
4
14
8
15
14
9
27
31
4
12
20
15
8
4
4

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
7
59
5
64
71
45
6
81
36
100
100
100
100
100
100
100
99

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
5
0
2
0
2
14
3
0
0
0
0
0
3
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)

14
14
14
14
16
17
17
18
18
18
17
17
15
14
13
11
10
10
9
8
8
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
92
89
86
88
80
72
64
61
60
63
69
77
86
92
93
93
95
95
95
95
95
95

Pressure (mb)

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

Ozone (du)

258
259
259
258
258
258
258
258
257
257
256
257
259
259
259
259
260
261
262
262
262
261
262
263

Friday 19

Waning Crescent 6%

05:04

18:32

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

Sun - Rise: 06:49, Set: 19:11, Transit: 13:00. Moon - Rise: 05:04, Set: 18:32. Civil Dark: 19:44 - 06:16. Nautical Dark: 20:24 - 05:36. Astro Dark: 21:06 - 04:56

Total Clouds (% Sky Obscured)

100
99
94
87
78
85
93
100
91
63
81
84
39
34
36
43
43
52
77
99
99
100
100
100

Low Clouds (% Sky Obscured)

56
60
66
67
65
62
56
50
50
47
41
32
24
16
17
18
21
31
39
51
56
59
70
74

Medium Clouds (% Sky Obscured)

13
61
55
55
55
50
55
44
32
6
24
2
2
2
2
2
2
3
2
4
23
88
88
38

High Clouds (% Sky Obscured)

97
96
77
58
37
60
80
100
84
63
53
47
37
28
20
17
21
36
73
95
97
100
100
99

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
1
1
2
1
1
0
0
1
0
0
0
0
0
1
1
13
31
49
68

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
96
95
83
72
65
57
52
47
45
46
54
62
76
85
83
83
86
83
87
89
90
92

Pressure (mb)

1017
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1012
1012
1012

Ozone (du)

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

Saturday 20

Waning Crescent 2%

05:04

18:44

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

Sun - Rise: 06:51, Set: 19:09, Transit: 13:00. Moon - Rise: 05:04, Set: 18:44. Civil Dark: 19:42 - 06:17. Nautical Dark: 20:22 - 05:38. Astro Dark: 21:03 - 04:58

Total Clouds (% Sky Obscured)

100
100
99
99
98
99
99
100
79
57
36
30
27
25
33
45
48
71
87
100
100
100
100
100

Low Clouds (% Sky Obscured)

73
75
71
67
55
58
61
58
51
42
32
29
25
21
24
23
23
36
49
61
53
45
35
37

Medium Clouds (% Sky Obscured)

57
60
76
53
35
13
35
35
27
35
35
30
2
3
0
0
0
2
7
15
24
28
27
29

High Clouds (% Sky Obscured)

92
100
98
97
96
97
98
100
78
44
1
20
0
0
27
36
35
56
73
90
90
90
85
75

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
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

Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

84
95
92
71
25
13
4
0
4
22
19
32
12
2
9
8
3
3
2
1
5
7
4
9

Precipitation Amount (mm)

0.4
0.8
0.7
0.4
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
11
11
10
11
11
12
12
13
13
14
13
11
10
10
6
5
3
3
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
89
83
82
80
74
65
59
57
52
56
60
67
67
71
76
83
90
92
93
93
95
95
96

Pressure (mb)

1012
1012
1012
1012
1013
1013
1013
1013
1014
1013
1013
1013
1013
1013
1013
1012
1013
1013
1013
1013
1013
1012
1012
1012

Ozone (du)

272
271
271
272
272
272
273
273
273
274
275
276
280
295
300
302
303
305
308
311
314
315
317
318

Sunday 21

New Moon 0%

06:19

18:54

05 Bad
06 Bad
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

Sun - Rise: 06:52, Set: 19:06, Transit: 12:59. Moon - Rise: 06:19, Set: 18:54. Civil Dark: 19:40 - 06:19. Nautical Dark: 20:19 - 05:40. Astro Dark: 21:00 - N/A

Total Clouds (% Sky Obscured)

100
100
82
64
46
50
54
60
49
47
40
46
47
44
58
67
70
65
57
53
59
66
71
78

Low Clouds (% Sky Obscured)

40
41
43
44
45
50
54
60
49
47
40
44
33
26
35
45
56
52
47
41
50
59
68
76

Medium Clouds (% Sky Obscured)

34
32
19
8
3
2
1
0
0
0
0
11
22
35
32
30
25
19
13
6
6
5
5
5

High Clouds (% Sky Obscured)

50
50
43
27
0
0
0
0
0
0
0
0
0
0
1
2
2
2
1
1
1
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
3
7
7
4
11
15
17
25
30
33
43
51
50
44
38
30
28
23
11
21
21
12
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
4
5
5
6
6
6
6
5
5
5
2
2
5
6
7
9
9
9
9
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
9
9
7
8
9
9
9
10
12
12
11
11
11
12
8
8
8
8
7
7
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

96
96
95
84
75
65
61
56
52
53
55
58
64
72
80
84
88
93
91
90
88
87
85
84

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1015
1016
1016
1017
1017
1017
1017

Ozone (du)

318
318
318
319
319
320
322
324
326
326
326
326
326
327
328
328
328
328
327
327
327
327
327
327

Monday 22

Waxing Crescent 1%

07:32

19:04

05 Bad
06 Bad
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

Sun - Rise: 06:54, Set: 19:04, Transit: 12:59. Moon - Rise: 07:32, Set: 19:04. Civil Dark: 19:37 - 06:21. Nautical Dark: 20:17 - 05:41. Astro Dark: 20:58 - 05:00

Total Clouds (% Sky Obscured)

85
92
80
67
51
53
55
60
64
77
96
97
99
99
99
99
97
78
58
39

Low Clouds (% Sky Obscured)

83
90
80
67
51
53
55
60
62
61
61
75
85
93
94
96
92
70
48
28

Medium Clouds (% Sky Obscured)

4
4
3
1
0
4
8
14
15
18
19
18
17
14
18
20
21
14
15
12

High Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
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

Fog (%)

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

Precipitation Probability (%)

9
0
2
3
4
11
13
15
20
26
32
31
35
41
32
25
4
4
3
0

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
84
78
74
71
64
60
55
54
52
51
50
51
51
52
54
56
62
67

Pressure (mb)

1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

328
329
330
331
332
333
332
330
329
328
327
326
325
324
323
322
321
321
320
320

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 16/09/25 05:24:04. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00