Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 6

Waning Gibbous 93%

17:03

10:15

04 Bad
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

Sun - Rise: 07:58, Set: 15:58, Transit: 11:58. Moon - Rise: 17:03, Set: 10:15. Civil Dark: 16:38 - 07:18. Nautical Dark: 17:21 - 06:35. Astro Dark: 18:01 - 05:55

Total Clouds (% Sky Obscured)

89
89
93
95
100
100
100
83
78
83
75
91
82
100
81
95
98
100
92
98
100
98
100
100

Low Clouds (% Sky Obscured)

81
69
66
80
84
71
86
70
73
74
71
84
82
68
67
60
55
64
62
52
49
50
78
70

Medium Clouds (% Sky Obscured)

84
89
72
75
74
76
100
63
12
40
24
27
1
28
37
23
0
0
20
61
70
97
91
81

High Clouds (% Sky Obscured)

89
89
93
37
42
63
100
59
3
2
4
4
3
47
25
78
98
100
91
91
79
86
100
99

ISS Passover

Visibility (miles)

9
6
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

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
None

Precipitation Probability (%)

86
95
78
23
23
28
28
33
39
36
29
24
22
18
7
15
12
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
1.2
0.4
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
12
13
13
17
17
18
19
21
21
20
19
18
18
17
15
15
15
13
12
10
8
7
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
3
3
3
3
3
3
4
4
4
4
3
3
3
3
3
3
3
3
4
5
5
5

Dew Point (°C)

7
8
7
7
7
6
7
8
8
8
8
8
7
7
7
7
7
6
6
6
6
7
7
7

Relative Humidity (%)

85
90
87
87
85
84
88
87
87
87
84
85
85
87
87
87
88
87
85
90
93
94
93
96

Pressure (mb)

991
991
992
992
993
994
995
995
996
996
997
998
998
999
1000
1001
1002
1002
1003
1003
1003
1003
1003
1003

Ozone (du)

286
285
282
281
280
280
279
279
278
277
278
279
278
276
274
276
278
279
279
279
281
280
281
285

Sunday 7

Waning Gibbous 86%

18:29

11:01

04 Bad
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

Sun - Rise: 07:59, Set: 15:58, Transit: 11:58. Moon - Rise: 18:29, Set: 11:01. Civil Dark: 16:38 - 07:19. Nautical Dark: 17:20 - 06:36. Astro Dark: 18:01 - 05:56

Total Clouds (% Sky Obscured)

100
100
100
98
100
100
100
100
100
100
100
99
89
94
94
66
97
64
55
53
100
80
85
87

Low Clouds (% Sky Obscured)

50
62
57
68
95
84
100
100
85
95
91
70
69
73
87
62
50
58
55
50
50
58
66
72

Medium Clouds (% Sky Obscured)

77
81
81
63
92
98
100
98
97
98
84
57
35
44
35
5
0
5
0
2
2
2
36
32

High Clouds (% Sky Obscured)

100
100
100
84
100
100
100
100
100
100
100
32
59
63
58
32
80
10
10
29
100
62
32
43

ISS Passover

Visibility (miles)

6
9
1
0
0
0
0
0
2
9
3
0
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
11
31
28
26
49
95
95
95
61
29
28
23
4
1
1
0
0
0
0
0
0
0
1

Precipitation Amount (mm)

0
0
0
0
0
0
1.1
1.8
1.1
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
7
7
9
12
13
13
14
14
16
17
17
18
17
16
16
13
12
11
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
98
98
96
98
98
96
96
96
96
87
87
87
90
87
87
90
95
96
93
93
91

Pressure (mb)

1003
1003
1002
1002
1002
1001
1001
1000
999
998
998
998
998
999
1001
1002
1003
1004
1005
1005
1006
1006
1006
1006

Ozone (du)

286
286
286
286
285
283
283
283
285
286
287
288
290
292
295
296
298
299
300
299
297
297
299
299

Monday 8

Waning Gibbous 77%

19:58

11:31

04 Bad
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

Sun - Rise: 08:00, Set: 15:58, Transit: 11:59. Moon - Rise: 19:58, Set: 11:31. Civil Dark: 16:37 - 07:20. Nautical Dark: 17:20 - 06:37. Astro Dark: 18:01 - 05:57

Total Clouds (% Sky Obscured)

100
93
97
100
100
100
99
100
86
78
80
83
93
86
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

68
59
67
68
72
54
64
67
76
72
76
78
75
62
73
75
73
72
76
90
91
92
94
93

Medium Clouds (% Sky Obscured)

81
93
77
87
98
100
99
100
86
78
80
12
1
0
0
0
30
95
100
100
100
100
100
99

High Clouds (% Sky Obscured)

99
50
89
100
100
18
15
15
15
15
15
15
66
42
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
2
9
9
9
9
6
6
7
5
9
9
9
9
9
9
1
1
9
5
8
5
8

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

7
21
1
10
20
27
53
91
95
88
52
0
0
1
1
1
6
20
61
76
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
0.6
0.5
0
0
0
0
0
0
0
0
0.2
0.3
0.6
0.6
0.7
0.9

Wind Speed/Direction (mph)

12
13
13
14
14
14
14
14
14
13
12
11
10
10
11
11
10
10
10
15
14
16
18
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
9
10
9
9
9
9
10
10
10
10
10
10
9
9
9
9
9
10
10
10
10
10
10

Relative Humidity (%)

91
91
96
91
93
88
88
90
93
91
93
95
95
95
96
95
95
96
96
96
95
95
93
91

Pressure (mb)

1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1008
1008
1008
1009
1009
1010
1010
1009
1009
1008
1008
1007
1006
1005

Ozone (du)

302
306
308
310
313
318
322
326
326
327
332
336
328
326
324
322
312
305
304
303
297
290
291
288

Tuesday 9

Waning Gibbous 77%

21:23

11:51

04 Bad
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

Sun - Rise: 08:01, Set: 15:58, Transit: 11:59. Moon - Rise: 21:23, Set: 11:51. Civil Dark: 16:37 - 07:21. Nautical Dark: 17:20 - 06:38. Astro Dark: 18:01 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
98
97
97
97
98
97
97
96
88
78
69
67

Low Clouds (% Sky Obscured)

92
91
93
96
100
95
90
86
90
95
100
96
92
89
76
64
49
40
48
62
59
52
46
40

Medium Clouds (% Sky Obscured)

100
100
99
99
98
97
96
95
94
94
79
90
80
79
78
87
73
79
89
80
41
32
17
44

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
96
93
89
61
33
15
25
48
68
66
49
52
38
27
10
20

ISS Passover

Visibility (miles)

3
4
5
4
9
9
9
5
3
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

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

Precipitation Probability (%)

95
95
95
95
95
95
80
95
80
53
45
40
32
25
15
16
5
1
0
0
0
1
0
0

Precipitation Amount (mm)

1.7
0.9
1.6
1.2
0.6
0.5
0.3
0.7
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

21
22
24
24
24
23
23
23
24
24
23
23
21
19
16
13
12
11
11
10
10
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
5
5
6
6
6
6
6
5
6
6
6
7
7
6
6
6
6
6
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
92
92
93
93
93
92
90
92
92
89
89
87
92
93
90
90
93
91
91
91
91

Pressure (mb)

1004
1003
1002
1002
1002
1002
1001
1001
1001
1000
1000
1000
1000
1001
1002
1004
1005
1007
1008
1009
1010
1011
1012
1013

Ozone (du)

286
289
290
290
288
289
289
288
287
288
290
290
290
292
292
293
293
294
295
294
292
291
290
289

Wednesday 10

Waning Gibbous 67%

22:43

12:06

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

Sun - Rise: 08:02, Set: 15:57, Transit: 12:00. Moon - Rise: 22:43, Set: 12:06. Civil Dark: 16:37 - 07:22. Nautical Dark: 17:20 - 06:39. Astro Dark: 18:01 - 05:59

Total Clouds (% Sky Obscured)

63
61
58
54
51
40
39
33
37
41
46
59
68
78
30
41
44
68
81
91
75
59
42
61

Low Clouds (% Sky Obscured)

38
34
35
35
38
37
36
32
37
41
46
39
30
21
30
41
44
68
77
84
61
38
14
40

Medium Clouds (% Sky Obscured)

49
47
21
5
20
3
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
4
2
5

High Clouds (% Sky Obscured)

30
35
31
27
36
15
28
0
0
0
0
18
36
53
0
0
0
0
0
0
10
19
28
36

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 (%)

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
94
93
93
90
90
88
87
87
88
91
93
94
94
94
94
93
93
93
93
91
91

Pressure (mb)

1014
1014
1015
1016
1017
1018
1019
1019
1020
1020
1021
1022
1022
1023
1024
1020
1021
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

290
290
292
295
297
298
301
307
308
308
309
313
317
316
317
316
315
314
314
315
315
314
313
312

Thursday 11

Third Quarter 57%

23:59

12:18

04 Bad
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

Sun - Rise: 08:03, Set: 15:57, Transit: 12:00. Moon - Rise: 23:59, Set: 12:18. Civil Dark: 16:37 - 07:23. Nautical Dark: 17:20 - 06:40. Astro Dark: 18:01 - 05:59

Total Clouds (% Sky Obscured)

80
99
90
81
72
66
60
56
69
82
91
84
75
66
69
74
83
83
85
82
70
58
44
62

Low Clouds (% Sky Obscured)

70
92
81
66
52
42
37
33
31
34
37
32
26
17
19
23
30
52
70
82
69
53
37
57

Medium Clouds (% Sky Obscured)

8
9
6
3
3
26
49
56
47
26
11
5
2
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

44
54
46
36
25
18
10
0
10
19
29
38
48
57
66
74
83
66
44
22
15
10
8
7

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
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3

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)

11
11
11
12
12
13
13
14
14
13
12
12
11
10
10
11
11
12
12
13
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
93
93
93
90
87
84
82
81
79
82
85
86
87
88
90
90
91
93
91
87
84

Pressure (mb)

1022
1022
1022
1021
1021
1021
1021
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1013
1013

Ozone (du)

312
311
310
311
311
312
309
307
304
303
302
301
298
296
294
293
292
291
292
293
294
294
295
295

Friday 12

Waning Crescent 46%

01:11

12:29

Sun - Rise: 08:04, Set: 15:57, Transit: 12:01. Moon - Rise: 01:11, Set: 12:29. Civil Dark: 16:37 - 07:24. Nautical Dark: 17:20 - 06:41. Astro Dark: 18:01 - 06:00

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 06/12/25 04:44:22. Forecast: 06/12/25 to 12/12/25. Timezone: UTC+0.00