Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Crescent 1%

06:32

17:23

00 Bad
01 Bad
02 Bad
03 Bad
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

Sun - Rise: 07:41, Set: 18:02, Transit: 12:51. Moon - Rise: 06:32, Set: 17:23. Civil Dark: 18:36 - 07:07. Nautical Dark: 19:15 - 06:28. Astro Dark: 19:53 - 05:49

Total Clouds (% Sky Obscured)

99
98
100
95
94
100
100
100
100
100
100
100
100
93
98
100
100
89
64
74
74
81
80
73

Low Clouds (% Sky Obscured)

41
67
51
75
82
73
77
70
71
75
74
64
71
72
70
81
65
59
57
71
65
77
79
62

Medium Clouds (% Sky Obscured)

29
37
25
61
94
100
79
100
100
89
98
69
100
42
40
79
82
46
25
16
24
32
20
37

High Clouds (% Sky Obscured)

0
56
40
40
17
75
0
0
24
100
99
100
100
83
71
60
53
45
53
8
0
0
0
0

ISS Passover

Visibility (miles)

-
-
-
9
9
9
9
9
4
9
5
9
2
8
9
6
7
8
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

Precipitation Type

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

Precipitation Probability (%)

0
0
0
20
40
41
52
94
95
95
75
95
95
69
71
75
81
56
41
16
3
0
0
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
1.1
0.4
0.3
0.7
0.9
0.3
0.3
0.3
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
5
5
6
8
8
10
13
12
14
15
14
15
12
13
11
8
4
6
9
10
10
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
10
10
8
8
8
8
8
9
8
9
10
10
10
10
11
11
14
11
10
9
10
10
9

Dew Point (°C)

11
11
12
10
10
10
10
10
11
11
11
12
12
12
10
11
11
11
11
11
11
10
10
10

Relative Humidity (%)

100
100
100
95
93
88
88
90
93
92
87
92
90
89
80
83
86
89
90
93
95
93
95
93

Pressure (mb)

994
994
993
993
992
991
990
990
989
989
988
987
986
986
985
984
984
984
985
986
987
988
989
989

Ozone (du)

299
296
295
295
297
300
301
300
301
298
299
304
303
303
305
304
305
300
299
298
298
295
293
289

Tuesday 21

New Moon 0%

07:44

17:34

00 Bad
01 Bad
02 Bad
03 Bad
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

Sun - Rise: 07:42, Set: 18:00, Transit: 12:51. Moon - Rise: 07:44, Set: 17:34. Civil Dark: 18:34 - 07:08. Nautical Dark: 19:13 - 06:29. Astro Dark: 19:52 - 05:51

Total Clouds (% Sky Obscured)

69
54
87
78
65
74
73
96
98
57
94
99
92
90
95
71
80
68
65
54
58
78
62
84

Low Clouds (% Sky Obscured)

61
54
81
68
65
69
68
86
64
57
81
64
51
51
72
60
62
67
64
54
58
67
62
62

Medium Clouds (% Sky Obscured)

24
0
40
11
5
3
4
45
39
0
34
57
48
46
48
26
24
3
4
2
2
2
3
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
8
76
49
50
5
2
2
1
3
27
11
52
22
12
49
15
63

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
7
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
3
1
2
4
15
6
12
7
15
16
23
35
30
25
30
18
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
11
11
12
11
10
11
11
11
13
15
16
15
16
16
15
14
13
12
11
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
10
9
9
10
9
9
10
10
10
9
10
10
10
10
10
9
9

Relative Humidity (%)

95
95
96
96
96
95
96
95
93
90
87
79
77
80
80
80
79
83
87
92
95
93
93
95

Pressure (mb)

990
990
991
991
991
991
992
992
992
993
993
993
993
993
993
994
994
994
995
996
996
997
997
998

Ozone (du)

287
290
292
287
283
282
279
277
277
278
279
282
279
281
283
284
284
281
281
282
282
284
283
285

Wednesday 22

Waxing Crescent 1%

08:57

17:49

00 Bad
01 Bad
02 Bad
03 Bad
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

Sun - Rise: 07:44, Set: 17:58, Transit: 12:51. Moon - Rise: 08:57, Set: 17:49. Civil Dark: 18:32 - 07:10. Nautical Dark: 19:11 - 06:31. Astro Dark: 19:50 - 05:52

Total Clouds (% Sky Obscured)

79
77
69
82
90
98
89
94
100
100
100
99
93
100
100
93
100
100
100
100
100
98
95
90

Low Clouds (% Sky Obscured)

64
65
69
73
73
72
73
76
60
49
37
42
53
42
43
49
66
87
96
97
95
90
92
86

Medium Clouds (% Sky Obscured)

51
19
2
0
15
18
11
9
8
52
28
21
15
19
90
23
23
100
98
100
99
81
81
87

High Clouds (% Sky Obscured)

33
5
25
46
47
80
49
73
100
100
97
96
45
100
56
60
77
99
100
100
100
15
15
4

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
8
28
36
45
82
95
95
95
85
62
75

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
0.6
1.2
0.5
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
93
91
91
91
91
91
93
90
82
76
70
66
64
64
66
73
79
80
85
90
92
92

Pressure (mb)

998
998
998
999
999
999
999
999
999
999
999
999
998
998
997
996
995
994
993
992
991
990
989
988

Ozone (du)

284
281
279
281
284
286
288
290
291
293
291
289
289
287
286
287
288
288
289
289
291
295
294
293

Thursday 23

Waxing Crescent 4%

10:11

18:07

00 Bad
01 Bad
02 Bad
03 Bad
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 OK
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:46, Set: 17:56, Transit: 12:51. Moon - Rise: 10:11, Set: 18:07. Civil Dark: 18:30 - 07:12. Nautical Dark: 19:09 - 06:33. Astro Dark: 19:48 - 05:54

Total Clouds (% Sky Obscured)

89
82
78
74
75
75
68
82
88
96
97
99
100
100
99
99
87
31
24
39
60
92
100
100

Low Clouds (% Sky Obscured)

83
80
77
74
72
64
55
69
79
90
87
83
80
77
76
64
44
29
15
10
7
13
20
20

Medium Clouds (% Sky Obscured)

71
69
72
66
40
71
54
17
59
60
70
82
98
98
98
97
82
29
22
36
48
79
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
9
10
40
70
100
72
42
13
5
3
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
6
5
9
9
9
9
9
5
4
4
9
2
0
3
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

77
80
71
52
44
47
39
54
89
95
68
88
95
95
77
16
9
5
1
3
3
3
19
27

Precipitation Amount (mm)

0.5
0.6
0.4
0
0
0
0
0.2
0.7
1.1
0.3
0.5
2.1
1.5
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
12
12
12
13
13
14
13
15
18
18
19
20
23
22
19
16
15
13
11
10
9
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
11
11
10
10
9
8
7
5
6
4
3
-1
-1
1
3
3
4
4
4
4
2
2

Dew Point (°C)

12
12
12
11
11
10
9
9
9
8
8
7
8
7
6
6
5
4
4
4
4
4
4
5

Relative Humidity (%)

93
95
96
96
95
93
93
93
93
93
95
90
95
94
90
84
76
74
75
77
81
82
84
87

Pressure (mb)

987
986
985
985
985
984
984
984
984
984
984
985
986
989
991
993
995
996
997
998
999
999
1000
1000

Ozone (du)

291
293
298
300
302
319
325
326
323
322
322
321
320
314
310
311
310
308
306
302
301
302
302
305

Friday 24

Waxing Crescent 8%

11:23

18:33

00 Bad
01 Bad
02 Bad
03 Bad
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

Sun - Rise: 07:48, Set: 17:54, Transit: 12:51. Moon - Rise: 11:23, Set: 18:33. Civil Dark: 18:28 - 07:13. Nautical Dark: 19:07 - 06:34. Astro Dark: 19:46 - 05:56

Total Clouds (% Sky Obscured)

100
85
67
52
49
48
55
60
72
94
99
100
97
74
55
33
32
37
38
99
100
100
99
100

Low Clouds (% Sky Obscured)

15
1
2
3
5
6
16
9
6
6
11
10
14
18
24
30
32
33
35
85
70
55
58
60

Medium Clouds (% Sky Obscured)

100
85
29
16
17
27
24
43
57
81
92
67
67
48
55
33
2
36
8
36
50
64
48
35

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
19
2
23
51
82
89
90

ISS Passover

Visibility (miles)

5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
9
5
7
8
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
None
None
None
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

22
17
1
0
1
1
8
10
18
19
28
34
38
29
36
30
76
49
38
50
52
53
46
40

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.8
0
0
0
0.2
0.2
0
0

Wind Speed/Direction (mph)

10
9
8
7
8
8
8
9
10
10
12
14
16
17
18
18
19
19
18
17
17
16
15
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
85
85
88
86
86
86
85
86
85
81
79
77
76
72
80
77
90
84
87
87
87
88
87

Pressure (mb)

1001
1001
1001
1001
1001
1001
1001
1001
1001
1002
1002
1002
1002
1001
1001
1000
1000
1000
1000
1000
998
998
999
1000

Ozone (du)

308
310
304
300
297
295
295
294
296
297
295
295
295
293
295
304
309
308
311
313
315
317
319
320

Saturday 25

Waxing Crescent 15%

12:31

19:08

00 Bad
01 Bad
02 Bad
03 Bad
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

Sun - Rise: 07:49, Set: 17:52, Transit: 12:51. Moon - Rise: 12:31, Set: 19:08. Civil Dark: 18:26 - 07:15. Nautical Dark: 19:05 - 06:36. Astro Dark: 19:44 - 05:57

Total Clouds (% Sky Obscured)

100
99
99
98
94
91
88
92
96
100
100
100
100
96
93
90
94
97
100
89
81
68
56
52

Low Clouds (% Sky Obscured)

63
63
63
61
68
74
80
80
79
78
72
68
64
62
62
61
47
33
20
23
24
22
21
25

Medium Clouds (% Sky Obscured)

24
31
34
32
44
58
69
61
56
50
66
82
98
93
87
79
85
89
92
68
44
20
15
10

High Clouds (% Sky Obscured)

90
64
37
10
9
12
14
39
68
100
95
90
84
58
33
7
36
65
95
72
50
27
19
8

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 (%)

34
30
24
14
16
18
18
17
14
9
10
12
14
22
25
27
22
15
1
2
1
0
1
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
88
88
88
87
84
82
82
81
79
78
77
75
74
71
70
71
74
78
80
82
85
86

Pressure (mb)

1001
1002
1003
1003
1004
1005
1006
1007
1008
1009
1010
1010
1011
1012
1012
1012
1012
1013
1013
1014
1014
1015
1015
1015

Ozone (du)

322
323
321
318
316
317
318
319
316
312
308
304
299
294
294
293
293
293
293
293
295
296
297
296

Sunday 26

Waxing Crescent 22%

12:29

18:57

Sun - Rise: 06:51, Set: 16:50, Transit: 11:51. Moon - Rise: 12:29, Set: 18:57. Civil Dark: 17:24 - 06:17. Nautical Dark: 18:04 - 05:37. Astro Dark: 18:42 - 04:59

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: 20/10/25 03:26:57. Forecast: 20/10/25 to 26/10/25. Timezone: UTC+1.00