Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 23

Waxing Gibbous 92%

17:57

02:45

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 Bad
11 OK
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

Sun - Rise: 06:55, Set: 19:02, Transit: 12:59. Moon - Rise: 17:57, Set: 02:45. Civil Dark: 19:36 - 06:22. Nautical Dark: 20:15 - 05:43. Astro Dark: 20:56 - 05:02

Total Clouds (% Sky Obscured)

93
90
90
100
100
29
37
35
73
33
80
97
59
66
59
37
100
72
63
100
100
100
100
100

Low Clouds (% Sky Obscured)

73
75
74
23
4
3
35
32
72
33
53
50
59
49
37
2
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

14
9
7
5
7
0
0
0
0
1
5
0
0
0
0
0
0
3
0
0
0
0
4
41

High Clouds (% Sky Obscured)

72
53
90
100
100
29
0
0
0
0
27
93
27
24
26
31
100
66
63
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
0
0
0
0
0
0
2
2
0
0
0
0
1
0
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)

3
3
1
4
4
4
5
7
12
13
15
14
14
15
14
13
12
9
6
5
3
4
3
3

Chance of Frost

Temperature (°C)

17
17
16
15
15
14
15
16
18
19
20
21
21
21
19
18
17
15
13
12
11
10
9
9

Feels Like (°C)

17
16
15
15
14
13
14
16
16
16
19
18
18
18
15
15
15
13
10
10
8
7
7
6

Dew Point (°C)

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

Relative Humidity (%)

78
78
81
82
93
93
90
82
65
54
48
48
47
47
58
61
59
63
61
60
63
66
70
73

Pressure (mb)

1025
1025
1025
1024
1024
1024
1024
1024
1025
1024
1024
1024
1024
1024
1025
1025
1025
1026
1027
1027
1028
1028
1028
1028

Ozone (du)

280
280
282
282
282
285
286
290
293
293
294
296
295
292
292
294
294
293
294
295
294
293
291
290

Thursday 24

Waxing Gibbous 97%

18:10

04:02

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 OK
20 OK
21 OK
22 Good
23 Good
00 Good
01 OK

Sun - Rise: 06:57, Set: 19:00, Transit: 12:58. Moon - Rise: 18:10, Set: 04:02. Civil Dark: 19:33 - 06:24. Nautical Dark: 20:13 - 05:44. Astro Dark: 20:53 - 05:04

Total Clouds (% Sky Obscured)

100
67
91
92
69
72
61
87
97
94
96
93
93
96
92
87
100
47
33
22
1
2
2
13

Low Clouds (% Sky Obscured)

0
0
0
0
5
3
0
5
4
23
24
38
56
48
34
31
18
0
0
0
0
0
0
6

Medium Clouds (% Sky Obscured)

49
56
9
9
3
11
4
4
0
0
1
0
0
0
0
0
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
49
84
83
53
45
55
79
96
94
96
93
93
96
92
87
100
41
33
22
0
1
1
2

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
2

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
0
0
0
0
0
0
0
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)

3
3
3
3
3
3
3
5
8
9
10
10
10
11
10
9
8
7
6
5
5
5
5
4

Chance of Frost

Temperature (°C)

8
8
8
8
8
7
9
12
14
16
18
19
19
19
19
19
18
16
14
13
12
12
12
11

Feels Like (°C)

6
7
7
6
6
7
8
11
12
14
15
17
18
18
17
17
17
14
13
13
13
13
12
12

Dew Point (°C)

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

Relative Humidity (%)

75
81
85
91
91
90
81
66
59
55
52
52
48
44
45
48
55
71
80
89
93
93
93
93

Pressure (mb)

1028
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1024
1023
1023
1023
1022
1023
1023
1023
1023
1022
1022
1022

Ozone (du)

289
288
286
286
286
285
285
285
283
281
280
279
279
279
279
279
279
279
279
279
280
280
280
280

Friday 25

Waxing Gibbous 99%

18:22

05:19

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

Sun - Rise: 06:58, Set: 18:58, Transit: 12:58. Moon - Rise: 18:22, Set: 05:19. Civil Dark: 19:31 - 06:25. Nautical Dark: 20:10 - 05:46. Astro Dark: 20:51 - 05:06

Total Clouds (% Sky Obscured)

14
27
41
54
60
80
58
20
24
31
31
59
39
58
58
46
80
80
80
76
73
99
70
62

Low Clouds (% Sky Obscured)

7
12
20
18
18
25
22
11
15
30
31
59
39
58
58
37
37
34
24
19
20
22
23
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
4
3
0
0
0
12
11
16
11
8
5
3
7
11
15
11

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
75
80
80
76
73
97
70
62

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 (%)

10
24
33
56
99
100
92
84
7
1
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
0
0
0
0
0
0
0
0
0
2
4
3
4
7
9
11

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)

4
4
3
2
3
2
2
2
2
2
2
3
4
6
8
8
6
2
2
2
3
3
4
5

Chance of Frost

Temperature (°C)

11
11
10
10
10
10
11
12
15
18
20
21
22
23
23
23
21
19
17
16
15
15
15
14

Feels Like (°C)

12
12
11
11
11
12
13
14
17
19
20
21
22
22
21
21
20
20
18
17
16
15
13
15

Dew Point (°C)

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

Relative Humidity (%)

91
91
90
90
88
88
84
72
64
53
48
45
42
39
38
42
48
60
67
72
76
78
79
87

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

280
280
280
280
281
281
281
281
282
282
283
284
284
285
284
283
283
284
285
285
282
282
281
281

Saturday 26

Full Moon 100%

18:34

06:38

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

Sun - Rise: 07:00, Set: 18:55, Transit: 12:58. Moon - Rise: 18:34, Set: 06:38. Civil Dark: 19:29 - 06:27. Nautical Dark: 20:08 - 05:48. Astro Dark: 20:48 - 05:07

Total Clouds (% Sky Obscured)

99
99
99
99
93
91
83
74
61
48
39
47
54
64
65
67
69
81
90
100
89
77
71
70

Low Clouds (% Sky Obscured)

17
12
9
5
0
2
7
5
6
5
6
10
16
21
30
34
42
31
21
13
10
8
6
10

Medium Clouds (% Sky Obscured)

13
14
18
14
13
15
83
74
61
48
39
47
54
60
42
3
27
28
34
41
81
77
71
70

High Clouds (% Sky Obscured)

90
87
87
88
86
80
70
65
56
44
37
47
54
61
59
57
60
73
87
100
85
70
55
55

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 (%)

10
8
9
10
7
7
6
0
0
0
0
0
0
0
0
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)

5
6
6
6
7
7
7
7
8
8
7
7
6
5
4
4
3
2
2
1
1
1
2
2

Chance of Frost

Temperature (°C)

14
13
12
12
11
11
12
13
14
15
17
18
19
19
19
18
17
16
15
14
13
12
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
87
86
88
88
90
84
75
69
58
51
46
42
40
39
40
48
53
55
59
60
58
63
66

Pressure (mb)

1017
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1019
1019
1019
1018
1018
1018

Ozone (du)

281
279
279
279
279
280
281
282
284
286
288
288
289
289
289
289
291
292
293
293
293
292
292
292

Sunday 27

Waning Gibbous 98%

18:47

07:59

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
00 Bad
01 Bad

Sun - Rise: 07:02, Set: 18:53, Transit: 12:57. Moon - Rise: 18:47, Set: 07:59. Civil Dark: 19:26 - 06:29. Nautical Dark: 20:05 - 05:49. Astro Dark: 20:46 - 05:09

Total Clouds (% Sky Obscured)

67
63
59
62
64
69
74
77
85
85
75
75
74
74
69
53
46
58
73
87
90
94
100
100

Low Clouds (% Sky Obscured)

16
23
25
25
22
22
25
27
76
49
13
18
25
26
24
22
16
5
8
4
4
3
3
3

Medium Clouds (% Sky Obscured)

67
63
59
62
64
69
74
77
85
67
10
18
16
14
10
4
0
5
11
17
30
43
56
52

High Clouds (% Sky Obscured)

50
55
50
50
0
0
0
0
1
2
0
0
1
1
2
3
4
21
38
60
60
77
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
0
0
0
0
2
2
1
1
1
1
11
17
14
17
17
16
19
15
1
5
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)

3
3
3
3
3
3
4
5
6
7
8
10
10
11
11
10
9
8
7
6
6
5
4
4

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
12
13
15
17
18
19
19
19
18
17
17
16
15
15
14
14
13
12

Feels Like (°C)

9
9
9
9
9
8
10
12
13
14
16
19
18
17
17
17
19
20
15
15
16
15
14
13

Dew Point (°C)

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

Relative Humidity (%)

69
74
77
76
74
73
67
58
51
44
42
42
44
46
48
56
65
77
74
73
70
74
79
84

Pressure (mb)

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

Ozone (du)

293
294
293
295
297
296
297
297
296
297
299
299
299
298
298
298
298
299
299
300
301
302
303
304

Monday 28

Waning Gibbous 98%

19:03

09:23

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
00 Bad
01 Bad

Sun - Rise: 07:03, Set: 18:51, Transit: 12:57. Moon - Rise: 19:03, Set: 09:23. Civil Dark: 19:24 - 06:30. Nautical Dark: 20:03 - 05:51. Astro Dark: 20:43 - 05:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
97
97
96
94
92
93
92
92
94
96
99
99
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
4
4
4
4
4
4
4
0
0
0
20
40
61
73
86
99
68
37
6
25
44
63
75

Medium Clouds (% Sky Obscured)

51
48
60
72
86
83
74
71
63
54
46
37
30
23
22
19
15
25
40
57
77
84
86
89

High Clouds (% Sky Obscured)

100
100
100
100
100
78
60
40
48
50
51
54
61
63
78
90
98
99
99
100
100
100
100
95

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
8
6
5

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
Light Rain

Precipitation Probability (%)

0
0
0
1
0
0
1
0
0
2
3
2
6
8
9
8
1
7
5
1
29
39
37
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
0.4

Wind Speed/Direction (mph)

4
4
4
4
3
3
3
3
3
4
5
7
6
6
7
6
6
6
5
5
5
6
7
9

Chance of Frost

Temperature (°C)

12
12
11
11
11
11
13
14
15
17
18
19
20
20
20
19
18
18
16
15
14
14
14
14

Feels Like (°C)

10
10
10
10
10
10
10
11
12
12
12
12
19
19
18
18
18
19
15
14
14
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

84
86
87
87
90
92
86
82
77
67
60
54
53
52
51
54
55
58
66
73
82
86
90
95

Pressure (mb)

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

Ozone (du)

305
305
306
307
308
309
311
313
315
316
317
319
317
315
312
311
309
307
307
308
309
309
308
308

Tuesday 29

Waning Gibbous 93%

19:24

10:50

Sun - Rise: 07:05, Set: 18:49, Transit: 12:57. Moon - Rise: 19:24, Set: 10:50. Civil Dark: 19:22 - 06:32. Nautical Dark: 20:01 - 05:53. Astro Dark: 20:41 - 05:13

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: 23/09/26 02:41:57. Forecast: 23/09/26 to 29/09/26. Timezone: UTC+1.00