Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 24

Waxing Gibbous 97%

18:10

04:02

00 OK
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 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)

39
53
60
86
97
91
89
89
97
100
91
89
99
89
96
100
100
98
94
84
90
56
49
33

Low Clouds (% Sky Obscured)

0
0
0
0
10
9
9
11
0
0
2
4
13
15
15
17
15
10
17
17
12
16
27
29

Medium Clouds (% Sky Obscured)

5
27
12
56
88
28
78
31
14
10
3
3
3
3
9
18
5
3
3
0
0
0
0
0

High Clouds (% Sky Obscured)

39
53
60
71
88
64
75
79
93
100
88
82
99
76
91
100
100
97
88
75
86
46
38
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
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
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)

2
2
2
3
3
3
3
3
3
4
7
7
8
9
9
9
9
10
8
7
6
6
5
5

Chance of Frost

Temperature (°C)

10
9
9
8
8
8
8
8
9
12
14
16
18
19
20
21
21
20
19
17
15
14
14
14

Feels Like (°C)

7
7
7
6
6
6
6
6
8
10
12
14
16
17
18
19
18
18
17
15
14
13
15
15

Dew Point (°C)

5
5
5
5
5
5
6
7
7
8
8
7
8
8
8
8
9
9
11
12
13
13
13
13

Relative Humidity (%)

72
75
80
81
79
82
88
93
88
76
63
55
52
48
45
44
45
49
60
73
83
92
93
95

Pressure (mb)

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

Ozone (du)

294
295
294
292
290
290
290
289
289
288
286
284
284
283
282
282
282
282
282
281
281
281
281
280

Friday 25

Waxing Gibbous 98%

18:22

05:19

00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 Good
11 Good
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: 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)

34
43
37
35
39
38
43
41
26
20
13
18
98
100
63
56
91
95
95
100
97
99
100
95

Low Clouds (% Sky Obscured)

31
27
27
27
28
27
30
26
16
14
9
9
10
10
14
17
16
21
20
23
16
0
0
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
11
30
34
34
30
68

High Clouds (% Sky Obscured)

3
8
3
0
0
0
0
0
0
0
0
8
97
100
53
42
85
89
89
100
91
86
95
85

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
6
17
18
31
100
100
100
96
93
46
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
1
0
2
3
2
1
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
5
4
4
3
3
3
2
2
2
2
2
4
3
5
6
6
8
11
10
8
8
9
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
15
15
15
15
15
14
15
16
18
20
21
19
21
22
22
20
17
14
13
12
10
10

Dew Point (°C)

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

Relative Humidity (%)

95
96
95
95
96
95
95
95
92
84
75
66
60
57
53
52
52
53
63
73
78
84
86
87

Pressure (mb)

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

Ozone (du)

280
279
279
279
279
280
281
284
285
285
285
284
282
282
282
283
282
282
283
282
283
282
281
280

Saturday 26

Full Moon 99%

18:34

06:38

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: 07:00, 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)

100
100
100
90
78
72
100
100
100
100
100
97
100
100
100
100
100
100
100
95
89
85
87
91

Low Clouds (% Sky Obscured)

9
50
0
0
0
0
0
0
0
0
0
19
25
32
19
12
15
18
0
0
0
2
8
16

Medium Clouds (% Sky Obscured)

99
75
75
75
64
3
3
0
0
0
0
0
67
69
100
100
91
94
96
94
89
85
87
91

High Clouds (% Sky Obscured)

95
61
63
90
78
72
100
100
100
100
100
93
99
100
100
100
99
99
100
87
73
55
49
52

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
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
5
5
4
4
4
4
4
3
3
4
5
7
7
7
7
7
6
5
3
3
3
2
2

Chance of Frost

Temperature (°C)

12
11
11
10
10
9
8
8
9
11
14
15
17
17
18
18
18
18
17
15
14
14
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
81
83
88
93
93
95
95
88
77
69
62
56
52
49
47
48
50
59
64
66
68
69
71

Pressure (mb)

1020
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

280
285
288
291
293
295
298
299
298
298
299
298
296
297
296
294
294
293
293
292
292
292
293
293

Sunday 27

Waning Gibbous 100%

18:47

07:59

00 Bad
01 Bad
02 OK
03 OK
04 OK
05 OK
06 OK
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: 07:02, 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)

94
89
39
22
27
30
36
97
89
84
94
89
56
57
99
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

15
2
0
0
0
0
0
8
20
41
66
34
25
27
67
93
68
73
49
38
51
7
26
36

Medium Clouds (% Sky Obscured)

94
86
25
16
23
25
29
95
83
63
78
79
36
33
35
33
28
29
39
93
39
76
84
94

High Clouds (% Sky Obscured)

50
40
7
5
13
20
29
22
11
0
0
1
3
5
42
42
61
82
100
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
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
1
6
10
9
17
27
47
48
47
38
26
17
3
5
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

2
3
3
4
4
5
6
6
6
8
10
11
12
13
12
13
12
11
9
8
7
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
71
75
83
87
90
90
90
84
75
68
63
51
48
47
46
58
64
69
83
92
93
96
96

Pressure (mb)

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

Ozone (du)

294
294
297
300
300
300
299
298
298
296
295
297
298
300
299
298
298
297
297
298
299
298
298
298

Monday 28

Waning Gibbous 98%

19:03

09:23

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: 07:03, 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
100
100
100
100
100
100
100
100
93
89
89
83
76
69
77
87
98
95
94

Low Clouds (% Sky Obscured)

32
27
18
21
23
19
20
21
21
20
15
15
35
35
36
34
37
44
53
68
81
94
88
82

Medium Clouds (% Sky Obscured)

97
92
96
100
88
77
54
65
64
64
65
70
70
58
42
29
23
13
4
22
40
58
61
64

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
83
69
59
53
40
24
42
65
84
63
43

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
1
0
1
0
0
0
0
2
2
1
0
0
0
0
0
6
13
7
18
25
19
10
12

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
96
95
95
93
84
80
74
67
59
57
55
53
61
72
83
86
89
90
92

Pressure (mb)

1015
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1016
1016
1016
1016
1016
1015
1015
1014

Ozone (du)

300
301
302
303
305
307
308
310
311
313
314
314
316
319
319
318
318
315
313
310
309
307
306
303

Tuesday 29

Waning Gibbous 93%

19:24

10:50

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: 07:05, 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)

93
95
98
100
100
100
100
98
96
95
94
96
100
100
100
100
100
100
100
94
88
84
80
75

Low Clouds (% Sky Obscured)

75
83
91
99
98
97
94
87
76
61
62
68
69
60
46
42
53
47
45
45
50
55
50
47

Medium Clouds (% Sky Obscured)

69
71
73
75
71
68
65
64
63
62
68
75
81
74
66
59
66
73
80
86
87
84
66
43

High Clouds (% Sky Obscured)

22
48
74
100
100
99
98
92
84
75
83
89
100
100
100
100
96
92
86
60
33
6
21
35

ISS Passover

Visibility (miles)

9
9
9
8
7
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None

Precipitation Probability (%)

27
34
52
69
61
56
37
28
20
9
8
11
22
25
30
37
36
35
37
47
51
47
37
28

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
96
95
93
93
93
93
93
92
92
90
86
85
81
81
80
79
80
78
80
82
85
89
91

Pressure (mb)

1014
1013
1012
1011
1011
1010
1009
1008
1008
1008
1008
1008
1007
1007
1007
1006
1006
1006
1006
1005
1006
1006
1006
1006

Ozone (du)

300
297
295
292
290
290
289
289
288
287
286
285
284
283
283
284
284
285
286
287
289
290
291
292

Wednesday 30

Waning Gibbous 86%

19:53

12:18

Sun - Rise: 07:07, Set: 18:46, Transit: 12:56. Moon - Rise: 19:53, Set: 12:18. Civil Dark: 19:19 - 06:33. Nautical Dark: 19:58 - 05:55. Astro Dark: 20:38 - 05:15

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 23:41:06. Forecast: 24/09/26 to 30/09/26. Timezone: UTC+1.00