Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 23

Waxing Gibbous 83%

18:25

01:21

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

Sun - Rise: 06:07, Set: 20:13, Transit: 13:09. Moon - Rise: 18:25, Set: 01:21. Civil Dark: 20:49 - 05:31. Nautical Dark: 21:34 - 04:47. Astro Dark: 22:25 - 03:55

Total Clouds (% Sky Obscured)

21
27
32
26
16
24
84
67
48
60
71
100
100
33
47
80
99
100
98
77
62
86
72
83

Low Clouds (% Sky Obscured)

0
0
23
1
0
2
19
0
0
0
3
6
10
0
0
0
0
5
12
22
15
18
15
15

Medium Clouds (% Sky Obscured)

14
12
10
5
3
5
6
2
2
0
0
0
0
0
0
0
0
10
14
8
3
9
4
6

High Clouds (% Sky Obscured)

0
0
0
1
0
0
64
58
41
60
71
100
100
28
47
80
99
100
84
18
24
23
19
44

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)

3
2
3
5
6
6
5
3
2
3
4
4
5
6
6
6
6
7
10
13
15
16
16
16

Chance of Frost

Temperature (°C)

23
23
22
22
22
21
20
17
15
13
13
13
13
13
12
12
11
12
13
14
17
19
20
21

Feels Like (°C)

23
22
22
21
21
20
20
15
16
14
13
12
10
10
10
11
10
9
9
10
12
14
15
16

Dew Point (°C)

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

Relative Humidity (%)

31
29
28
28
28
32
41
57
75
75
76
79
80
81
83
86
87
83
71
61
53
46
40
37

Pressure (mb)

1025
1024
1024
1023
1023
1022
1022
1023
1023
1023
1023
1024
1023
1023
1023
1022
1022
1022
1022
1021
1021
1020
1019
1018

Ozone (du)

356
354
354
353
352
349
346
345
344
343
343
340
340
339
339
338
335
333
332
330
326
321
321
322

Monday 24

Waxing Gibbous 90%

18:56

02:33

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

Sun - Rise: 06:09, Set: 20:10, Transit: 13:09. Moon - Rise: 18:56, Set: 02:33. Civil Dark: 20:46 - 05:33. Nautical Dark: 21:31 - 04:49. Astro Dark: 22:22 - 03:58

Total Clouds (% Sky Obscured)

88
87
52
36
39
29
55
81
97
100
100
100
97
100
100
99
99
98
100
99
100
98
87
100

Low Clouds (% Sky Obscured)

16
0
0
0
0
0
0
1
13
15
17
18
25
30
29
27
30
39
41
34
46
51
40
37

Medium Clouds (% Sky Obscured)

83
72
8
8
8
10
13
63
24
28
35
41
39
33
34
29
36
26
32
40
37
35
31
27

High Clouds (% Sky Obscured)

30
28
7
4
11
11
55
36
88
100
100
100
30
95
100
99
90
16
99
84
95
98
86
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
Very Light Rain
None
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
5
4
8
7
7
17
42
46
61
58
53
75
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0.5
0.5
0.2
0.5
1.6
2.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
22
22
21
21
20
18
16
15
15
14
14
13
13
13
13
13
13
14
15
16
18
18
18

Feels Like (°C)

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

Dew Point (°C)

7
7
6
5
6
7
8
8
9
9
9
9
10
11
11
12
13
12
12
10
8
6
3
1

Relative Humidity (%)

37
37
35
35
38
43
51
58
65
70
73
75
80
84
87
92
95
93
84
69
57
46
37
31

Pressure (mb)

1017
1017
1016
1015
1014
1014
1014
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1011
1011
1011
1010

Ozone (du)

324
326
328
329
328
329
327
327
328
327
325
323
322
321
321
321
321
323
324
325
324
321
320
319

Tuesday 25

Waxing Gibbous 95%

19:19

03:49

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

Sun - Rise: 06:11, Set: 20:08, Transit: 13:08. Moon - Rise: 19:19, Set: 03:49. Civil Dark: 20:44 - 05:35. Nautical Dark: 21:29 - 04:51. Astro Dark: 22:19 - 04:01

Total Clouds (% Sky Obscured)

98
100
100
92
97
99
96
96
100
87
80
88
95
96
75
52
69
78
79
87
69
51
49
53

Low Clouds (% Sky Obscured)

65
85
96
92
93
89
80
67
48
59
65
68
82
86
60
46
53
47
36
25
40
32
42
45

Medium Clouds (% Sky Obscured)

57
95
97
92
88
93
81
83
52
6
7
12
11
49
68
1
0
0
0
3
0
0
0
0

High Clouds (% Sky Obscured)

33
22
7
8
64
83
47
25
100
59
20
25
37
34
30
4
19
38
50
72
44
21
1
3

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

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

Precipitation Probability (%)

95
76
58
41
15
15
29
45
16
7
2
1
0
0
2
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.4
0.4
0.3
0.3
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
17
17
17
17
17
17
17
16
16
16
16
16
16
15
16
17
18
19
21
22
23

Feels Like (°C)

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

Dew Point (°C)

-0
0
2
4
6
8
9
10
10
12
14
15
15
16
16
15
15
15
15
13
13
12
10
10

Relative Humidity (%)

29
29
34
41
48
55
59
63
66
73
85
92
95
96
96
95
95
96
86
73
66
55
46
41

Pressure (mb)

1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

320
318
315
313
313
313
313
313
316
318
318
318
318
318
318
320
319
320
321
322
323
322
322
322

Wednesday 26

Waxing Gibbous 99%

19:37

05:05

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

Sun - Rise: 06:12, Set: 20:06, Transit: 13:08. Moon - Rise: 19:37, Set: 05:05. Civil Dark: 20:42 - 05:37. Nautical Dark: 21:26 - 04:53. Astro Dark: 22:16 - 04:03

Total Clouds (% Sky Obscured)

55
67
73
82
79
93
98
99
100
100
100
100
100
100
100
100
100
98
96
94
89
85
83
76

Low Clouds (% Sky Obscured)

53
50
18
6
0
0
0
0
9
50
78
72
56
78
72
81
86
81
77
55
49
47
49
41

Medium Clouds (% Sky Obscured)

0
0
2
3
4
17
10
14
95
44
98
96
99
100
96
86
41
31
30
87
89
85
83
61

High Clouds (% Sky Obscured)

4
15
38
58
77
87
93
98
99
99
100
100
100
100
62
50
68
55
76
72
66
61
55
46

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
3
3
4
2
1
5
9
9
9
9
9
9
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
1
5
12
56
93
95
95
95
95
95
95
95
95
95
95
94
86
53
33

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.4
1.9
1.1
1.1
1.5
0.8
1
2
0.9
0.8
0.9
0.6
0.6
0
0

Wind Speed/Direction (mph)

10
12
12
11
10
9
8
7
6
7
7
7
8
8
9
9
10
11
9
8
9
11
13
14

Chance of Frost

Temperature (°C)

24
24
24
24
23
22
20
19
18
18
17
17
17
17
17
17
17
17
17
18
18
19
20
21

Feels Like (°C)

22
21
21
21
20
22
20
18
18
17
18
19
17
17
17
17
17
16
17
17
18
18
18
19

Dew Point (°C)

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

Relative Humidity (%)

38
37
40
43
46
53
67
71
76
82
92
96
98
96
98
98
95
90
85
81
76
69
67
60

Pressure (mb)

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

Ozone (du)

321
320
320
321
321
322
323
323
324
322
323
326
329
331
335
336
334
333
332
332
333
333
335
337

Thursday 27

Waxing Gibbous 100%

19:51

06:22

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

Sun - Rise: 06:14, Set: 20:04, Transit: 13:08. Moon - Rise: 19:51, Set: 06:22. Civil Dark: 20:39 - 05:38. Nautical Dark: 21:23 - 04:55. Astro Dark: 22:13 - 04:06

Total Clouds (% Sky Obscured)

62
58
74
89
100
93
86
56
55
78
74
67
61
54
58
59
65
72
79
86
88
92
93
90

Low Clouds (% Sky Obscured)

35
46
50
25
14
12
9
8
12
17
22
21
24
20
19
18
14
5
10
9
18
28
38
49

Medium Clouds (% Sky Obscured)

14
10
58
89
100
93
16
13
4
8
9
7
5
4
3
2
1
5
8
12
22
31
41
39

High Clouds (% Sky Obscured)

29
20
37
84
92
44
82
33
34
59
48
39
31
20
21
24
30
40
48
58
57
69
82
83

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 (%)

18
6
4
2
1
4
5
2
4
5
4
8
7
3
5
4
2
9
11
8
28
40
48
50

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
13
13
12
9
7
5
5
5
5
5
4
4
4
4
4
5
6
7
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
19
17
17
16
15
15
15
14
14
14
14
13
14
13
13
13
13
14
13
14
14
16

Dew Point (°C)

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

Relative Humidity (%)

50
42
37
40
45
52
61
69
76
79
82
82
83
86
87
87
89
89
79
72
63
60
56
52

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003

Ozone (du)

338
338
338
341
342
344
343
344
343
344
344
342
343
344
344
343
342
340
340
341
341
342
343
344

Friday 28

Full Moon 99%

20:03

07:39

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

Sun - Rise: 06:15, Set: 20:02, Transit: 13:07. Moon - Rise: 20:03, Set: 07:39. Civil Dark: 20:37 - 05:40. Nautical Dark: 21:21 - 04:57. Astro Dark: 22:10 - 04:08

Total Clouds (% Sky Obscured)

90
92
95
97
99
85
71
63
61
57
53
51
50
49
55
59
63
65
69
73
84
93
100
100

Low Clouds (% Sky Obscured)

60
71
79
87
95
85
71
63
56
44
32
21
10
0
0
0
0
0
0
0
19
37
57
54

Medium Clouds (% Sky Obscured)

37
36
38
38
40
25
14
4
3
2
1
5
10
14
22
31
40
35
27
19
26
37
50
62

High Clouds (% Sky Obscured)

83
88
94
92
95
68
41
15
22
28
34
30
28
24
29
30
26
41
54
65
77
89
100
100

ISS Passover

Visibility (miles)

7
6
4
4
4
4
6
7
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

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

Precipitation Probability (%)

57
66
69
81
81
62
47
25
20
12
0
0
0
0
0
0
0
10
15
15
31
40
55
69

Precipitation Amount (mm)

0.2
0.4
0.4
0.6
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
19
18
18
17
16
16
15
14
13
13
13
13
13
13
13
15
16
18
18
18
18

Feels Like (°C)

19
18
18
19
18
19
16
16
16
16
16
17
12
11
12
12
13
13
13
13
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

54
55
58
61
64
67
70
72
75
80
84
90
92
92
93
93
93
95
86
79
72
63
55
47

Pressure (mb)

1002
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

343
343
342
341
341
340
339
339
338
339
339
340
341
342
343
342
342
341
340
338
337
335
333
332

Saturday 29

Waning Gibbous 96%

20:14

08:57

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
05 Bad
06 Bad

Sun - Rise: 06:17, Set: 20:00, Transit: 13:07. Moon - Rise: 20:14, Set: 08:57. Civil Dark: 20:35 - 05:42. Nautical Dark: 21:18 - 04:59. Astro Dark: 22:07 - 04:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
98
97
96
95
94
93
92

Low Clouds (% Sky Obscured)

50
47
44
42
40
46
52
57
69
80
93
95
96
95
94
90
86

Medium Clouds (% Sky Obscured)

74
86
89
91
93
92
95
95
78
63
53
52
50
48
50
55
60

High Clouds (% Sky Obscured)

100
100
100
100
100
97
93
89
77
64
52
40
28
14
19
31
45

ISS Passover

Visibility (miles)

7
6
4
5
5
6
7
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

Precipitation Type

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

Precipitation Probability (%)

77
79
77
73
66
57
44
35
29
25
20
19
18
14
20
24
27

Precipitation Amount (mm)

0.4
0.5
0.5
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
13
12
12
11
11
12
12
12
13
13
13
13
13
12
11

Chance of Frost

Temperature (°C)

17
17
16
16
16
16
16
16
15
15
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

8
10
11
12
13
14
14
14
15
14
14
13
13
13
13
13
13

Relative Humidity (%)

54
62
72
77
81
86
87
90
95
92
89
87
86
87
87
89
90

Pressure (mb)

1006
1006
1006
1005
1005
1004
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004

Ozone (du)

332
332
332
331
331
330
330
330
330
330
330
329
330
330
330
329
327

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

Generated: 23/08/26 13:45:31. Forecast: 23/08/26 to 29/08/26. Timezone: UTC+1.00