Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 13

Waxing Crescent 1%

06:33

20:51

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

Sun - Rise: 05:50, Set: 20:32, Transit: 13:11. Moon - Rise: 06:33, Set: 20:51. Civil Dark: 21:10 - 05:12. Nautical Dark: 21:58 - 04:24. Astro Dark: 22:57 - 03:25

Total Clouds (% Sky Obscured)

9
11
16
32
38
38
39
38
43
44
45
27
27
10
0
2
4
27
38
40
18
10
22
95

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
10
1
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

9
11
16
32
34
38
39
35
39
40
40
27
21
7
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
2
0
0
0
0
0
1
2
0
0
8
3
0
2
3
26
38
35
12
8
20
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
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)

4
3
2
3
3
3
3
3
5
8
9
10
12
14
14
15
14
13
11
10
9
8
6
5

Chance of Frost

Temperature (°C)

22
21
20
19
19
19
20
22
25
27
30
32
34
34
34
34
33
32
31
28
24
22
21
20

Feels Like (°C)

22
21
20
19
20
19
20
23
25
27
28
30
32
31
31
31
31
29
28
25
23
22
22
22

Dew Point (°C)

8
8
7
5
5
5
5
4
2
1
1
2
4
5
5
5
6
5
8
14
15
17
17
16

Relative Humidity (%)

41
41
41
40
40
40
37
29
23
18
15
14
15
15
16
16
18
18
24
41
57
73
77
76

Pressure (mb)

1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1018
1018
1018
1017
1017
1018
1018
1018
1019
1019
1019

Ozone (du)

303
305
306
305
304
303
304
305
304
301
301
302
301
301
302
303
303
303
304
304
305
305
305
304

Friday 14

Waxing Crescent 4%

07:59

21:04

01 Good
02 Good
03 OK
04 OK
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

Sun - Rise: 05:52, Set: 20:30, Transit: 13:11. Moon - Rise: 07:59, Set: 21:04. Civil Dark: 21:08 - 05:14. Nautical Dark: 21:56 - 04:26. Astro Dark: 22:54 - 03:28

Total Clouds (% Sky Obscured)

4
4
30
43
45
53
75
52
67
84
81
82
80
80
76
100
61
61
69
83
88
100
100
100

Low Clouds (% Sky Obscured)

0
4
30
40
38
41
34
10
15
17
18
24
11
14
10
14
16
14
18
27
18
10
16
20

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
22
26
28
52
21
22
39
37
19
25
21
20
21
15
2
32
42
34

High Clouds (% Sky Obscured)

4
0
0
3
7
17
54
20
35
54
49
53
55
58
68
100
50
61
69
83
86
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
0
0
0
0
0
0
0
4
3
10
11
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)

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

Chance of Frost

Temperature (°C)

20
19
18
18
18
17
18
19
21
23
25
26
28
29
29
29
28
27
26
25
24
21
20
19

Feels Like (°C)

20
20
20
20
20
20
20
20
22
23
24
25
25
28
28
27
25
26
25
25
23
19
18
17

Dew Point (°C)

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

Relative Humidity (%)

76
81
85
88
89
92
88
73
59
46
39
34
34
33
32
33
36
40
46
57
66
64
67
69

Pressure (mb)

1019
1019
1019
1018
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

304
306
306
306
306
306
306
305
305
306
306
306
305
305
306
308
307
307
307
307
307
307
308
308

Saturday 15

Waxing Crescent 10%

09:20

21:16

01 Bad
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 Good
15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good
22 Good
23 Good
00 OK

Sun - Rise: 05:53, Set: 20:28, Transit: 13:11. Moon - Rise: 09:20, Set: 21:16. Civil Dark: 21:06 - 05:16. Nautical Dark: 21:53 - 04:28. Astro Dark: 22:50 - 03:31

Total Clouds (% Sky Obscured)

96
80
62
79
71
71
71
63
48
45
41
42
29
1
5
0
0
7
4
2
0
0
2
32

Low Clouds (% Sky Obscured)

27
30
32
31
27
31
35
28
19
15
13
10
1
0
3
0
0
4
3
2
0
0
0
0

Medium Clouds (% Sky Obscured)

20
21
16
9
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

84
37
9
30
32
34
37
35
30
25
25
25
22
1
0
0
0
1
0
0
0
0
2
32

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)

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

Chance of Frost

Temperature (°C)

18
17
16
16
15
15
15
16
17
19
21
23
24
25
26
26
26
25
24
22
20
19
17
16

Feels Like (°C)

16
14
14
14
13
12
12
13
14
16
18
20
21
22
24
24
23
22
21
19
17
16
15
14

Dew Point (°C)

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

Relative Humidity (%)

72
73
75
77
79
82
82
73
63
54
46
39
34
30
27
25
25
26
28
36
42
47
55
65

Pressure (mb)

1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1017
1018
1019
1019
1019

Ozone (du)

308
310
311
312
314
316
318
317
317
317
318
318
319
320
319
318
317
318
319
320
319
319
319
317

Sunday 16

Waxing Crescent 18%

10:39

21:28

01 OK
02 OK
03 OK
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

Sun - Rise: 05:55, Set: 20:26, Transit: 13:11. Moon - Rise: 10:39, Set: 21:28. Civil Dark: 21:04 - 05:18. Nautical Dark: 21:51 - 04:30. Astro Dark: 22:47 - 03:34

Total Clouds (% Sky Obscured)

38
37
40
57
76
93
95
91
88
81
100
100
98
96
93
85
75
67
61
59
58
72
81
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
0
0
14
12
65
65
65
61
59
58
60
45
55

Medium Clouds (% Sky Obscured)

0
0
0
0
3
9
18
54
54
26
59
91
96
92
89
85
75
67
61
59
18
11
8
3

High Clouds (% Sky Obscured)

38
37
40
57
76
93
95
83
59
81
100
100
92
87
80
66
55
32
40
48
27
28
45
76

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
1
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)

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

Chance of Frost

Temperature (°C)

15
14
14
13
13
13
13
14
16
18
19
21
21
22
22
23
21
20
20
18
17
16
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
78
80
84
84
84
77
69
59
51
42
37
35
35
35
35
45
66
70
71
73
75
78
79

Pressure (mb)

1020
1019
1019
1019
1019
1019
1019
1019
1020
1020
1019
1019
1019
1019
1019
1018
1018
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

317
318
319
320
320
321
322
323
323
322
322
323
323
323
324
327
329
331
333
335
336
338
339
336

Monday 17

Waxing Crescent 27%

11:57

21:42

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
00 Bad

Sun - Rise: 05:56, Set: 20:24, Transit: 13:10. Moon - Rise: 11:57, Set: 21:42. Civil Dark: 21:01 - 05:19. Nautical Dark: 21:48 - 04:33. Astro Dark: 22:44 - 03:37

Total Clouds (% Sky Obscured)

100
100
100
89
76
67
80
88
95
96
98
100
100
100
100
99
97
96
97
97
98
98
98
99

Low Clouds (% Sky Obscured)

50
50
50
3
13
35
54
41
32
35
56
65
73
80
82
75
59
43
51
59
67
48
33
15

Medium Clouds (% Sky Obscured)

4
17
45
1
1
0
8
11
17
20
25
25
20
21
25
20
17
15
18
17
16
39
67
91

High Clouds (% Sky Obscured)

80
85
85
76
63
54
63
72
72
79
74
100
100
100
100
96
95
93
74
49
18
14
10
10

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
0
0
4
14
11
8
1
2
2
2
10
12
11
13
11
1

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
3
3
3
3
3
4
4
6
7
8
9
9
9
7
6
6
7
7
8
8
8

Chance of Frost

Temperature (°C)

14
14
13
13
12
12
13
15
17
19
20
20
21
21
22
23
22
22
21
20
19
18
18
18

Feels Like (°C)

12
12
12
11
12
12
12
13
16
18
18
19
20
20
20
20
20
20
20
21
21
21
20
20

Dew Point (°C)

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

Relative Humidity (%)

79
82
82
80
92
93
84
76
72
64
60
58
58
53
48
44
44
42
42
49
57
66
70
74

Pressure (mb)

1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016

Ozone (du)

336
331
330
327
324
319
317
317
314
311
307
305
304
304
303
303
302
301
300
299
299
299
298
298

Tuesday 18

Waxing Crescent 36%

13:14

21:58

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 OK
19 OK
20 OK
21 OK
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:58, Set: 20:22, Transit: 13:10. Moon - Rise: 13:14, Set: 21:58. Civil Dark: 20:59 - 05:21. Nautical Dark: 21:46 - 04:35. Astro Dark: 22:40 - 03:40

Total Clouds (% Sky Obscured)

98
97
96
93
89
86
88
91
94
96
98
100
89
81
78
66
53
35
36
36
43
45
47
49

Low Clouds (% Sky Obscured)

40
63
81
80
80
78
72
65
58
61
64
64
59
50
42
37
29
21
25
29
29
29
29
29

Medium Clouds (% Sky Obscured)

84
78
70
59
53
50
39
30
29
23
16
10
14
15
20
12
4
0
2
5
6
8
13
18

High Clouds (% Sky Obscured)

14
14
18
14
9
6
30
64
94
95
95
85
65
59
49
39
25
4
3
8
15
14
11
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
None
None
None
None
None
None
None

Precipitation Probability (%)

3
3
1
4
3
0
0
0
0
6
10
12
10
7
0
0
0
0
0
0
0
1
3
5

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)

8
9
10
10
10
11
10
12
13
15
15
16
17
17
18
19
18
17
17
15
13
12
12
12

Chance of Frost

Temperature (°C)

17
18
18
18
18
18
18
19
20
21
21
22
22
23
24
24
23
22
21
20
18
17
17
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
83
88
90
89
89
88
81
76
70
69
68
67
55
46
38
43
48
55
63
72
82
83
87

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1013
1013

Ozone (du)

298
298
298
298
298
298
298
298
297
297
297
297
297
297
298
298
297
296
295
297
300
302
302
302

Wednesday 19

Waxing Crescent 46%

14:29

22:20

Sun - Rise: 06:00, Set: 20:20, Transit: 13:10. Moon - Rise: 14:29, Set: 22:20. Civil Dark: 20:57 - 05:23. Nautical Dark: 21:43 - 04:37. Astro Dark: 22:37 - 03:43

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 Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 13/08/26 01:14:37. Forecast: 13/08/26 to 19/08/26. Timezone: UTC+1.00