Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 25

Waxing Gibbous 95%

19:41

04:00

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

Sun - Rise: 06:19, Set: 20:11, Transit: 13:15. Moon - Rise: 19:41, Set: 04:00. Civil Dark: 20:46 - 05:44. Nautical Dark: 21:29 - 05:01. Astro Dark: 22:18 - 04:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
81
85
77
79
89
65
39
78
100
58
96
68
100
100
100
99
99
91

Low Clouds (% Sky Obscured)

79
45
29
35
41
41
56
76
77
79
81
65
28
18
14
16
12
4
0
0
0
2
0
1

Medium Clouds (% Sky Obscured)

65
64
32
4
0
0
0
4
8
3
4
0
0
1
3
0
21
3
31
20
22
29
99
91

High Clouds (% Sky Obscured)

100
100
100
100
100
98
77
42
44
4
38
5
7
55
100
34
89
55
68
100
100
98
87
47

ISS Passover

Visibility (miles)

7
9
9
9
9
9
9
9
9
9
9
9
9
7
7
7
7
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
29
89
91
99
96
24
3
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 (%)

7
3
0
1
0
2
1
1
0
0
0
2
0
0
0
0
0
0
0
0
1
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
18
18
18
17
17
17
18
17
18
19
19
20
21
20
20
20
20
20
20
19
19
19
18

Dew Point (°C)

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

Relative Humidity (%)

92
93
95
96
96
96
96
98
95
90
86
80
66
57
57
56
58
59
63
65
68
84
89
90

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010

Ozone (du)

327
329
330
330
330
330
330
330
331
331
329
327
325
324
324
326
326
325
325
325
325
325
326
327

Wednesday 26

Waxing Gibbous 99%

19:56

05:15

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

Sun - Rise: 06:21, Set: 20:09, Transit: 13:15. Moon - Rise: 19:56, Set: 05:15. Civil Dark: 20:44 - 05:46. Nautical Dark: 21:27 - 05:03. Astro Dark: 22:15 - 04:15

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
97
71
70
74
96
86
100
95
93
100
100
100
100
99
80

Low Clouds (% Sky Obscured)

27
32
32
85
33
95
95
93
88
85
64
52
55
59
44
34
31
33
39
20
12
9
15
16

Medium Clouds (% Sky Obscured)

33
94
83
62
100
100
95
91
85
75
55
3
0
27
12
15
5
10
85
85
85
90
83
76

High Clouds (% Sky Obscured)

99
86
100
100
100
100
100
100
100
88
20
15
41
95
38
100
94
91
96
100
97
96
95
53

ISS Passover

Visibility (miles)

9
7
6
9
9
3
9
5
1
1
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
Very Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

30
67
95
95
95
95
95
94
89
79
40
24
25
25
17
33
64
32
12
9
5
4
3
3

Precipitation Amount (mm)

0
0.3
0.5
3.1
3
9.3
1.3
0.3
0.3
0.4
0
0
0
0
0
0
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
4
5
6
6
8
9
9
7
6
8
10
11
12
13
14
15
14
14
13
12
9
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
17
18
18
17
18
19
18
19
19
19
19
20
19
18
18
18
18
18
17
17
16
16

Dew Point (°C)

15
16
16
16
16
17
17
18
17
18
18
17
16
13
11
9
8
8
10
11
12
14
15
14

Relative Humidity (%)

90
92
93
92
92
96
96
96
96
98
95
84
74
61
51
43
42
44
48
53
61
75
85
89

Pressure (mb)

1010
1009
1009
1008
1008
1007
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008

Ozone (du)

327
327
328
326
325
323
325
326
326
326
329
332
333
335
337
338
340
340
340
342
345
345
346
346

Thursday 27

Waxing Gibbous 100%

20:09

06:31

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

Sun - Rise: 06:22, Set: 20:07, Transit: 13:15. Moon - Rise: 20:09, Set: 06:31. Civil Dark: 20:42 - 05:48. Nautical Dark: 21:24 - 05:05. Astro Dark: 22:12 - 04:18

Total Clouds (% Sky Obscured)

100
98
92
73
68
60
99
100
100
100
95
88
98
99
100
99
92
60
63
38
28
24
26
61

Low Clouds (% Sky Obscured)

16
15
18
17
22
27
19
18
24
21
21
19
20
44
97
91
87
50
63
31
17
17
15
22

Medium Clouds (% Sky Obscured)

16
15
14
8
13
5
15
20
25
22
19
63
93
96
94
99
84
7
9
7
8
1
7
7

High Clouds (% Sky Obscured)

100
97
91
68
62
60
99
100
100
15
18
8
11
87
25
2
1
0
25
2
0
1
2
57

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

Precipitation Probability (%)

3
2
2
1
2
3
5
4
8
8
13
24
80
95
77
39
22
6
1
1
2
4
2
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.4
2.8
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
3
3
4
4
5
5
5
7
10
13
13
14
15
15
13
13
14
13
11
9
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
14
14
14
14
14
15
15
13
10
8
6
6
12
12
11
9
10
9
11
14
15

Relative Humidity (%)

90
92
92
92
93
93
95
95
96
89
77
58
48
42
46
66
64
58
48
52
50
64
86
92

Pressure (mb)

1009
1008
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009

Ozone (du)

346
345
345
345
344
342
338
336
334
334
332
330
329
327
323
318
316
317
320
318
313
308
306
303

Friday 28

Full Moon 99%

20:21

07:47

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

Sun - Rise: 06:24, Set: 20:05, Transit: 13:14. Moon - Rise: 20:21, Set: 07:47. Civil Dark: 20:39 - 05:49. Nautical Dark: 21:22 - 05:07. Astro Dark: 22:09 - 04:20

Total Clouds (% Sky Obscured)

81
100
99
99
98
99
99
100
100
100
100
96
95
89
73
74
83
83
69
96
79
79
70
76

Low Clouds (% Sky Obscured)

30
46
44
74
70
77
81
87
90
95
100
95
95
87
45
50
58
64
37
81
44
75
69
76

Medium Clouds (% Sky Obscured)

7
13
75
94
97
98
99
100
100
100
11
7
3
0
4
5
8
6
5
3
1
0
0
0

High Clouds (% Sky Obscured)

78
100
97
94
91
94
97
60
37
20
0
0
0
0
0
0
0
18
32
41
56
67
55
59

ISS Passover

Visibility (miles)

9
9
9
9
9
5
8
9
3
1
0
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
Very Light Rain
None
None
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
4
5
12
45
74
54
54
95
95
95
95
95
62
48
35
10
13
16
6
2
4
4
4

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
1.3
2.5
4.8
2
1
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
5
5
6
8
8
7
8
10
11
13
11
10
10
12
13
16
15
14
15
15
15
16

Chance of Frost

Temperature (°C)

15
15
14
14
15
14
15
15
16
16
16
17
18
18
20
19
19
18
19
18
18
17
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
93
90
83
87
93
96
98
96
96
93
89
86
70
59
57
60
57
65
77
79
77
75

Pressure (mb)

1009
1009
1009
1008
1008
1007
1007
1006
1005
1005
1005
1004
1004
1003
1003
1003
1003
1003
1004
1004
1005
1006
1007
1008

Ozone (du)

301
299
296
297
298
298
298
300
301
300
306
308
309
309
311
311
310
310
311
311
310
309
309
308

Saturday 29

Waning Gibbous 96%

20:34

09:04

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

Sun - Rise: 06:25, Set: 20:03, Transit: 13:14. Moon - Rise: 20:34, Set: 09:04. Civil Dark: 20:37 - 05:51. Nautical Dark: 21:19 - 05:09. Astro Dark: 22:06 - 04:22

Total Clouds (% Sky Obscured)

79
79
78
76
74
74
71
70
78
88
97
99
99
100
100
100
100
99
97
96
72
44
19
30

Low Clouds (% Sky Obscured)

78
79
73
60
52
42
32
32
35
39
40
65
78
60
63
67
70
66
67
68
54
32
9
8

Medium Clouds (% Sky Obscured)

0
0
0
5
74
0
71
70
78
88
83
96
98
98
95
93
87
70
55
37
25
13
2
12

High Clouds (% Sky Obscured)

51
65
60
55
55
50
35
35
39
53
73
83
91
93
95
94
100
91
82
76
46
18
2
13

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
4
4
5
6
7
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

9
5
4
5
2
5
4
1
6
8
8
49
80
95
95
95
95
95
95
95
86
64
31
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.8
1.1
1.6
1.5
1
1.4
0.9
0.4
0.3
0
0

Wind Speed/Direction (mph)

14
12
10
6
5
4
3
3
3
4
7
10
12
12
15
14
13
13
11
10
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
74
73
76
87
92
95
95
92
86
77
64
67
70
71
76
84
90
89
89
88
90
92
92

Pressure (mb)

1008
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1008
1008
1007
1007
1006
1006
1006
1007
1007
1008

Ozone (du)

308
307
307
307
308
308
309
310
310
311
310
310
312
313
314
317
321
325
328
330
333
335
337
339

Sunday 30

Waning Gibbous 91%

20:48

10:23

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

Sun - Rise: 06:27, Set: 20:01, Transit: 13:14. Moon - Rise: 20:48, Set: 10:23. Civil Dark: 20:35 - 05:53. Nautical Dark: 21:17 - 05:11. Astro Dark: 22:03 - 04:25

Total Clouds (% Sky Obscured)

41
49
47
47
50
54
59
73
75
82
82
80
80
76
84
91
100
92
85
82
81
80
85
91

Low Clouds (% Sky Obscured)

9
12
24
34
43
49
56
64
45
24
0
11
22
33
42
51
56
52
47
43
30
18
5
5

Medium Clouds (% Sky Obscured)

23
33
22
11
0
0
0
0
25
50
75
80
69
70
69
68
67
61
49
31
23
18
14
12

High Clouds (% Sky Obscured)

25
36
24
12
0
10
17
29
31
40
45
55
60
65
60
60
48
40
32
28
27
52
58
72

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 (%)

29
20
19
16
5
11
12
4
10
10
3
6
5
1
1
1
1
3
6
6
11
12
3
3

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
8
8
10
13
17
14
12
10
11
12
13
12
12
12
12
12
12
12
11
11
8
6
5

Chance of Frost

Temperature (°C)

14
14
14
14
14
14
14
14
14
16
17
18
19
20
20
20
20
20
19
18
18
16
15
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
90
86
83
84
86
86
79
72
68
59
52
45
46
47
47
51
55
60
69
78
89

Pressure (mb)

1008
1008
1008
1009
1010
1010
1011
1012
1013
1014
1015
1015
1016
1016
1017
1017
1017
1018
1018
1018
1018
1019
1019
1020

Ozone (du)

339
339
339
334
329
324
322
320
318
317
316
316
317
318
319
320
321
321
321
320
319
316
313
310

Monday 31

Waning Gibbous 83%

21:06

11:45

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:28, Set: 19:58, Transit: 13:13. Moon - Rise: 21:06, Set: 11:45. Civil Dark: 20:33 - 05:54. Nautical Dark: 21:14 - 05:13. Astro Dark: 22:00 - 04:27

Total Clouds (% Sky Obscured)

92
96
95
95
94
93
91
89
85
82
78
87
95
100
99
99
99
100
100
99

Low Clouds (% Sky Obscured)

6
8
10
10
11
13
17
19
19
23
23
36
48
60
69
77
85
85
83
81

Medium Clouds (% Sky Obscured)

10
9
11
14
20
32
44
55
45
33
22
39
56
76
84
92
99
91
83
74

High Clouds (% Sky Obscured)

74
78
60
47
33
33
32
27
35
40
45
60
82
100
73
40
5
0
0
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

Fog (%)

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

Precipitation Probability (%)

3
1
1
2
1
3
6
2
7
10
4
22
28
27
30
32
28
32
34
33

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
92
92
92
92
92
90
89
80
73
67
67
67
66
69
74
79
80
81

Pressure (mb)

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

Ozone (du)

312
314
316
316
317
318
317
316
315
315
314
314
314
314
313
312
311
311
310
310

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 25/08/26 23:49:47. Forecast: 25/08/26 to 31/08/26. Timezone: UTC+1.00