Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waning Crescent 15%

00:48

17:29

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
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:05, Set: 20:59, Transit: 13:02. Moon - Rise: 00:48, Set: 17:29. Civil Dark: 21:42 - 04:23. Nautical Dark: 22:42 - 03:23. Astro Dark: 00:35 - 01:38

Total Clouds (% Sky Obscured)

63
68
75
93
98
100
79
100
100
100
100
92
97
81
71
84
98
100
94
99
99
98
100
100

Low Clouds (% Sky Obscured)

51
44
32
26
11
43
48
63
58
61
58
67
69
54
63
69
80
76
79
78
68
66
59
46

Medium Clouds (% Sky Obscured)

3
9
14
25
41
77
72
79
86
49
17
13
30
81
71
83
72
38
71
46
52
67
71
96

High Clouds (% Sky Obscured)

35
46
66
49
92
100
56
100
100
96
100
86
94
11
18
25
86
100
61
77
79
90
85
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
9
9
9
9
7
9
9
3
7
9
9
6
2
2

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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

5
8
4
14
51
45
32
41
57
61
69
64
61
67
71
70
77
86
66
69
80
77
93
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.6
0.2
0.2
0.5
0.6
0.8
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
48
52
61
72
85
85
89
86
85
87
90
90
93
92
93
89
78
80
77
67
64
68
75

Pressure (mb)

1001
1000
1000
1001
1001
1001
1001
1001
1000
1000
999
999
999
999
999
999
999
999
1000
1000
1000
1000
1001
1001

Ozone (du)

356
358
357
354
353
356
356
354
356
358
358
355
355
354
353
352
353
353
355
355
356
358
358
359

Monday 21

Waning Crescent 8%

01:35

18:51

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

Sun - Rise: 05:07, Set: 20:58, Transit: 13:02. Moon - Rise: 01:35, Set: 18:51. Civil Dark: 21:41 - 04:24. Nautical Dark: 22:40 - 03:25. Astro Dark: 00:26 - 01:45

Total Clouds (% Sky Obscured)

100
100
45
63
44
11
7
22
2
86
28
65
82
88
85
89
89
99
94
98
86
90
91
97

Low Clouds (% Sky Obscured)

36
0
34
26
39
11
0
0
0
0
25
36
54
70
71
84
72
82
75
55
59
87
61
40

Medium Clouds (% Sky Obscured)

55
55
45
28
20
1
0
0
0
0
0
17
23
32
29
47
35
52
45
42
30
31
34
37

High Clouds (% Sky Obscured)

100
100
30
12
2
0
0
11
2
72
7
0
23
0
0
1
15
10
6
73
3
47
81
81

ISS Passover

Visibility (miles)

9
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
8
3

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

Precipitation Probability (%)

85
45
23
17
16
13
6
6
1
0
0
0
1
13
7
12
6
10
31
47
51
46
59
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
82
84
88
90
89
89
89
90
93
95
96
95
90
82
72
65
60
60
61
75
62
64

Pressure (mb)

1001
1002
1002
1003
1003
1004
1005
1005
1006
1006
1006
1007
1007
1008
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011

Ozone (du)

358
357
356
355
355
356
356
357
355
351
349
345
344
341
339
335
335
336
337
337
338
337
338
339

Tuesday 22

Waning Crescent 3%

02:41

19:57

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
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:08, Set: 20:57, Transit: 13:02. Moon - Rise: 02:41, Set: 19:57. Civil Dark: 21:39 - 04:26. Nautical Dark: 22:38 - 03:28. Astro Dark: 00:18 - 01:52

Total Clouds (% Sky Obscured)

91
93
94
95
88
83
88
98
65
89
96
98
96
100
100
100
100
88
79
83
76
95
100
100

Low Clouds (% Sky Obscured)

44
36
30
45
40
54
54
63
61
50
62
52
34
32
37
7
59
57
58
58
48
38
28
37

Medium Clouds (% Sky Obscured)

31
25
41
39
41
32
30
23
21
24
93
96
96
96
93
90
88
88
31
22
24
23
20
18

High Clouds (% Sky Obscured)

80
71
42
75
12
0
24
76
13
76
63
84
18
87
100
100
100
48
6
22
27
64
82
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

63
63
51
35
41
41
20
32
12
8
9
24
37
47
35
30
29
39
62
73
55
39
30
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
13
13
9
8
6
5
6
5
5
5
6
5
5
7
8
7
7
8
8
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
16
16
16
16
15
14
14
14
13
13
13
13
14
14
15
15
15
14
14
12
9
9

Relative Humidity (%)

77
77
78
84
90
93
92
90
90
90
90
92
93
93
92
87
89
89
83
73
67
56
44
43

Pressure (mb)

1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1012
1012

Ozone (du)

341
342
343
345
345
346
349
351
352
351
351
353
354
354
354
353
353
353
353
352
352
352
351
350

Wednesday 23

Waning Crescent 0%

04:02

20:44

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 OK
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:10, Set: 20:56, Transit: 13:02. Moon - Rise: 04:02, Set: 20:44. Civil Dark: 21:38 - 04:28. Nautical Dark: 22:36 - 03:30. Astro Dark: 00:12 - 01:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
81
61
45
47
47
49
52
51
54
65
61
50
67
70
64
42
51
68
82

Low Clouds (% Sky Obscured)

45
53
50
47
44
29
15
0
9
22
30
36
36
38
47
54
50
63
62
58
42
44
46
58

Medium Clouds (% Sky Obscured)

13
11
17
21
68
75
61
45
47
47
49
38
40
11
9
6
2
1
1
0
13
25
35
28

High Clouds (% Sky Obscured)

100
98
100
100
100
67
33
0
0
5
10
12
2
15
7
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

21
19
31
19
7
19
18
14
31
42
47
41
19
15
2
1
7
6
10
4
8
5
2
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

45
48
54
72
79
85
89
92
93
92
93
93
93
92
90
87
78
65
61
58
52
48
47
46

Pressure (mb)

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

Ozone (du)

349
347
344
343
340
339
338
340
342
343
343
342
340
340
342
345
345
343
340
338
336
337
334
336

Thursday 24

New Moon 1%

05:28

21:16

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

Sun - Rise: 05:11, Set: 20:54, Transit: 13:02. Moon - Rise: 05:28, Set: 21:16. Civil Dark: 21:36 - 04:29. Nautical Dark: 22:34 - 03:32. Astro Dark: 00:06 - 02:03

Total Clouds (% Sky Obscured)

74
60
49
47
41
57
75
91
65
31
25
25
11
1
10
19
21
39
54
61
52
58
62
64

Low Clouds (% Sky Obscured)

58
55
43
44
41
35
29
28
18
6
1
2
1
0
10
19
21
39
45
43
46
51
61
41

Medium Clouds (% Sky Obscured)

19
17
17
19
16
11
5
0
0
0
0
0
0
0
0
0
0
5
11
17
12
7
3
10

High Clouds (% Sky Obscured)

0
1
1
1
0
23
52
84
55
27
10
5
2
1
0
1
2
9
20
28
30
34
34
28

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 (%)

7
1
3
2
2
0
0
0
0
0
0
0
0
0
0
0
0
4
6
7
6
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)

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

Chance of Frost

Temperature (°C)

22
21
21
19
18
17
17
16
16
15
15
14
14
15
16
18
19
21
22
23
24
23
23
23

Feels Like (°C)

20
20
21
19
17
16
17
16
15
14
16
14
14
16
18
19
20
21
21
22
22
25
25
25

Dew Point (°C)

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

Relative Humidity (%)

50
55
57
69
76
73
72
69
67
70
82
86
90
89
81
72
66
59
55
51
48
50
54
56

Pressure (mb)

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

Ozone (du)

337
335
329
326
324
321
319
316
313
313
314
315
314
315
316
315
313
311
311
310
309
309
308
307

Friday 25

Waxing Crescent 4%

06:52

21:38

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

Sun - Rise: 05:12, Set: 20:53, Transit: 13:02. Moon - Rise: 06:52, Set: 21:38. Civil Dark: 21:34 - 04:31. Nautical Dark: 22:32 - 03:34. Astro Dark: 00:00 - 02:08

Total Clouds (% Sky Obscured)

69
74
76
77
76
69
64
56
51
50
49
35
20
6
19
33
49
50
48
49
54
51
51
53

Low Clouds (% Sky Obscured)

21
2
9
12
14
17
20
24
27
26
39
32
20
6
19
33
48
49
48
49
51
35
18
12

Medium Clouds (% Sky Obscured)

21
30
26
22
7
4
0
0
1
4
5
4
3
2
1
1
0
0
0
0
3
7
14
16

High Clouds (% Sky Obscured)

26
27
27
30
30
18
9
0
0
0
0
0
0
0
1
1
2
2
1
0
7
12
17
17

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
54
53
59
67
76
76
76
77
78
79
81
79
78
78
68
61
55
49
44
40
38
37
35

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1022
1022
1022
1023
1023
1023
1023
1022
1022
1022

Ozone (du)

306
304
303
302
301
300
299
299
299
299
299
298
299
299
300
300
300
300
298
297
296
295
295
294

Saturday 26

Waxing Crescent 9%

08:13

21:53

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

Sun - Rise: 05:14, Set: 20:51, Transit: 13:02. Moon - Rise: 08:13, Set: 21:53. Civil Dark: 21:33 - 04:33. Nautical Dark: 22:29 - 03:36. Astro Dark: 23:55 - 02:13

Total Clouds (% Sky Obscured)

60
82
86
90
90
80
65
55
45
40
35
35
31
27
31
34
40
56
71
89

Low Clouds (% Sky Obscured)

6
0
0
0
0
22
38
55
45
40
35
35
31
27
26
11
0
8
15
23

Medium Clouds (% Sky Obscured)

9
0
4
8
11
16
14
7
4
4
4
7
10
15
20
29
35
52
71
88

High Clouds (% Sky Obscured)

45
60
60
55
60
69
65
55
45
40
35
35
31
27
31
34
40
56
71
89

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 (%)

0
0
0
0
0
0
0
0
0
0
0
1
5
2
1
0
0
6
9
6

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)

8
6
5
3
3
4
3
4
4
4
4
4
4
4
5
7
10
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

36
37
37
43
50
59
59
58
59
60
62
63
63
63
63
59
58
55
49
45

Pressure (mb)

1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021

Ozone (du)

294
294
293
294
295
295
295
295
294
295
297
298
298
297
297
297
297
297
299
301

Forecast for Blean, Kent, United Kingdom (51.30,1.05)

Generated: 20/07/25 16:32:47. Forecast: 20/07/25 to 26/07/25. Timezone: UTC+1.00