Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 12

Waning Gibbous 95%

22:35

07:40

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

Sun - Rise: 05:02, Set: 21:14, Transit: 13:08. Moon - Rise: 22:35, Set: 07:40. Civil Dark: 21:58 - 04:18. Nautical Dark: 23:03 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
2
5
0
20
32
36
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14

Low Clouds (% Sky Obscured)

0
0
2
5
0
20
32
36
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
2
5
0
0
1
3
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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
4
5
7
8
9
9
10
10
11
11
11
9
6
4
3
3
3
3
3
4
4
4
5

Chance of Frost

Temperature (°C)

21
23
25
26
27
28
29
29
29
29
28
27
25
23
20
19
18
17
16
16
15
15
15
16

Feels Like (°C)

22
23
25
26
27
27
28
28
28
27
26
25
24
22
20
19
17
16
17
16
16
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

54
49
47
41
34
30
29
27
26
28
31
37
41
47
55
59
63
69
78
78
78
82
78
66

Pressure (mb)

1018
1018
1017
1017
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013

Ozone (du)

326
326
327
330
333
332
333
332
332
330
330
331
332
333
335
336
337
338
339
340
338
336
336
334

Sunday 13

Waning Gibbous 89%

22:51

No Set

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

Sun - Rise: 05:03, Set: 21:13, Transit: 13:08. Moon - Rise: 22:51, Set: No Set. Civil Dark: 21:57 - 04:19. Nautical Dark: 23:02 - 03:16. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

13
35
39
49
80
91
87
88
91
78
42
34
100
100
100
100
100
98
69
36
65
49
77
44

Low Clouds (% Sky Obscured)

0
0
0
0
42
81
76
70
19
55
7
5
42
64
72
64
70
59
0
0
48
0
64
44

Medium Clouds (% Sky Obscured)

4
12
16
20
23
25
25
29
42
26
18
16
34
40
80
72
67
78
39
20
16
19
9
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
25
34
100
100
100
100
99
75
2
0
0
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
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
1
1
1
12
10
12
4
7
23
7
2
4
2
1
1
0
2
1
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)

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

Chance of Frost

Temperature (°C)

18
20
22
23
25
25
26
26
27
27
27
26
25
23
22
21
20
19
19
18
16
16
17
18

Feels Like (°C)

18
20
22
24
25
26
26
25
25
25
28
26
23
21
20
19
18
17
17
18
18
17
18
19

Dew Point (°C)

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

Relative Humidity (%)

55
52
51
47
44
40
39
41
45
43
38
37
39
47
52
53
51
55
67
77
83
86
82
74

Pressure (mb)

1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1012

Ozone (du)

331
331
330
330
331
333
331
329
327
326
326
326
326
327
328
330
333
337
343
339
338
336
334
331

Monday 14

Waning Gibbous 80%

23:05

09:03

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

Sun - Rise: 05:05, Set: 21:12, Transit: 13:08. Moon - Rise: 23:05, Set: 09:03. Civil Dark: 21:56 - 04:21. Nautical Dark: 23:00 - 03:18. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

43
45
42
37
74
86
92
40
15
15
84
80
72
38
34
26
0
0
0
0
2
5
7
29

Low Clouds (% Sky Obscured)

43
42
42
31
44
21
48
13
0
1
65
74
64
37
34
26
0
0
0
0
2
5
7
19

Medium Clouds (% Sky Obscured)

0
3
0
0
16
20
15
7
0
0
54
11
11
0
0
0
0
0
0
0
0
0
0
15

High Clouds (% Sky Obscured)

0
0
0
0
0
2
24
2
15
15
25
25
2
0
0
0
0
0
0
0
0
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
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
1
1
1
1
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
11
12
14
15
16
17
20
19
18
18
16
14
12
10
9
7
6
5
6
6
6
5
7

Chance of Frost

Temperature (°C)

20
21
22
23
24
25
25
24
24
24
23
22
21
19
17
16
15
13
13
12
11
12
12
13

Feels Like (°C)

20
20
21
22
21
21
22
19
20
19
18
17
16
16
14
14
14
13
13
12
11
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

66
51
46
43
41
31
29
34
36
38
42
44
46
54
57
68
78
87
87
89
92
92
90
76

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1018

Ozone (du)

331
331
330
330
332
334
339
338
339
343
344
344
345
346
348
350
350
354
355
358
356
357
356
351

Tuesday 15

Waning Gibbous 70%

23:17

10:25

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 OK
22 OK
23 OK
00 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:06, Set: 21:11, Transit: 13:08. Moon - Rise: 23:17, Set: 10:25. Civil Dark: 21:55 - 04:22. Nautical Dark: 22:58 - 03:20. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

49
70
86
93
100
100
100
100
95
91
86
68
52
40
37
37
39
41
43
45
63
80
99
77

Low Clouds (% Sky Obscured)

30
41
45
49
53
62
67
73
69
64
60
54
50
30
30
37
39
41
43
45
53
49
35
30

Medium Clouds (% Sky Obscured)

33
50
61
73
80
65
45
52
95
89
70
68
52
40
37
35
29
31
33
40
40
40
38
35

High Clouds (% Sky Obscured)

0
1
15
15
20
20
1
17
19
2
20
13
1
3
3
12
23
4
6
25
49
51
73
51

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
5
9
6

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

Precipitation Probability (%)

1
1
13
20
28
46
60
67
63
62
48
45
35
6
9
8
0
3
15
29
52
30
9
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
50
40
36
33
40
41
42
45
44
49
45
47
52
61
74
69
78
87
90
93
95
95
96

Pressure (mb)

1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

348
343
340
339
337
334
331
328
327
326
321
319
316
314
313
310
306
302
300
298
297
296
298
298

Wednesday 16

Waning Gibbous 59%

23:29

11:47

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 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:07, Set: 21:10, Transit: 13:08. Moon - Rise: 23:29, Set: 11:47. Civil Dark: 21:54 - 04:24. Nautical Dark: 22:56 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

56
35
41
44
53
68
83
97
65
33
0
44
32
15
26
31
40
53
66
79
75
72
71
65

Low Clouds (% Sky Obscured)

29
28
31
37
44
37
31
25
17
8
0
31
15
0
13
27
40
51
63
74
72
72
71
65

Medium Clouds (% Sky Obscured)

40
3
40
35
30
35
39
23
35
30
0
12
24
15
26
31
40
51
51
48
41
44
51
64

High Clouds (% Sky Obscured)

39
6
9
25
29
33
55
71
65
33
0
32
26
15
24
19
10
18
25
33
22
18
25
34

ISS Passover

Visibility (miles)

0
9
9
9
9
9
5
9
9
4
4
3
5
7
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
15
18
62
27
42
36
22
35
48
50
55
44
28
22
16
6
10
9
4
7
9
5
18

Precipitation Amount (mm)

0
0
0
0.3
0
0
0
0
0
0.3
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
93
86
91
95
95
94
94
87
81
85
91
92
93
95
95
96
96
95
93
93
92
92
92

Pressure (mb)

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

Ozone (du)

299
301
301
299
300
302
303
304
306
307
307
307
308
310
311
313
316
318
316
313
310
309
307
306

Thursday 17

Waning Gibbous 48%

23:43

13:10

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:08, Set: 21:09, Transit: 13:08. Moon - Rise: 23:43, Set: 13:10. Civil Dark: 21:52 - 04:25. Nautical Dark: 22:54 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

62
61
70
84
97
97
97
97
93
89
85
86
87
87
84
83
84
85
88
92
73
56
40
39

Low Clouds (% Sky Obscured)

59
54
55
55
54
51
47
45
49
55
64
52
43
34
23
11
0
0
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

62
61
70
80
83
83
75
73
71
77
85
77
71
61
46
26
7
14
24
34
26
15
8
7

High Clouds (% Sky Obscured)

35
40
49
66
87
89
89
89
60
30
9
27
49
62
60
58
59
60
57
58
40
28
27
31

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

25
29
39
47
52
61
70
78
72
60
51
43
32
13
10
5
0
0
0
0
0
1
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
77
73
73
72
72
76
82
89
91
92
93
95
95
96
96
95
93
93
93
95
93
93
90

Pressure (mb)

1014
1014
1014
1014
1013
1013
1013
1013
1012
1012
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1015
1015

Ozone (du)

305
305
304
304
305
305
309
313
317
319
322
324
324
324
323
324
325
326
326
326
327
328
328
329

Friday 18

Third Quarter 36%

23:59

14:37

08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:10, Set: 21:08, Transit: 13:08. Moon - Rise: 23:59, Set: 14:37. Civil Dark: 21:51 - 04:27. Nautical Dark: 22:52 - 03:26. Astro Dark: N/A - 01:26

Total Clouds (% Sky Obscured)

35
32
28
25
22
28
40
51
69
88
99
99
99
99
93
87
75

Low Clouds (% Sky Obscured)

1
1
1
2
2
5
8
11
10
10
26
39
49
61
68
70
72

Medium Clouds (% Sky Obscured)

6
6
5
5
5
6
6
7
36
62
91
64
39
16
15
9
3

High Clouds (% Sky Obscured)

31
31
28
25
22
27
22
13
36
63
89
92
95
97
77
59
40

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
2
5
7
3
5
0
0
0
0
2
1
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
8
7
7
7
8
9
10
11
11
11
10
9
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
15
16
16
17
17
23
22
21
21
22
22
16
16
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

81
71
63
53
45
38
36
34
32
36
40
45
46
48
50
58
66

Pressure (mb)

1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1014
1014
1014
1014

Ozone (du)

329
329
329
329
329
330
330
330
330
332
334
337
339
341
343
342
342

Forecast for Guildford, Surrey, United Kingdom (51.24,-0.57)

Generated: 12/07/25 08:58:17. Forecast: 12/07/25 to 18/07/25. Timezone: UTC+1.00