Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waning Gibbous 98%

21:37

07:35

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

Sun - Rise: 05:44, Set: 21:05, Transit: 13:24. Moon - Rise: 21:37, Set: 07:35. Civil Dark: 21:44 - 05:05. Nautical Dark: 22:37 - 04:13. Astro Dark: 23:48 - 03:03

Total Clouds (% Sky Obscured)

100
100
99
70
60
27
29
33
46
38
31
72
65
51
23
29
32
34
19
6
0
0
14
42

Low Clouds (% Sky Obscured)

82
69
71
66
59
27
29
30
28
21
16
18
19
24
23
29
32
34
19
6
0
0
12
12

Medium Clouds (% Sky Obscured)

76
59
35
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

24
28
2
1
0
0
0
0
21
22
15
57
55
37
0
0
0
0
0
0
0
0
2
42

ISS Passover

Visibility (miles)

9
9
8
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
2
3
3
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)

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

Chance of Frost

Temperature (°C)

18
17
17
18
18
19
19
18
18
17
15
13
12
12
12
12
12
11
11
11
11
12
15
17

Feels Like (°C)

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

Dew Point (°C)

13
15
15
15
14
10
8
6
6
6
8
10
11
11
11
10
10
10
10
10
10
10
11
8

Relative Humidity (%)

73
86
89
83
74
55
47
45
46
49
59
82
90
92
92
92
92
92
92
91
93
87
75
58

Pressure (mb)

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

Ozone (du)

337
339
340
342
343
344
345
345
344
344
345
347
350
353
355
355
357
358
359
360
360
359
355
352

Friday 31

Waning Gibbous 94%

21:52

08:49

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

Sun - Rise: 05:46, Set: 21:03, Transit: 13:24. Moon - Rise: 21:52, Set: 08:49. Civil Dark: 21:42 - 05:06. Nautical Dark: 22:35 - 04:15. Astro Dark: 23:44 - 03:06

Total Clouds (% Sky Obscured)

45
40
30
30
30
24
12
12
27
77
85
25
100
100
100
93
81
85
82
4
0
1
3
55

Low Clouds (% Sky Obscured)

15
5
0
0
0
0
0
0
0
0
0
0
0
0
0
18
15
0
18
3
0
0
0
45

Medium Clouds (% Sky Obscured)

0
0
30
30
30
24
12
3
0
0
0
0
0
0
15
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

45
40
30
30
30
24
12
12
27
77
85
25
100
100
100
91
72
68
53
1
0
1
3
1

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)

10
10
11
12
12
12
13
13
13
12
10
7
5
4
4
4
4
4
3
2
2
2
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
42
39
35
36
37
38
39
45
51
61
79
87
88
88
87
88
88
88
91
90
87
73
58

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1020
1021
1021
1021
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

351
349
347
347
346
346
345
343
340
339
338
338
339
338
338
337
338
340
341
339
337
338
336
333

Saturday 1

Waning Gibbous 88%

22:04

10:04

10 OK
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
08 Bad
09 Bad

Sun - Rise: 05:47, Set: 21:02, Transit: 13:24. Moon - Rise: 22:04, Set: 10:04. Civil Dark: 21:41 - 05:08. Nautical Dark: 22:32 - 04:17. Astro Dark: 23:41 - 03:10

Total Clouds (% Sky Obscured)

32
58
92
66
74
78
65
71
80
85
91
96
97
99
100
100
100
99
98
99
98
98
98
98

Low Clouds (% Sky Obscured)

27
32
49
29
39
40
32
22
27
18
9
0
5
12
18
12
6
0
0
0
1
0
7
17

Medium Clouds (% Sky Obscured)

0
34
40
19
0
19
3
3
2
17
35
94
95
86
79
90
92
81
79
86
95
67
98
98

High Clouds (% Sky Obscured)

2
2
24
25
31
33
42
53
64
72
81
90
92
96
100
100
100
87
74
95
94
93
92
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
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
1
1
1
4
5
5
6
7
7

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

Chance of Frost

Temperature (°C)

18
19
20
21
21
21
20
19
18
17
16
14
13
12
12
12
12
12
12
12
12
13
15
17

Feels Like (°C)

18
18
19
18
17
17
16
15
15
14
13
12
11
11
10
10
10
11
11
10
11
12
14
15

Dew Point (°C)

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

Relative Humidity (%)

48
41
38
35
35
35
36
38
43
51
65
84
87
89
83
83
76
75
83
84
81
69
51
45

Pressure (mb)

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

Ozone (du)

331
330
330
329
328
329
328
328
327
326
326
326
326
325
325
325
325
325
326
327
329
329
329
329

Sunday 2

Waning Gibbous 80%

22:16

10:04

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
08 Bad
09 Bad

Sun - Rise: 05:48, Set: 21:00, Transit: 13:23. Moon - Rise: 22:16, Set: 10:04. Civil Dark: 21:39 - 05:10. Nautical Dark: 22:30 - 04:19. Astro Dark: 23:37 - 03:13

Total Clouds (% Sky Obscured)

99
99
100
100
99
99
86
73
57
68
71
83
78
83
84
92
92
94
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

36
42
30
24
20
21
14
7
0
15
29
44
29
15
0
6
13
21
35
47
64
68
73
81

Medium Clouds (% Sky Obscured)

99
99
78
91
99
89
52
47
34
38
37
36
36
35
38
38
36
37
40
41
38
67
33
82

High Clouds (% Sky Obscured)

89
89
89
63
33
6
4
7
10
39
63
83
78
83
83
83
63
71
100
100
100
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
Very Light Rain
Light Rain

Precipitation Probability (%)

9
8
5
7
7
6
7
6
4
3
2
0
4
5
6
22
30
35
32
27
23
48
68
86

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
0.2
0.5

Wind Speed/Direction (mph)

3
4
5
5
7
7
8
8
9
8
5
2
3
4
4
3
3
3
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
18
19
19
19
20
20
19
19
19
17
15
14
14
14
13
13
13
12
12
13
15
17

Dew Point (°C)

5
4
4
3
3
4
4
4
4
4
6
7
6
5
4
2
2
2
4
6
7
6
5
3

Relative Humidity (%)

41
37
33
29
28
29
29
29
31
33
41
55
53
50
47
43
42
45
51
60
62
54
44
36

Pressure (mb)

1017
1016
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1012
1012
1012
1011
1011
1010
1009
1009
1009
1008
1008

Ozone (du)

329
329
330
329
330
332
334
336
336
335
331
331
332
330
329
326
325
325
326
325
325
325
326
326

Monday 3

Waning Gibbous 71%

22:30

11:20

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
08 Bad
09 Bad

Sun - Rise: 05:50, Set: 20:58, Transit: 13:23. Moon - Rise: 22:30, Set: 11:20. Civil Dark: 21:37 - 05:11. Nautical Dark: 22:28 - 04:21. Astro Dark: 23:34 - 03:16

Total Clouds (% Sky Obscured)

100
100
100
98
97
96
92
88
82
87
91
96
93
92
91
90
89
88
91
93
95
96
97
98

Low Clouds (% Sky Obscured)

83
81
78
77
67
66
59
60
71
79
84
89
88
86
85
83
81
79
83
85
85
83
81
78

Medium Clouds (% Sky Obscured)

94
91
84
85
87
88
74
63
47
60
75
92
72
53
34
33
31
31
32
26
17
15
15
25

High Clouds (% Sky Obscured)

100
100
100
83
67
60
34
10
0
0
0
0
0
0
0
1
5
24
35
43
39
47
58
64

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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

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

Precipitation Probability (%)

86
81
64
95
73
18
23
19
9
13
18
20
65
88
95
91
74
54
45
36
22
39
51
62

Precipitation Amount (mm)

0.5
0.4
0
0.6
0.4
0
0
0
0
0
0
0
0.3
0.6
0.9
0.6
0.4
0.2
0
0
0
0
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
20
21
21
21
22
22
23
23
23
16
16
15
15
14
14
14
14
15
15
15
14
16
16

Dew Point (°C)

2
1
0
1
3
4
6
7
8
9
10
11
12
12
12
12
12
12
13
13
13
13
13
13

Relative Humidity (%)

30
25
22
22
24
27
30
36
42
49
57
68
79
80
82
83
82
83
85
86
85
85
78
72

Pressure (mb)

1008
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1005
1005
1005

Ozone (du)

328
329
329
330
330
330
329
330
331
332
332
332
332
331
331
330
332
334
335
336
336
337
338
339

Tuesday 4

Waning Gibbous 60%

22:45

12:39

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 Good
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:51, Set: 20:57, Transit: 13:23. Moon - Rise: 22:45, Set: 12:39. Civil Dark: 21:35 - 05:13. Nautical Dark: 22:26 - 04:23. Astro Dark: 23:30 - 03:20

Total Clouds (% Sky Obscured)

98
99
100
97
95
93
96
98
100
99
98
97
98
99
100
70
40
10
28
45
62
62
63
63

Low Clouds (% Sky Obscured)

81
84
86
88
89
93
96
98
100
99
97
96
84
72
61
44
27
10
28
45
62
60
58
58

Medium Clouds (% Sky Obscured)

17
10
0
3
6
11
13
19
29
43
28
28
24
29
30
20
10
0
0
1
1
13
26
35

High Clouds (% Sky Obscured)

70
67
80
53
30
0
1
2
3
6
8
9
27
42
53
34
24
10
17
20
19
15
14
13

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

Very Light Rain
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

Precipitation Probability (%)

55
39
12
15
15
14
21
20
21
39
54
73
66
54
28
24
17
6
9
13
15
18
18
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
12
12
13
13
14
15
14
14
13
13
13
14
13
13
12
10
9
7
7
6
6
8
9

Chance of Frost

Temperature (°C)

18
19
19
19
19
19
19
18
17
16
15
15
14
14
13
13
13
12
12
12
11
11
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
63
61
59
58
58
58
63
68
72
79
86
93
92
90
87
83
79
75
76
80
83
77
71

Pressure (mb)

1006
1007
1007
1008
1008
1009
1009
1010
1011
1012
1013
1014
1014
1015
1016
1016
1017
1017
1017
1018
1018
1019
1019
1019

Ozone (du)

340
340
340
340
338
337
335
335
335
335
334
333
332
330
328
326
326
325
324
323
323
322
322
323

Wednesday 5

Waning Gibbous 48%

23:04

14:01

Sun - Rise: 05:53, Set: 20:55, Transit: 13:23. Moon - Rise: 23:04, Set: 14:01. Civil Dark: 21:33 - 05:15. Nautical Dark: 22:23 - 04:25. Astro Dark: 23:27 - 03:23

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 Upton, Cornwall, United Kingdom (50.54,-4.43)

Generated: 30/07/26 10:35:27. Forecast: 30/07/26 to 05/08/26. Timezone: UTC+1.00