Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 96%

20:30

02:47

00 OK
01 Good
02 Good
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

Sun - Rise: 05:38, Set: 21:09, Transit: 13:24. Moon - Rise: 20:30, Set: 02:47. Civil Dark: 21:49 - 04:58. Nautical Dark: 22:43 - 04:04. Astro Dark: 00:04 - 02:48

Total Clouds (% Sky Obscured)

42
9
9
72
79
72
93
82
100
100
100
100
100
100
100
85
79
75
62
85
75
91
90
93

Low Clouds (% Sky Obscured)

39
31
34
44
44
44
72
86
93
82
85
66
49
56
54
52
51
53
50
57
64
81
83
81

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
2
2
3
9
10
11
14
19
34

High Clouds (% Sky Obscured)

0
0
0
0
1
43
51
18
2
0
1
0
0
1
1
1
1
1
1
31
8
25
50
51

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9
9
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
82
84
86
87
83
80
84
75
76
71
65
63
62
65
55
57
61
65
72
82
90
87
86

Pressure (mb)

1016
1017
1017
1017
1018
1018
1018
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022

Ozone (du)

324
324
324
324
324
325
326
326
326
328
328
328
327
327
327
326
325
323
324
324
324
322
321
321

Tuesday 28

Waxing Gibbous 97%

20:59

03:53

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

Sun - Rise: 05:40, Set: 21:08, Transit: 13:24. Moon - Rise: 20:59, Set: 03:53. Civil Dark: 21:48 - 05:00. Nautical Dark: 22:41 - 04:06. Astro Dark: 23:56 - 02:52

Total Clouds (% Sky Obscured)

91
100
71
92
95
98
95
99
96
97
97
92
93
100
89
39
20
7
5
35
0
1
19
18

Low Clouds (% Sky Obscured)

65
47
46
47
50
50
45
44
43
52
40
38
34
33
28
24
17
4
0
0
0
0
17
18

Medium Clouds (% Sky Obscured)

36
36
44
44
40
41
49
73
40
81
93
87
64
55
58
3
0
0
5
18
0
0
0
0

High Clouds (% Sky Obscured)

49
100
7
35
47
77
55
50
49
55
55
55
38
59
53
17
5
3
1
0
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
1
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
2
2
2
2
2
2
2
3
6
8
9
10
10
11
10
10
9
8
7
5
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
96
95
96
95
96
96
92
82
71
61
54
51
47
46
44
44
45
48
51
57
77
85
86

Pressure (mb)

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

Ozone (du)

319
317
317
317
319
320
320
320
321
322
322
320
319
322
323
323
322
322
324
325
328
327
327
329

Wednesday 29

Full Moon 100%

21:20

05:05

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

Sun - Rise: 05:41, Set: 21:06, Transit: 13:24. Moon - Rise: 21:20, Set: 05:05. Civil Dark: 21:46 - 05:02. Nautical Dark: 22:39 - 04:08. Astro Dark: 23:52 - 02:56

Total Clouds (% Sky Obscured)

40
35
46
50
45
46
50
47
60
66
48
60
50
63
64
50
44
80
81
91
48
58
64
73

Low Clouds (% Sky Obscured)

21
35
46
50
45
46
47
44
60
61
45
56
46
47
51
43
34
10
62
35
41
50
54
68

Medium Clouds (% Sky Obscured)

14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0

High Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
0
0
0
0
0
25
16
1
5
75
76
87
3
2
2
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
4

Fog (%)

0
54
67
98
100
100
100
98
57
8
2
2
2
1
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
1
2
2
3
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)

2
2
2
2
2
1
2
3
3
6
7
8
9
11
11
12
13
14
13
13
12
9
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
86
86
86
86
79
70
57
50
45
41
40
42
46
49
53
57
62
72
92
96
98

Pressure (mb)

1017
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

330
331
333
333
331
328
326
325
324
324
323
323
324
324
324
324
325
326
327
327
326
327
327
328

Thursday 30

Waning Gibbous 100%

21:37

06:20

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

Sun - Rise: 05:43, Set: 21:05, Transit: 13:24. Moon - Rise: 21:37, Set: 06:20. Civil Dark: 21:44 - 05:03. Nautical Dark: 22:37 - 04:10. Astro Dark: 23:48 - 02:59

Total Clouds (% Sky Obscured)

78
67
70
72
91
94
99
96
87
92
74
82
80
64
41
32
34
38
44
38
29
23
28
37

Low Clouds (% Sky Obscured)

73
63
66
70
87
79
91
73
70
86
74
82
80
54
36
29
32
38
44
38
29
23
28
37

Medium Clouds (% Sky Obscured)

0
0
0
0
22
34
32
29
2
0
0
21
45
21
1
2
0
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
0
2
0
11
83
98
55
30
30
30
25
8
5
0
0
0
0
0
0
0
0
0
10

ISS Passover

Visibility (miles)

4
8
4
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

7
6
1
0
4
12
19
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22

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
3
5
3
6
8
11
10
10
22
24
10
2
1
1
0
0
0
0
0
0
0
0
2

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
6
6
7
7
7
8
9
10
11
10
11
12
15
15
15
15
14
14
11
8
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
98
98
95
95
95
90
85
78
79
79
68
52
43
42
41
42
50
57
67
86
92
92

Pressure (mb)

1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019

Ozone (du)

327
328
330
331
331
330
330
330
329
331
333
333
336
338
340
344
347
349
353
352
351
351
351
351

Friday 31

Waning Gibbous 98%

21:52

07:35

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

Sun - Rise: 05:44, Set: 21:03, Transit: 13:24. Moon - Rise: 21:52, Set: 07:35. Civil Dark: 21:42 - 05:05. Nautical Dark: 22:35 - 04:13. Astro Dark: 23:44 - 03:03

Total Clouds (% Sky Obscured)

40
41
41
42
44
52
55
64
75
86
66
46
29
40
46
48
37
31
22
19
16
11
11
12

Low Clouds (% Sky Obscured)

40
41
34
33
32
30
31
30
31
34
28
23
16
15
13
12
13
15
17
11
6
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
2
0
0
1
3
1
2
4
3
3
4
3
1

High Clouds (% Sky Obscured)

0
0
0
0
0
14
10
28
43
62
43
24
10
17
29
39
27
14
3
1
2
0
2
12

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 (%)

22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22

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
1
2
0
0
0
0
0
1
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)

5
4
4
4
5
5
4
4
5
7
9
9
10
12
13
13
14
13
12
11
9
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
10
10
9
9
9
9
9
8
7
7
6
5
3
3
3
3
3
5
6
8
8
8

Relative Humidity (%)

92
92
92
90
88
88
88
84
75
64
51
50
43
39
34
33
34
36
39
46
54
76
84
87

Pressure (mb)

1019
1020
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022

Ozone (du)

351
349
355
353
347
340
338
339
337
336
336
337
338
338
339
340
340
342
342
342
340
338
338
336

Saturday 1

Waning Gibbous 94%

22:04

08:49

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

Sun - Rise: 05:46, Set: 21:02, Transit: 13:24. Moon - Rise: 22:04, Set: 08:49. Civil Dark: 21:41 - 05:06. Nautical Dark: 22:32 - 04:15. Astro Dark: 23:41 - 03:06

Total Clouds (% Sky Obscured)

14
35
52
67
59
49
32
61
70
71
79
87
95
92
88
84
84
86
87
91
95
99
97
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
7
11
19
27
36
37
39
41
38
33
27
16
8
0
0
0

Medium Clouds (% Sky Obscured)

0
5
9
14
12
11
6
10
10
9
17
20
22
21
16
11
9
11
12
30
47
59
67
74

High Clouds (% Sky Obscured)

14
35
52
53
51
49
12
11
18
26
26
28
34
36
37
37
44
48
47
64
80
98
77
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
9
9
9

Fog (%)

22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22

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
1
1
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)

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

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
12
14
16
19
19
20
21
20
20
20
19
18
17
15
14
12
12

Feels Like (°C)

9
8
8
8
9
8
9
13
13
14
15
16
17
18
19
18
16
17
17
17
12
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

88
90
90
91
91
90
91
87
71
59
48
44
42
39
38
39
38
43
49
55
62
74
86
89

Pressure (mb)

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

Ozone (du)

335
335
336
338
339
338
338
340
339
338
338
338
338
338
337
336
335
335
335
336
335
335
334
335

Sunday 2

Waning Gibbous 88%

22:16

10:04

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
23 Bad

Sun - Rise: 05:47, Set: 21:00, Transit: 13:23. Moon - Rise: 22:16, Set: 10:04. Civil Dark: 21:39 - 05:08. Nautical Dark: 22:30 - 04:17. Astro Dark: 23:37 - 03:10

Total Clouds (% Sky Obscured)

92
93
95
97
93
90
86
88
90
89
87
85
80
79
82
84
84
83
83
87
93
97
99
100

Low Clouds (% Sky Obscured)

0
6
11
17
11
6
0
0
0
0
0
0
0
16
30
52
32
16
0
6
13
21
15
10

Medium Clouds (% Sky Obscured)

81
75
65
49
50
54
59
47
35
25
29
30
30
27
27
23
18
12
6
2
3
8
8
17

High Clouds (% Sky Obscured)

31
52
70
88
79
69
59
59
58
58
54
52
46
48
51
55
57
58
58
71
82
91
88
88

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 (%)

22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22
22

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
1
1
1
1
1
0
0
0
0
0
0
0
3
4
2
19
25
28
21
4
16
12
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
9
9
9
9
9
9
12
12
12
13
14
15
24
23
23
22
22
21
21
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

89
92
92
92
90
86
81
77
60
47
37
32
28
23
25
25
26
28
29
30
40
51
67
65

Pressure (mb)

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

Ozone (du)

335
336
335
335
334
334
335
335
335
335
335
334
333
332
330
327
325
325
325
325
325
325
326
327

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

Generated: 27/07/26 15:10:41. Forecast: 27/07/26 to 02/08/26. Timezone: UTC+1.00