Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 97%

20:30

03:53

09 Bad
10 Bad
11 Bad
12 Bad
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
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

Sun - Rise: 05:40, Set: 21:09, Transit: 13:24. Moon - Rise: 20:30, Set: 03:53. Civil Dark: 21:49 - 05:00. Nautical Dark: 22:43 - 04:06. Astro Dark: 00:00 - 02:52

Total Clouds (% Sky Obscured)

98
91
94
74
43
46
51
68
45
40
63
73
91
91
75
87
100
95
83
87
95
96
93
95

Low Clouds (% Sky Obscured)

84
89
56
51
40
42
43
60
40
35
49
58
58
59
57
53
46
44
45
44
48
53
48
51

Medium Clouds (% Sky Obscured)

0
0
0
0
1
0
2
2
3
2
4
5
11
33
35
35
37
40
34
40
75
83
86
90

High Clouds (% Sky Obscured)

1
1
1
0
1
2
2
2
2
0
13
35
77
50
13
39
100
50
39
41
57
50
35
19

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
7
7
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)

11
11
12
11
12
12
13
14
13
13
11
11
8
6
5
3
2
1
2
2
2
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
68
61
53
51
52
53
55
60
65
71
80
95
96
98
98
98
96
96
95
93
95
90
82

Pressure (mb)

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

Ozone (du)

328
328
328
327
327
327
327
326
324
324
324
323
322
321
320
319
317
317
317
317
319
321
321
322

Tuesday 28

Waxing Gibbous 100%

20:59

05:05

09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
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 OK
04 OK
05 OK
06 OK
07 OK
08 OK

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

Total Clouds (% Sky Obscured)

92
97
98
99
95
67
27
15
2
1
1
0
0
0
0
0
18
0
32
35
37
40
22
42

Low Clouds (% Sky Obscured)

50
48
41
36
32
23
20
14
0
0
0
0
0
0
0
0
0
0
29
32
34
37
16
37

Medium Clouds (% Sky Obscured)

83
92
96
95
66
7
0
0
1
1
0
0
0
0
0
0
11
0
0
0
0
0
3
0

High Clouds (% Sky Obscured)

6
30
28
47
52
40
8
2
2
1
1
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
54
100
100
100
100
97
79

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)

6
8
9
10
10
10
10
10
10
9
8
5
2
2
2
2
2
2
1
1
1
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
61
55
51
48
45
43
43
46
48
52
57
78
83
86
87
87
86
86
86
84
84
78
67

Pressure (mb)

1020
1020
1020
1020
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

321
321
320
319
321
322
321
321
321
321
323
326
328
329
330
331
331
329
329
328
326
327
328
328

Wednesday 29

Full Moon 100%

21:20

06:20

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

Sun - Rise: 05:43, Set: 21:06, Transit: 13:24. Moon - Rise: 21:20, Set: 06:20. Civil Dark: 21:46 - 05:03. Nautical Dark: 22:39 - 04:10. Astro Dark: 23:52 - 02:59

Total Clouds (% Sky Obscured)

44
60
68
69
66
60
64
60
32
75
60
30
68
48
74
80
79
68
56
77
99
100
98
92

Low Clouds (% Sky Obscured)

38
49
60
60
62
52
55
47
30
27
50
27
34
38
58
66
67
57
48
52
62
74
70
65

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
12

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
2
0
60
4
4
65
7
15
25
34
13
4
49
97
100
94
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
4
9
9
9
9
4
4
7
9

Fog (%)

9
4
3
2
0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
3
3
3
3
3

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
2
2
0
0
0
0
0
0
0
0
0
1
0
3
4
6
10
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)

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

Chance of Frost

Temperature (°C)

20
22
23
25
25
25
24
23
22
22
20
19
16
15
15
15
15
15
14
14
15
15
16
17

Feels Like (°C)

22
24
24
25
25
25
24
22
21
21
19
18
17
17
16
16
15
15
16
16
15
15
16
16

Dew Point (°C)

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

Relative Humidity (%)

56
49
43
40
40
42
44
49
55
59
65
71
92
96
98
98
98
96
96
96
100
98
96
89

Pressure (mb)

1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1015

Ozone (du)

328
329
327
327
328
327
325
326
327
328
329
331
331
332
332
333
333
333
334
332
333
336
337
335

Thursday 30

Waning Gibbous 98%

21:37

07:35

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 OK
05 OK
06 OK
07 OK
08 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)

96
97
99
100
100
100
100
100
100
100
100
100
100
81
61
41
38
39
39
29
19
8
19
30

Low Clouds (% Sky Obscured)

64
68
71
70
66
61
53
48
45
39
34
26
23
22
22
23
21
21
23
19
12
6
14
26

Medium Clouds (% Sky Obscured)

10
7
1
1
3
41
52
55
50
42
49
55
35
3
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

91
94
97
100
99
100
100
100
100
100
100
100
100
73
43
10
10
5
5
5
2
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 (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

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 (%)

26
29
35
36
23
9
0
1
1
0
0
0
0
0
1
1
3
4
2
3
9
3
5
17

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
68
63
63
63
55
55
55
61
61
63
67
74
84
93
92
92
90
93
91
91
90
83
68

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020

Ozone (du)

335
335
335
336
334
334
334
334
335
335
336
336
337
339
342
343
344
347
350
351
352
355
354
356

Friday 31

Waning Gibbous 94%

21:52

08:49

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

49
40
34
32
34
34
33
35
36
37
53
72
90
83
77
71
59
47
37
52
61
71
68
69

Low Clouds (% Sky Obscured)

49
38
28
28
24
20
16
19
21
25
17
8
0
0
0
0
0
0
0
0
0
0
4
7

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
1
2
0
4
10
16

High Clouds (% Sky Obscured)

0
0
0
0
4
7
11
10
9
8
27
46
65
60
47
41
38
34
36
23
8
1
10
20

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 (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

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 (%)

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

9
11
11
12
13
14
14
14
14
13
12
10
6
4
4
4
3
3
3
3
3
3
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
57
48
44
42
39
39
40
43
48
53
59
79
85
88
88
88
90
90
88
88
87
86
71

Pressure (mb)

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

Ozone (du)

357
357
357
357
357
356
357
357
357
358
356
354
353
350
346
343
342
341
340
339
338
337
336
335

Saturday 1

Waning Gibbous 88%

22:04

No Set

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
08 Bad

Sun - Rise: 05:47, Set: 21:02, Transit: 13:24. Moon - Rise: 22:04, Set: No Set. Civil Dark: 21:41 - 05:08. Nautical Dark: 22:32 - 04:17. Astro Dark: 23:41 - 03:10

Total Clouds (% Sky Obscured)

67
78
88
95
93
90
89
89
90
90
94
98
100
98
97
95
95
96
97
94
91
87
89
92

Low Clouds (% Sky Obscured)

11
19
27
36
37
39
41
34
35
27
18
9
0
0
0
0
5
9
16
11
6
0
0
0

Medium Clouds (% Sky Obscured)

21
32
40
45
42
44
42
40
27
21
17
18
24
25
30
28
32
31
35
28
30
35
58
68

High Clouds (% Sky Obscured)

29
24
20
16
15
15
35
46
51
43
58
81
100
80
60
27
46
62
84
74
65
55
62
69

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 (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

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 (%)

1
3
5
2
5
4
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
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
5
6
8
9
10
11
12
11
11
11
9
8
6
6
6
5
5
5
5
5
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
15
16
17
19
18
17
17
17
17
12
12
13
12
11
11
9
9
10
9
9
9
12

Dew Point (°C)

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

Relative Humidity (%)

61
51
47
44
41
41
40
40
45
50
56
65
75
86
87
89
90
90
92
92
84
80
74
56

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

334
333
332
332
331
331
331
331
331
332
332
332
331
331
330
330
330
331
331
331
332
333
334
334

Sunday 2

Waning Gibbous 80%

22:16

10:04

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

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)

94
92
91
90
93
97
100
99
97
96
97
99
100
100
99
94
83
76
71
77
84
89

Low Clouds (% Sky Obscured)

0
0
0
0
22
43
65
43
22
0
8
15
22
15
7
2
1
0
0
4
9
15

Medium Clouds (% Sky Obscured)

84
70
58
45
43
41
26
23
16
9
8
6
15
30
50
50
52
54
56
57
54
55

High Clouds (% Sky Obscured)

74
65
52
37
33
34
31
30
21
27
52
70
88
84
81
79
65
52
34
43
42
40

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

Fog (%)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

Precipitation Type

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
3
4
2
21
29
33
24
4
19
15
8
1
1
1
0
2
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
13
13
14
15
23
23
22
21
20
20
19
20
21
20
19
17
13
13
14
13
12

Dew Point (°C)

5
3
2
2
1
1
2
2
2
1
-0
3
7
10
9
8
7
7
6
6
7
8

Relative Humidity (%)

43
33
29
26
23
23
24
25
26
27
27
38
51
68
65
60
57
56
54
53
57
62

Pressure (mb)

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

Ozone (du)

334
334
333
333
332
331
330
329
329
329
329
328
327
326
326
326
327
326
325
325
324
324

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

Generated: 27/07/26 09:43:22. Forecast: 27/07/26 to 02/08/26. Timezone: UTC+1.00