Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 27

Waxing Gibbous 89%

17:35

03:23

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

Sun - Rise: 05:13, Set: 21:15, Transit: 13:15. Moon - Rise: 17:35, Set: 03:23. Civil Dark: 21:58 - 04:30. Nautical Dark: 22:58 - 03:29. Astro Dark: 01:04 - N/A

Total Clouds (% Sky Obscured)

0
39
27
28
0
0
0
80
60
71
100
100
48
23
100
100
100
100
94
72
100
95
100
100

Low Clouds (% Sky Obscured)

0
39
27
0
0
0
0
0
0
12
23
15
24
23
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
2
1
0
0
0
0
0
0
0
0
0
1
1
38
19
28
93
83
51
77
57
65
60

High Clouds (% Sky Obscured)

0
6
27
4
0
0
0
8
6
9
22
22
48
23
71
67
100
100
94
72
98
90
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
4
4
4
5
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
10
15
12
5
1
0
0
0
0
0
0
1
0
0
0
0
0
2
11
30
14

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)

19
18
15
12
9
8
7
6
5
5
6
6
5
5
5
5
8
11
12
13
14
15
15
13

Chance of Frost

Temperature (°C)

26
25
24
22
20
18
16
15
14
14
14
13
13
13
13
15
16
17
18
19
20
21
21
20

Feels Like (°C)

26
25
24
22
20
18
17
16
16
15
15
15
14
12
12
15
16
15
16
17
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

70
71
77
80
82
85
92
93
95
95
95
98
100
98
96
93
89
85
79
76
72
69
69
70

Pressure (mb)

1020
1020
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1021
1020

Ozone (du)

340
338
337
337
338
338
338
338
340
338
338
337
335
332
331
329
328
329
328
327
327
326
325
324

Thursday 28

Waxing Gibbous 95%

18:48

03:40

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

Sun - Rise: 05:12, Set: 21:16, Transit: 13:15. Moon - Rise: 18:48, Set: 03:40. Civil Dark: 21:59 - 04:29. Nautical Dark: 23:00 - 03:28. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
100
91
77
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
84
82
58
54

Low Clouds (% Sky Obscured)

0
0
0
50
37
20
0
23
19
29
58
67
73
80
85
66
75
66
56
0
32
51
18
20

Medium Clouds (% Sky Obscured)

72
44
26
32
23
11
33
48
51
68
57
96
87
86
100
96
98
100
100
77
53
46
37
34

High Clouds (% Sky Obscured)

97
98
100
76
63
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
64
57
0
0

ISS Passover

Visibility (miles)

9
8
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
1
1
1
0
0
0
0
1
2
16
19
4
1
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 (%)

19
18
10
8
14
7
2
3
20
2
2
1
1
1
0
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
77
84
90
93
95
93
93
93
95
95
96
96
95
92
84
75
67
63
61
60
60
60

Pressure (mb)

1020
1020
1020
1020
1021
1021
1021
1022
1022
1021
1021
1021
1021
1021
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024

Ozone (du)

325
337
333
331
330
330
328
328
326
325
323
324
326
324
323
322
325
326
327
330
334
336
339
339

Friday 29

Waxing Gibbous 98%

20:01

04:02

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

Sun - Rise: 05:11, Set: 21:17, Transit: 13:15. Moon - Rise: 20:01, Set: 04:02. Civil Dark: 22:00 - 04:28. Nautical Dark: 23:02 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

32
27
40
2
15
26
33
25
67
73
75
78
79
100
100
100
100
95
100
100
100
97
94
91

Low Clouds (% Sky Obscured)

0
0
40
0
0
13
16
0
53
60
60
56
45
37
55
53
57
56
60
51
59
62
64
71

Medium Clouds (% Sky Obscured)

23
16
0
0
0
0
0
0
0
0
0
0
0
18
16
52
70
82
74
45
40
61
73
83

High Clouds (% Sky Obscured)

0
1
2
2
15
26
33
25
50
50
60
71
72
100
99
100
100
79
100
100
96
83
63
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
9
9

Fog (%)

0
0
0
0
0
0
0
0
1
9
58
91
91
100
70
49
49
49
49
49
49
49
49
49

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
2
5
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
16
15
15
11
9
9
8
8
8
9
8
8
9
10
12
13
13
14
15
15
14
14

Dew Point (°C)

10
10
10
10
11
11
10
9
9
8
8
8
8
7
7
8
8
8
9
9
9
9
9
9

Relative Humidity (%)

61
62
65
72
82
90
91
90
91
90
88
90
90
88
85
80
74
69
67
66
61
58
60
61

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021

Ozone (du)

339
334
331
331
330
330
331
332
333
333
333
333
333
333
333
333
333
333
335
340
346
350
356
361

Saturday 30

Waxing Gibbous 100%

21:11

04:32

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

Sun - Rise: 05:11, Set: 21:18, Transit: 13:15. Moon - Rise: 21:11, Set: 04:32. Civil Dark: 22:02 - 04:27. Nautical Dark: 23:04 - 03:25. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

83
76
100
87
100
99
100
100
100
100
100
100
100
100
100
99
91
69
66
61
61
58
59
50

Low Clouds (% Sky Obscured)

77
76
100
87
92
87
80
73
65
66
68
71
74
80
85
86
80
69
66
61
61
58
59
50

Medium Clouds (% Sky Obscured)

33
12
2
11
20
29
24
22
15
29
43
95
96
97
98
91
62
23
23
23
25
21
19
14

High Clouds (% Sky Obscured)

2
0
0
23
36
50
55
90
100
100
100
100
100
100
29
20
11
4
2
0
0
0
1
2

ISS Passover

Visibility (miles)

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

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

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 (%)

8
7
0
3
6
5
17
9
14
4
4
3
7
10
10
11
15
14
13
16
12
11
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
11
11
12
11
12
12
12
12
12
12
11
12
12
12
12
12
12
12
12
12
12
12

Relative Humidity (%)

63
66
69
77
83
82
86
92
95
96
96
98
98
98
96
93
89
82
80
74
73
70
70
70

Pressure (mb)

1021
1021
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

366
368
368
369
370
366
355
348
344
341
340
339
341
342
342
343
342
345
342
339
338
336
336
336

Sunday 31

Full Moon 99%

22:15

05:11

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

Sun - Rise: 05:10, Set: 21:19, Transit: 13:15. Moon - Rise: 22:15, Set: 05:11. Civil Dark: 22:03 - 04:26. Nautical Dark: 23:05 - 03:23. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

51
62
49
53
46
99
100
76
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

51
50
49
53
46
79
87
76
94
100
100
100
97
95
92
97
99
100
97
94
91
92
95
100

Medium Clouds (% Sky Obscured)

9
5
0
9
16
59
53
51
60
55
51
45
72
94
93
68
47
41
63
84
100
100
100
100

High Clouds (% Sky Obscured)

27
53
49
53
46
59
58
34
16
27
29
33
55
79
100
100
100
100
99
99
97
98
99
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
0
0
0
0
0
0
0
0
0
0

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
7
1
0
0
1
1
1
1
3
4
3
14
42
83
55
52
48
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0.6
1.6
2.2
1.3
0.8
0.7

Wind Speed/Direction (mph)

16
16
15
14
12
11
10
10
10
10
11
12
12
12
14
16
18
19
19
19
19
20
19
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
73
79
84
90
90
90
95
89
89
90
93
96
96
96
98
98
98
98
96
98
98
98

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1015
1014
1013
1013
1012
1011
1011
1011
1011
1010
1010
1009

Ozone (du)

334
330
328
328
327
327
327
328
326
326
325
324
324
322
323
323
325
328
330
333
336
339
345
351

Monday 1

Waning Gibbous 97%

23:10

06:02

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

Sun - Rise: 05:09, Set: 21:20, Transit: 13:15. Moon - Rise: 23:10, Set: 06:02. Civil Dark: 22:04 - 04:25. Nautical Dark: 23:07 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
94
91
92
94
96
94
94
96
97
96
96
97
99
100
100
99
99
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

93
86
80
85
88
88
78
69
68
77
83
89
85
81
76
72
68
64
76
88
95
95
94
94

Medium Clouds (% Sky Obscured)

75
52
29
19
10
0
14
35
62
68
65
62
63
63
57
49
52
59
48
40
36
36
35
30

High Clouds (% Sky Obscured)

77
47
15
15
15
15
33
61
90
60
30
0
33
66
94
63
31
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
3
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
9

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

Precipitation Type

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

Precipitation Probability (%)

87
72
44
31
28
26
25
18
19
22
26
31
37
32
30
42
53
57
60
58
56
66
84
94

Precipitation Amount (mm)

0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.3
0.2
0.3
0.6
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
95
95
95
95
96
96
96
96
96
96
95
92
92
93
93
95
90
84
82
79
79

Pressure (mb)

1009
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1006
1006

Ozone (du)

356
360
364
368
372
375
378
381
384
387
392
397
402
399
395
391
390
389
388
389
390
390
387
384

Tuesday 2

Waning Gibbous 93%

23:53

07:05

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
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:09, Set: 21:21, Transit: 13:15. Moon - Rise: 23:53, Set: 07:05. Civil Dark: 22:05 - 04:25. Nautical Dark: 23:09 - 03:21. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
90
86
85
84
77
73
75
79
82
84
93
99
99
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

91
91
90
86
85
84
77
69
59
62
65
64
67
69
72
80
88
95
93
90
88

Medium Clouds (% Sky Obscured)

30
35
30
27
23
14
9
4
0
2
4
6
24
43
61
65
69
75
62
48
31

High Clouds (% Sky Obscured)

25
47
70
47
24
1
7
11
16
17
17
20
15
5
10
20
35
50
73
85
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
8
7
7
7
7
5
2
0
0
0

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

Precipitation Type

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

Precipitation Probability (%)

95
95
95
95
95
95
51
22
8
12
8
4
19
27
36
45
52
55
69
76
76

Precipitation Amount (mm)

1.4
2.1
4.1
1.4
0.8
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
84
89
92
93
95
92
90
88
90
95
98
96
96
96
96
98
98
98
98

Pressure (mb)

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

Ozone (du)

382
374
367
360
358
356
354
352
351
349
348
348
347
346
344
343
344
345
346
346
346

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

Generated: 27/05/26 16:33:57. Forecast: 27/05/26 to 02/06/26. Timezone: UTC+1.00