Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 26

Waxing Gibbous 82%

16:24

03:04

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

Sun - Rise: 05:03, Set: 21:21, Transit: 13:13. Moon - Rise: 16:24, Set: 03:04. Civil Dark: 22:07 - 04:17. Nautical Dark: 23:15 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

18
16
16
10
11
10
25
30
8
4
4
6
2
0
0
0
0
22
3
3
4
4
4
3

Low Clouds (% Sky Obscured)

1
1
2
1
1
1
1
0
0
0
0
6
2
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
16
17
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
3
3
1
1

ISS Passover

Visibility (miles)

4
3
3
3
3
3
3
3
3
3
3
9
9
9
9
9
7
7
7
9
9
9
9
9

Fog (%)

25
9
8
11
10
8
5
3
2
1
1
1
0
0
0
0
0
0
7
11
2
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
6
10
8
8
11
4
1
0
13
0
0
0
1
0
0
0
0
0
3
5
11
38

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
5
4
3
3
2
1
1
2
3
5
6
8
9
10
11
12
12
13
14
14
14

Chance of Frost

Temperature (°C)

26
25
24
23
23
22
22
22
21
20
19
19
19
18
17
17
16
16
16
16
17
18
20
20

Feels Like (°C)

29
28
27
26
26
26
26
26
25
24
22
22
21
19
17
17
16
16
15
15
16
18
19
20

Dew Point (°C)

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

Relative Humidity (%)

73
76
78
78
80
79
79
80
87
88
88
89
91
90
93
96
93
95
92
90
82
78
76
76

Pressure (mb)

1027
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1025
1025
1025
1025

Ozone (du)

326
325
325
324
324
324
324
325
324
325
326
327
328
330
331
331
332
332
331
331
331
330
330
330

Wednesday 27

Waxing Gibbous 89%

17:39

03:16

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

Sun - Rise: 05:02, Set: 21:23, Transit: 13:13. Moon - Rise: 17:39, Set: 03:16. Civil Dark: 22:09 - 04:16. Nautical Dark: 23:18 - 03:06. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

5
12
8
78
67
70
72
27
6
11
26
48
8
57
68
76
20
0
0
0
1
4
14
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
31
40
20
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
1
3
14
0
0
0
3
0
7
19
9
4
1
28
15
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
9
2
77
67
70
72
21
6
2
2
34
3
54
57
57
2
0
0
0
1
4
14
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

55
35
31
14
7
4
7
4
7
15
9
6
30
35
56
66
15
4
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
16
17
17
17
16
15
16
16
16
17
17
17
15
14
11
10
10
10
10
10
9
8
6

Chance of Frost

Temperature (°C)

21
22
23
24
24
24
24
23
22
21
20
19
18
17
16
15
14
13
13
14
16
17
19
21

Feels Like (°C)

20
20
21
23
23
24
25
23
22
20
18
17
17
15
14
14
14
13
12
14
16
18
19
22

Dew Point (°C)

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

Relative Humidity (%)

75
77
71
69
69
72
74
77
79
80
79
80
80
83
86
87
89
92
92
90
86
82
75
66

Pressure (mb)

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

Ozone (du)

329
328
328
329
329
329
330
330
330
331
333
332
333
336
339
342
345
346
345
346
345
342
339
336

Thursday 28

Waxing Gibbous 95%

18:54

03:31

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
10 Bad
11 Bad

Sun - Rise: 05:01, Set: 21:24, Transit: 13:13. Moon - Rise: 18:54, Set: 03:31. Civil Dark: 22:10 - 04:15. Nautical Dark: 23:20 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
65
100
100
93
100
51
52
100
100
100
100
99
100
100
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

10
0
0
0
0
0
0
33
44
52
64
65
31
52
71
70
81
74
81
76
72
73
61
46

Medium Clouds (% Sky Obscured)

21
75
68
52
91
55
60
76
31
22
11
2
1
1
1
33
63
86
60
32
87
60
88
88

High Clouds (% Sky Obscured)

100
100
100
64
100
90
91
100
45
33
100
100
100
100
96
100
100
100
96
80
61
40
36
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
2
4
1
15
7
29
48
51
11
2
0
0
0
0
0
0
1
1
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
8
8
7
6
5
7
8
7
5
5
4
4
4
6
6
6
4
3
2
3
3
4
4

Chance of Frost

Temperature (°C)

23
23
22
22
22
22
21
20
18
16
15
15
14
14
13
13
13
12
12
13
14
15
15
16

Feels Like (°C)

23
22
21
20
21
21
20
19
18
17
16
14
14
14
13
13
12
11
11
13
13
13
14
14

Dew Point (°C)

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

Relative Humidity (%)

62
61
60
63
66
66
74
77
82
92
92
89
90
93
95
96
96
96
95
92
87
82
76
73

Pressure (mb)

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

Ozone (du)

334
332
331
330
327
329
331
337
341
335
332
331
329
329
329
329
328
327
326
325
326
325
325
327

Friday 29

Waxing Gibbous 98%

20:09

03:50

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

Sun - Rise: 05:01, Set: 21:25, Transit: 13:13. Moon - Rise: 20:09, Set: 03:50. Civil Dark: 22:12 - 04:14. Nautical Dark: 23:22 - 03:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
94
91
25
68
67
79
93
92
20
43
83
97
95
93
90
88
90
90
22
27
97
98
99

Low Clouds (% Sky Obscured)

36
33
30
25
26
24
21
15
8
0
15
29
43
29
14
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

86
79
60
10
37
36
40
27
2
2
0
1
0
0
0
0
29
0
0
2
2
0
0
0

High Clouds (% Sky Obscured)

25
18
16
1
0
1
3
43
50
14
33
59
74
69
65
60
59
63
67
22
27
93
95
98

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)

5
5
5
5
5
5
4
3
3
2
1
1
2
3
3
3
4
4
3
3
1
2
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
73
74
72
71
71
69
70
80
83
84
84
84
84
80
79
76
71
71
69
61
60
59
56

Pressure (mb)

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

Ozone (du)

328
332
336
339
339
340
338
338
338
337
336
334
334
334
335
336
337
338
341
342
340
339
339
339

Saturday 30

Waxing Gibbous 100%

21:22

04:17

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
10 Bad
11 Bad

Sun - Rise: 05:00, Set: 21:26, Transit: 13:13. Moon - Rise: 21:22, Set: 04:17. Civil Dark: 22:13 - 04:13. Nautical Dark: 23:25 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
45
100
100
100
100
100
100
100
100
100
100
100
98
95

Low Clouds (% Sky Obscured)

0
0
0
0
11
23
35
36
33
42
45
71
90
93
96
100
98
96
95
90
83
76
77
76

Medium Clouds (% Sky Obscured)

2
0
0
0
10
88
100
100
100
88
45
71
59
67
75
83
83
87
88
87
88
81
74
70

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
94
77
45
41
20
35
65
75
75
75
76
60
60
67
86
94

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
7
7
8

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
2
8
45
65
76
95
78
57
50
45
56
54
51
50
40
36

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
5
5
6
6
6
6
5
4
5
4
3
3
4
4
5
6
8
10
9
10
10
10

Chance of Frost

Temperature (°C)

18
18
18
17
17
16
15
14
14
13
13
12
12
13
13
13
14
14
14
13
14
14
14
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
58
60
62
63
62
66
71
79
80
76
81
77
79
76
74
71
78
83
90
92
93
96
92

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1015

Ozone (du)

340
340
340
340
340
341
344
344
352
362
356
349
349
349
347
345
343
342
342
341
345
349
352
355

Sunday 31

Full Moon 99%

22:28

04:56

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

Sun - Rise: 04:59, Set: 21:28, Transit: 13:14. Moon - Rise: 22:28, Set: 04:56. Civil Dark: 22:15 - 04:11. Nautical Dark: 23:27 - 02:59. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
69
42
11
8
7
10
9
21
39
68
77
72
86
90
93
91
92
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

79
65
42
11
8
7
10
9
21
39
68
72
69
75
87
93
88
86
91
95
95
96
97
98

Medium Clouds (% Sky Obscured)

63
44
24
4
5
6
8
9
16
22
30
44
55
71
77
82
66
52
36
22
17
18
28
37

High Clouds (% Sky Obscured)

93
64
30
0
0
0
0
9
21
39
53
45
39
56
73
90
79
67
61
73
83
93
78
64

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5

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
Light Rain
None
None
None
None
None

Precipitation Probability (%)

39
22
11
8
5
5
4
4
7
5
2
2
9
6
4
13
12
20
56
40
27
35
33
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
87
86
85
83
83
85
85
87
90
93
93
93
92
90
90
89
89
92
92
92
93
93
95

Pressure (mb)

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

Ozone (du)

358
361
357
352
348
345
343
341
341
341
342
341
340
339
338
337
336
336
335
335
333
330
328
328

Monday 1

Waning Gibbous 97%

23:23

05:47

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: 04:58, Set: 21:29, Transit: 13:14. Moon - Rise: 23:23, Set: 05:47. Civil Dark: 22:16 - 04:10. Nautical Dark: 23:29 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
91
88
96
96
97
94
92
91
91
92
94
100
96
91
85
90
95
99

Medium Clouds (% Sky Obscured)

43
54
66
85
88
88
88
91
92
94
94
94
96
98
99
100
100
100
100

High Clouds (% Sky Obscured)

49
63
80
96
97
99
100
100
100
100
68
37
10
40
70
100
100
100
100

ISS Passover

Visibility (miles)

2
0
1
2
3
4
5
6
4
2
0
2
4
5
4
3
2
1
1

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

28
46
71
94
85
74
67
68
70
70
64
53
53
73
95
95
95
95
95

Precipitation Amount (mm)

0
0
0.4
0.6
0.5
0.3
0.2
0.2
0.3
0.3
0.3
0
0.2
0.4
0.6
3.6
1.7
2.5
2.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
16
16
16
16
16
15
15
15
15
14
14
14
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

15
15
15
16
16
16
15
14
14
14
14
14
14
14
14
14
15
14
15

Relative Humidity (%)

95
98
98
98
96
96
95
92
93
96
98
96
96
96
96
96
98
96
98

Pressure (mb)

1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1010
1010
1009
1008
1007
1007
1006
1006

Ozone (du)

329
329
331
332
334
336
338
340
342
345
348
350
352
354
355
357
359
363
368

Forecast for Aberystwyth, Ceredigion, United Kingdom (52.42,-4.08)

Generated: 26/05/26 12:01:31. Forecast: 26/05/26 to 01/06/26. Timezone: UTC+1.00