Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waxing Crescent 31%

09:41

02:05

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 OK
21 Good
22 OK
23 Bad
00 Bad
01 Bad
02 OK
03 OK
04 OK
05 Bad
06 Bad

Sun - Rise: 05:09, Set: 21:14, Transit: 13:12. Moon - Rise: 09:41, Set: 02:05. Civil Dark: 21:59 - 04:24. Nautical Dark: 23:03 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
98
100
100
98
97
93
83
35
6
21
83
96
100
46
38
19
74
99

Low Clouds (% Sky Obscured)

100
93
95
78
85
99
80
59
34
4
0
0
0
0
0
0
0
0
0
0
0
0
0
38

Medium Clouds (% Sky Obscured)

51
51
46
37
84
86
72
75
26
46
60
68
26
22
3
14
21
10
3
7
4
10
0
51

High Clouds (% Sky Obscured)

51
76
70
100
99
100
72
100
100
95
67
81
35
2
0
6
27
48
100
46
38
8
74
95

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 (%)

1
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 (%)

22
9
7
6
18
16
15
7
16
4
3
13
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
92
90
89
86
86
85
82
78
77
78
83
82
88
90
90
87
82
78
83
87
89
90
89

Pressure (mb)

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

Ozone (du)

339
340
341
340
340
340
340
339
339
336
335
338
339
344
351
351
350
349
351
352
351
349
349
349

Friday 22

Waxing Crescent 42%

11:10

02:20

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

Sun - Rise: 05:08, Set: 21:16, Transit: 13:13. Moon - Rise: 11:10, Set: 02:20. Civil Dark: 22:01 - 04:23. Nautical Dark: 23:06 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
97
100
100
100
100
100
100
100
100
100
99
100
100
98
99
94
81
67
61
59
60
64
61

Low Clouds (% Sky Obscured)

75
51
29
52
52
48
36
25
40
66
59
60
50
54
78
85
64
57
52
57
57
56
64
61

Medium Clouds (% Sky Obscured)

60
45
38
42
0
0
50
53
55
57
56
96
81
89
81
80
59
77
63
40
21
31
15
2

High Clouds (% Sky Obscured)

100
89
100
100
99
100
100
100
100
99
54
71
100
100
89
96
57
40
40
40
47
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
9
38
17
8
6
4
3
3
5
3
1
1
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
2
1
0
0
1
5
5
4
1
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
6
7
8
10
9
9
8
4
7
5
3
2
1
2
2
3
3
3
2
2
2
1
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
78
76
77
75
73
73
73
76
77
78
82
85
89
90
92
92
93
95
93
92
93
93
95

Pressure (mb)

1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1026
1026
1026

Ozone (du)

349
350
348
348
348
349
348
346
347
345
344
342
342
340
343
345
351
355
362
370
369
364
360
354

Saturday 23

First Quarter 54%

12:34

02:33

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

Sun - Rise: 05:07, Set: 21:17, Transit: 13:13. Moon - Rise: 12:34, Set: 02:33. Civil Dark: 22:02 - 04:21. Nautical Dark: 23:08 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

68
69
53
36
63
45
22
21
9
14
32
63
96
96
100
100
70
38
50
15
15
14
15
19

Low Clouds (% Sky Obscured)

68
69
53
36
50
45
22
21
9
14
9
4
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
3
0
0
1
2
6
11
15
19

High Clouds (% Sky Obscured)

0
3
3
2
34
22
5
8
4
5
32
63
90
83
100
100
70
38
50
15
1
1
1
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
1
1
0
0
2
4
6
8
9
10
10
10
10
10
10
10
10
10
10
10
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
16
17
17
17
17
17
17
18
18
17
16
15
13
12
11
12
12
11
11
11
11
12

Dew Point (°C)

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

Relative Humidity (%)

92
90
86
82
78
75
74
74
72
72
71
73
75
83
84
84
83
83
81
81
81
80
79
77

Pressure (mb)

1027
1027
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030

Ozone (du)

350
346
341
339
337
334
334
333
329
326
324
323
323
322
321
321
322
322
322
320
318
317
316
317

Sunday 24

Waxing Gibbous 64%

13:53

02:43

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

Sun - Rise: 05:06, Set: 21:19, Transit: 13:13. Moon - Rise: 13:53, Set: 02:43. Civil Dark: 22:04 - 04:20. Nautical Dark: 23:11 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

18
13
10
9
4
2
1
1
0
0
0
0
0
0
0
0
1
2
3
3
4
4
5
4

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

18
13
10
9
4
2
1
1
0
0
0
0
0
0
0
0
1
2
1
1
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
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 (%)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
69
66
64
64
64
64
64
64
66
67
69
71
77
78
79
79
80
82
82
82
80
79
78

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

318
320
321
323
323
324
325
325
325
324
324
323
323
323
323
322
321
320
320
319
319
318
318
317

Monday 25

Waxing Gibbous 74%

15:09

02:53

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

Sun - Rise: 05:05, Set: 21:20, Transit: 13:13. Moon - Rise: 15:09, Set: 02:53. Civil Dark: 22:06 - 04:19. Nautical Dark: 23:13 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

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
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
3
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 (%)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
13
14
13
13
13
13
14
14
14
13
13
14
14
13
13
13
12
12
12
12
12
13

Relative Humidity (%)

77
72
68
67
64
63
63
63
63
65
66
67
71
75
78
81
83
83
84
84
87
87
89
89

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1031
1031
1032
1032
1032
1032
1032
1031
1031
1031
1032

Ozone (du)

320
320
321
320
320
320
319
320
321
323
323
323
322
322
322
322
321
320
318
318
318
317
317
317

Tuesday 26

Waxing Gibbous 82%

16:24

03:04

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

1
2
3
2
2
2
4
6
8
8
7
6
7
8
9
11
13
15
31
47
64
56
48
40

Low Clouds (% Sky Obscured)

0
1
1
1
1
0
0
0
0
0
0
0
0
1
2
2
1
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
1
0
0
0
1
1
1
2
2
2
1
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
2
2
2
10
21
30
36
48
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 (%)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Chance of Frost

Temperature (°C)

15
16
18
19
19
20
21
21
21
22
21
21
21
19
17
15
14
15
14
13
13
12
13
14

Feels Like (°C)

16
17
18
18
18
19
19
22
22
21
21
21
22
20
20
19
19
19
18
12
12
11
12
11

Dew Point (°C)

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

Relative Humidity (%)

87
79
74
68
61
57
51
51
50
49
53
59
64
65
68
71
73
74
78
79
83
87
83
79

Pressure (mb)

1032
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1030
1030
1030
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030

Ozone (du)

317
319
320
321
322
323
323
324
325
326
326
325
325
325
326
326
327
329
330
330
331
331
330
330

Wednesday 27

Waxing Gibbous 89%

17:39

03:16

07 OK
08 OK
09 Good
10 Good
11 Good
12 Good
13 OK
14 OK
15 OK
16 Good
17 Good
18 Good
19 OK
20 OK
21 Bad
22 Bad
23 OK
00 OK

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)

30
19
8
9
11
14
19
20
21
16
13
6
20
35
50
53
44
39

Low Clouds (% Sky Obscured)

0
0
0
2
7
14
19
20
18
12
6
0
0
0
0
4
8
13

Medium Clouds (% Sky Obscured)

0
0
0
1
3
5
3
1
0
0
0
0
4
9
16
12
7
0

High Clouds (% Sky Obscured)

30
19
2
2
1
1
2
3
3
3
2
1
20
35
50
53
40
23

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Precipitation Type

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
0
1
2
2
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
18
20
23
25
26
27
26
26
25
23
22
21
19
18
16
16
16

Feels Like (°C)

11
16
18
21
23
24
25
28
26
25
23
23
22
20
20
19
19
19

Dew Point (°C)

11
13
15
17
19
20
21
21
20
20
18
18
17
16
15
14
13
13

Relative Humidity (%)

75
72
70
67
69
70
70
71
72
73
74
76
79
81
83
85
85
83

Pressure (mb)

1030
1030
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026

Ozone (du)

329
329
329
328
329
330
330
332
333
335
336
337
338
337
337
337
337
337

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

Generated: 21/05/26 06:56:22. Forecast: 21/05/26 to 27/05/26. Timezone: UTC+1.00