Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 15

Waning Gibbous 89%

00:59

06:58

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

Sun - Rise: 05:15, Set: 21:12, Transit: 13:14. Moon - Rise: 00:59, Set: 06:58. Civil Dark: 21:57 - 04:31. Nautical Dark: 23:00 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

16
37
30
63
25
10
7
7
4
13
10
23
16
6
5
5
22
53
33
29
23
5
5
4

Low 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

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)

16
37
30
63
13
5
3
4
2
7
3
5
3
2
2
2
18
40
24
28
23
2
1
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
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)

12
13
13
13
14
14
14
14
13
12
10
8
7
7
8
9
9
8
7
7
6
6
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
13
11
11
12
13
14
13
14
13
11
10
10
10
9
8
7
6
6
6
7
10
11

Dew Point (°C)

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

Relative Humidity (%)

54
53
52
54
54
54
53
55
59
67
71
76
80
78
81
81
82
85
88
88
87
82
76
70

Pressure (mb)

1027
1028
1028
1028
1028
1028
1028
1028
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029

Ozone (du)

359
358
357
358
359
359
358
357
356
356
354
354
355
354
355
356
355
353
352
351
349
349
350
351

Friday 16

Waning Gibbous 82%

01:42

08:07

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
07 Good
08 Good
09 Good

Sun - Rise: 05:14, Set: 21:14, Transit: 13:15. Moon - Rise: 01:42, Set: 08:07. Civil Dark: 21:58 - 04:29. Nautical Dark: 23:03 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

4
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low 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

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)

1
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 (%)

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)

8
9
11
12
13
14
14
13
12
10
8
6
6
5
5
5
6
6
6
6
6
6
7
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
7
7
6
6
6
6
6
7
8
8
7
6
5
5
5
6
7
7
6
6
7
8
8

Relative Humidity (%)

64
58
55
51
50
49
49
51
54
64
69
70
70
71
71
72
76
82
82
80
78
77
71
63

Pressure (mb)

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

Ozone (du)

352
352
350
348
348
347
346
346
346
347
348
349
349
350
350
350
350
351
353
354
354
354
355
356

Saturday 17

Waning Gibbous 73%

02:11

09:26

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 OK
05 OK
06 Good
07 Good
08 Good
09 Good

Sun - Rise: 05:12, Set: 21:15, Transit: 13:15. Moon - Rise: 02:11, Set: 09:26. Civil Dark: 22:00 - 04:27. Nautical Dark: 23:06 - 03:21. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
0
2
7
0
0
0
6
45
39
5
0
4
0

Low 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

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
0
0
0
0
1
0
2
7
0
0
0
3
25
18
3
0
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
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
12
12
12
13
13
14
12
12
10
8
6
5
5
4
4
3
4
4
3
4
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
15
15
16
16
16
16
15
15
15
14
12
11
10
10
10
10
9
9
7
8
9
11
13

Dew Point (°C)

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

Relative Humidity (%)

60
59
58
57
57
55
54
53
57
64
71
71
71
73
77
80
81
81
78
81
84
83
73
66

Pressure (mb)

1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

358
360
361
361
362
366
368
367
365
367
368
369
370
372
375
375
375
372
370
370
370
372
372
372

Sunday 18

Waning Gibbous 64%

02:32

No Set

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

Sun - Rise: 05:11, Set: 21:17, Transit: 13:15. Moon - Rise: 02:32, Set: No Set. Civil Dark: 22:02 - 04:25. Nautical Dark: 23:08 - 03:18. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

3
8
12
19
31
43
36
25
35
23
7
0
0
0
0
8
17
20
30
30
32
32
25
24

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
3
6
9
5
2
0
0
0
0
0
0
0
0
0
1
2
2
0

Medium Clouds (% Sky Obscured)

3
8
12
19
31
43
36
23
0
0
0
0
0
0
0
8
17
20
30
30
32
32
25
24

High Clouds (% Sky Obscured)

0
0
0
19
31
43
36
25
11
8
3
0
0
0
0
8
17
20
30
30
32
23
10
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
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
1
1
1
1
1
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
6
7
8
8
7
6
5
4
3
3
3
3
4
4
5
6
7
7
7
8
9
9
9

Chance of Frost

Temperature (°C)

16
17
17
18
18
18
18
18
18
18
16
14
12
12
11
10
10
10
10
10
11
11
12
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
59
58
58
57
55
55
58
59
63
68
71
70
68
69
71
72
73
74
73
73
73
70
70

Pressure (mb)

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

Ozone (du)

373
375
376
376
375
375
375
375
375
374
375
378
380
383
383
383
384
383
382
381
380
380
381
380

Monday 19

Waning Gibbous 53%

02:47

10:50

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

Sun - Rise: 05:09, Set: 21:18, Transit: 13:15. Moon - Rise: 02:47, Set: 10:50. Civil Dark: 22:04 - 04:23. Nautical Dark: 23:11 - 03:16. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

26
20
10
20
34
46
37
29
2
46
53
42
25
36
5
14
22
30
30
29
29
39
55
71

Low Clouds (% Sky Obscured)

0
0
0
0
1
1
4
11
0
0
0
0
0
0
0
0
1
1
1
1
1
5
12
17

Medium Clouds (% Sky Obscured)

26
20
10
18
27
37
33
18
0
9
20
35
19
9
0
10
18
24
24
29
27
27
26
25

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
20
20
5
5
17
2
2
3
5
5
5
4
2
2
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
14
14
13
14
14
14
14
13
11
10
9
9
9
9
9
8
8
8
8
8
10
9

Dew Point (°C)

9
9
10
11
10
10
10
9
10
11
11
11
10
10
10
10
10
9
9
9
9
9
9
9

Relative Humidity (%)

68
66
65
65
62
60
60
60
65
72
78
80
82
86
89
92
93
93
93
93
91
88
86
83

Pressure (mb)

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

Ozone (du)

381
383
383
383
381
382
383
381
379
375
373
369
366
362
359
358
358
358
358
358
358
358
359
361

Tuesday 20

Third Quarter 41%

02:58

12:16

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

Sun - Rise: 05:08, Set: 21:20, Transit: 13:15. Moon - Rise: 02:58, Set: 12:16. Civil Dark: 22:06 - 04:22. Nautical Dark: 23:14 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

69
67
64
48
38
24
28
41
51
65
74
78
84
85
90
79
68
83
88
93
100
96
92
83

Low Clouds (% Sky Obscured)

19
23
25
15
8
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

20
14
7
4
4
4
8
11
19
33
50
74
80
85
88
74
60
44
33
19
11
6
3
0

High Clouds (% Sky Obscured)

0
0
0
13
27
24
28
41
51
65
74
78
69
55
37
30
28
25
25
25
25
14
23
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
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
4
5
6
8
9
8
10
9
5
12
13
5
10
10
8
5
2
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
11
11
10
10
10
10
9
8
7
6
4
4
4
3
2
2
2
1
1
2
3
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
74
69
65
62
60
58
60
63
66
70
73
78
78
80
80
80
78
78
78
77
76
72
68

Pressure (mb)

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

Ozone (du)

363
365
367
369
371
373
376
373
371
369
367
365
363
361
360
358
356
355
353
352
351
350
350
350

Wednesday 21

Waning Crescent 30%

03:08

13:42

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: 05:07, Set: 21:21, Transit: 13:15. Moon - Rise: 03:08, Set: 13:42. Civil Dark: 22:08 - 04:20. Nautical Dark: 23:16 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

78
81
75
75
80
85
95
95
95
85
84
87
90
92
94
96
98
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
2
2
3
14
19
23
30
38
50
38
27
15

Medium Clouds (% Sky Obscured)

0
0
0
8
18
27
38
46
55
50
50
50
55
67
79
82
86
89
93
96
99

High Clouds (% Sky Obscured)

14
14
35
35
35
35
36
37
37
38
50
61
58
61
62
71
80
90
93
96
100

ISS Passover

Visibility (miles)

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

Fog (%)

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
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
30
52
74
90
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.7
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
9
10
11
11
13
14
14
13
12
11
10
9
9
10
10
10
10

Relative Humidity (%)

64
63
63
63
67
69
72
75
78
81
85
86
89
87
86
84
84
86
87
87
90

Pressure (mb)

1022
1022
1021
1021
1021
1021
1020
1020
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1014
1014

Ozone (du)

350
351
353
355
356
357
358
358
358
359
360
362
364
365
366
367
368
370
371
373
375

Forecast for Holyhead, Anglesey, United Kingdom (53.30,-4.65)

Generated: 15/05/25 10:39:38. Forecast: 15/05/25 to 21/05/25. Timezone: UTC+1.00