Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:48

05:19

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:53, Set: 20:38, Transit: 13:17. Moon - Rise: 19:48, Set: 05:19. Civil Dark: 21:15 - 05:16. Nautical Dark: 22:03 - 04:28. Astro Dark: 23:00 - 03:30

Total Clouds (% Sky Obscured)

37
22
14
42
63
69
62
57
72
66
78
77
91
99
98
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
14
27
47
47
54
56
68
60
78
77
87
87
97
90
72
62
49
52
42
14
9
26

Medium Clouds (% Sky Obscured)

37
22
14
17
53
62
12
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

37
22
14
42
63
69
1
0
5
8
5
19
83
67
70
82
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
7
4
5
7
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
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

6
7
9
63
61
52
38
20
14
10
5
9
4
3
0
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
18
15
14
13
12
9
6
4
3
3
2
2
2
2
3
3
4
5
5
5
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
78
82
87
92
93
95
96
96
96
96
93
95
95
95
93
93
90
83
75
69
65
64
65

Pressure (mb)

1015
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1021
1021
1021
1021
1021

Ozone (du)

368
369
370
370
367
365
366
368
370
368
366
363
362
360
358
358
358
358
358
358
359
361
364
363

Friday 1

Full Moon 100%

21:01

05:37

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:52, Set: 20:40, Transit: 13:17. Moon - Rise: 21:01, Set: 05:37. Civil Dark: 21:17 - 05:14. Nautical Dark: 22:05 - 04:26. Astro Dark: 23:03 - 03:27

Total Clouds (% Sky Obscured)

100
100
86
96
100
100
100
97
100
100
100
96
95
94
92
100
100
100
100
94
95
100
100
100

Low Clouds (% Sky Obscured)

15
4
29
14
22
12
0
4
0
50
51
60
85
87
76
76
68
76
36
52
76
72
80
76

Medium Clouds (% Sky Obscured)

12
100
82
95
99
100
100
83
89
85
89
66
51
47
24
44
100
97
57
76
92
94
100
100

High Clouds (% Sky Obscured)

100
100
74
70
99
65
98
89
100
51
60
35
9
18
65
100
100
98
73
55
52
99
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
8
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
23
63
55
60
55
59
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
3
10
21
24
37
77
49
19
23
25
35
32
9
7
28
57
60
57
61

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.7
0
0
0
0
0
0
0
0
0
0.3
0.2
0.2
0.3

Wind Speed/Direction (mph)

10
9
9
8
7
6
5
3
3
3
3
2
2
3
4
5
6
8
9
9
9
9
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
67
69
73
79
86
90
90
90
90
88
88
91
90
93
91
93
87
89
89
87
81
72
77

Pressure (mb)

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

Ozone (du)

364
367
369
371
371
371
372
371
368
367
368
369
369
370
371
373
374
376
378
381
382
382
382
381

Saturday 2

Waning Gibbous 98%

22:14

06:01

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:50, Set: 20:42, Transit: 13:16. Moon - Rise: 22:14, Set: 06:01. Civil Dark: 21:19 - 05:12. Nautical Dark: 22:07 - 04:24. Astro Dark: 23:06 - 03:24

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
90
91
94
83
73
85
86
76
69
70
59
59
47

Low Clouds (% Sky Obscured)

76
41
59
74
79
69
90
100
100
100
98
75
80
89
76
63
78
83
62
57
47
37
41
44

Medium Clouds (% Sky Obscured)

97
100
96
100
100
100
100
89
58
64
31
38
28
27
24
50
47
1
18
12
30
22
13
7

High Clouds (% Sky Obscured)

100
88
80
96
100
100
100
100
65
24
70
70
3
3
4
0
0
1
1
0
6
0
1
3

ISS Passover

Visibility (miles)

7
9
9
9
9
5
5
3
4
5
4
4
9
9
8
2
4
9
9
9
9
9
9
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

52
67
84
95
95
95
88
62
23
10
8
11
20
46
69
90
65
39
30
31
20
37
33
41

Precipitation Amount (mm)

0
0
0
0.6
0.9
0.9
0.9
0.5
0
0
0
0
0
0
0.6
1
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
8
7
5
3
2
2
2
2
3
3
4
4
5
5
6
5
8
9
9
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
93
92
95
98
98
100
100
100
98
96
95
98
96
98
96
93
87
83
76
78
78
76

Pressure (mb)

1013
1013
1012
1011
1011
1011
1010
1010
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009

Ozone (du)

382
382
383
382
381
382
384
385
387
388
390
388
384
382
379
380
383
387
386
385
386
386
386
385

Sunday 3

Waning Gibbous 95%

23:23

06:34

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

Sun - Rise: 05:48, Set: 20:43, Transit: 13:16. Moon - Rise: 23:23, Set: 06:34. Civil Dark: 21:21 - 05:10. Nautical Dark: 22:09 - 04:21. Astro Dark: 23:09 - 03:20

Total Clouds (% Sky Obscured)

42
30
37
57
26
24
31
27
25
18
21
20
22
24
29
32
30
27
34
30
26
26
30
31

Low Clouds (% Sky Obscured)

42
30
37
32
26
24
31
27
25
18
21
20
22
24
29
32
30
27
34
30
26
26
30
31

Medium Clouds (% Sky Obscured)

0
0
19
48
3
0
0
1
2
0
1
2
2
2
2
2
5
7
9
6
3
0
0
0

High Clouds (% Sky Obscured)

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

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
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 (%)

27
24
11
4
4
4
5
7
7
6
15
16
6
17
15
5
17
18
13
30
35
26
29
34

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
10
10
9
7
5
3
3
2
2
2
1
1
1
1
1
1
2
2
2
2
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
71
71
75
80
88
93
93
95
95
95
95
95
93
95
95
93
88
84
79
79
80
80
80

Pressure (mb)

1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1014

Ozone (du)

387
388
387
387
388
388
388
388
389
388
387
386
385
384
384
385
385
385
385
385
386
387
388
390

Monday 4

Waning Gibbous 90%

00:25

07:17

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

Sun - Rise: 05:46, Set: 20:45, Transit: 13:16. Moon - Rise: 00:25, Set: 07:17. Civil Dark: 21:22 - 05:08. Nautical Dark: 22:11 - 04:19. Astro Dark: 23:12 - 03:17

Total Clouds (% Sky Obscured)

26
28
9
11
19
44
25
15
13
17
20
18
9
8
12
14
43
46
52
39
36
28
39
50

Low Clouds (% Sky Obscured)

26
27
9
11
19
27
14
7
3
3
5
4
3
4
8
11
37
36
36
28
23
19
21
27

Medium Clouds (% Sky Obscured)

0
3
0
0
5
9
12
11
9
9
6
3
2
4
3
5
4
11
20
15
10
5
3
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
21
34
25
13
2
11
18

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 (%)

12
18
17
5
5
2
0
0
0
0
0
0
0
1
2
0
17
20
23
20
17
15
11
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)

2
5
7
8
10
9
8
7
7
7
7
8
9
9
9
10
11
9
10
12
12
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
80
80
79
81
90
95
96
95
95
96
96
96
96
96
95
91
84
78
73
73
71
71
71

Pressure (mb)

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

Ozone (du)

392
392
394
395
395
397
399
398
395
392
390
387
385
384
382
380
379
380
382
383
382
382
381
380

Tuesday 5

Waning Gibbous 83%

01:16

08:11

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
12 OK
13 Bad
14 Bad

Sun - Rise: 05:45, Set: 20:46, Transit: 13:16. Moon - Rise: 01:16, Set: 08:11. Civil Dark: 21:24 - 05:07. Nautical Dark: 22:14 - 04:17. Astro Dark: 23:16 - 03:14

Total Clouds (% Sky Obscured)

61
71
79
89
82
75
71
65
57
47
65
82
99
98
97
96
85
76
63
47
50
46
64
76

Low Clouds (% Sky Obscured)

34
39
42
42
47
47
43
28
27
27
27
29
29
35
41
44
43
39
36
25
17
11
26
31

Medium Clouds (% Sky Obscured)

0
2
5
5
5
4
5
7
5
0
5
10
15
20
38
58
49
35
22
24
25
26
31
37

High Clouds (% Sky Obscured)

28
31
29
24
8
7
3
0
0
0
33
67
99
95
89
86
70
74
47
28
25
23
25
32

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 (%)

8
7
4
0
2
2
2
3
3
2
5
7
9
12
13
17
16
11
2
4
3
1
7
10

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)

14
15
14
14
13
12
11
9
8
7
6
6
6
6
6
7
8
8
10
11
10
10
10
10

Chance of Frost

Temperature (°C)

13
13
12
12
11
10
9
9
8
8
7
7
7
7
8
8
8
9
10
11
12
12
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
74
76
79
81
80
80
80
79
82
82
79
78
75
74
73
71
68
64
59
60
60
59
62

Pressure (mb)

1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017

Ozone (du)

379
379
379
380
381
382
383
385
385
386
387
386
386
385
383
382
381
382
383
385
384
383
383
382

Wednesday 6

Waning Gibbous 75%

01:56

09:16

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 OK
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:43, Set: 20:48, Transit: 13:16. Moon - Rise: 01:56, Set: 09:16. Civil Dark: 21:26 - 05:05. Nautical Dark: 22:16 - 04:14. Astro Dark: 23:19 - 03:10

Total Clouds (% Sky Obscured)

90
93
96
98
99
99
99
99
99
99
99
100
100
83
64
45
44
45
47
46
46
52

Low Clouds (% Sky Obscured)

31
32
19
10
4
3
2
19
36
53
38
32
27
38
43
45
44
45
47
46
45
38

Medium Clouds (% Sky Obscured)

44
45
46
42
52
54
60
66
69
76
68
58
52
58
61
45
44
45
47
46
46
52

High Clouds (% Sky Obscured)

42
58
63
72
74
79
87
81
74
62
63
61
61
65
64
45
44
45
47
40
31
22

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 (%)

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

Precipitation Probability (%)

11
11
10
9
8
5
0
1
1
0
2
3
2
7
8
5
12
15
15
22
25
26

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)

11
11
11
11
11
9
7
6
5
4
4
3
3
3
3
3
4
5
6
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
9
8
8
8
5
4
4
4
3
3
2
2
3
3
3
2
5
6
6
7
8

Dew Point (°C)

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

Relative Humidity (%)

65
67
69
72
74
74
73
72
74
75
76
78
79
80
79
79
79
74
69
66
66
67

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

381
380
380
381
381
381
381
381
380
380
380
380
381
381
383
385
386
387
387
388
387
386

Forecast for Mawgan Porth, Cornwall, United Kingdom (50.46,-5.03)

Generated: 30/04/26 15:21:32. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+1.00