Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Full Moon 100%

No Rise

09:12

16 Bad
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
15 Bad

Sun - Rise: 08:05, Set: 16:20, Transit: 12:12. Moon - Rise: No Rise, Set: 09:12. Civil Dark: 16:58 - 07:27. Nautical Dark: 17:39 - 06:46. Astro Dark: 18:18 - 06:06

Total Clouds (% Sky Obscured)

57
31
55
90
87
86
50
50
100
100
100
100
99
100
100
100
100
100
99
100
100
99
89
79

Low Clouds (% Sky Obscured)

25
31
42
51
80
71
40
35
45
67
49
68
42
48
63
59
76
77
85
97
100
97
80
70

Medium Clouds (% Sky Obscured)

12
25
22
60
31
40
14
47
66
99
100
100
98
98
100
100
100
100
69
100
60
38
27
29

High Clouds (% Sky Obscured)

0
0
0
0
0
4
6
7
72
51
84
71
75
100
72
100
80
50
63
79
8
0
0
0

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
1
4
4
8
6

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

35
3
15
9
33
46
42
36
38
31
28
22
26
22
35
60
95
95
95
95
95
95
95
78

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.8
2
1.1
3.2
1.4
2.4
0.7
0.4

Wind Speed/Direction (mph)

16
15
15
16
17
18
17
17
16
16
15
13
14
15
18
20
23
25
28
32
35
36
34
31

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
65
63
63
63
65
69
72
74
74
74
73
69
70
65
65
73
82
90
90
93
95
87
82

Pressure (mb)

1001
1002
1002
1003
1004
1004
1004
1005
1005
1005
1005
1006
1005
1005
1004
1003
1002
1001
1000
997
995
993
991
991

Ozone (du)

371
372
374
370
358
350
339
334
332
329
323
315
313
312
306
299
297
294
291
290
292
294
295
296

Friday 5

Waning Gibbous 98%

16:17

10:20

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: 08:06, Set: 16:20, Transit: 12:13. Moon - Rise: 16:17, Set: 10:20. Civil Dark: 16:58 - 07:28. Nautical Dark: 17:39 - 06:47. Astro Dark: 18:18 - 06:07

Total Clouds (% Sky Obscured)

67
65
65
67
78
40
54
98
100
94
74
100
100
78
83
100
98
87
83
68
80
73
96
100

Low Clouds (% Sky Obscured)

51
65
24
46
50
40
46
58
54
56
61
58
63
58
69
52
57
56
39
24
50
40
61
41

Medium Clouds (% Sky Obscured)

31
0
31
23
52
0
35
73
100
87
37
68
65
40
40
31
31
45
49
45
45
49
21
28

High Clouds (% Sky Obscured)

0
0
0
0
0
0
54
65
16
0
0
0
0
0
0
54
49
20
32
4
60
45
75
100

ISS Passover

Visibility (miles)

9
9
8
7
9
9
8
8
9
9
8
8
9
9
9
8
9
8
9
8
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
Light Rain
None
None
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

47
35
44
35
68
46
43
54
67
60
69
66
70
56
42
40
36
47
44
33
25
14
27
9

Precipitation Amount (mm)

0
0
0
0
0.4
0
0
0.2
0.4
0.3
0.4
0.3
0.3
0.3
0
0
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

28
28
28
27
29
30
30
31
31
32
32
32
33
34
34
34
34
33
33
33
32
31
30
28

Chance of Frost

Temperature (°C)

13
12
12
12
12
12
12
11
11
11
11
11
11
11
11
11
12
11
11
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
81
81
79
76
79
79
80
81
81
83
81
80
81
81
83
83
83
83
81
79
79
79

Pressure (mb)

992
992
992
992
993
993
992
992
993
993
993
994
994
994
995
996
997
998
999
999
1000
1000
1001
1001

Ozone (du)

295
297
302
308
309
307
303
299
299
299
298
298
297
295
298
299
300
300
303
303
301
302
303
302

Saturday 6

Waning Gibbous 93%

17:29

11:07

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: 08:07, Set: 16:20, Transit: 12:13. Moon - Rise: 17:29, Set: 11:07. Civil Dark: 16:58 - 07:29. Nautical Dark: 17:39 - 06:48. Astro Dark: 18:18 - 06:08

Total Clouds (% Sky Obscured)

99
98
100
100
98
100
100
100
98
98
99
100
100
98
100
100
99
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

31
54
62
45
44
47
46
54
60
73
73
78
92
96
92
96
82
93
85
96
87
78
69
79

Medium Clouds (% Sky Obscured)

0
44
69
82
46
65
94
100
95
93
91
89
89
83
95
87
96
95
98
100
100
96
91
77

High Clouds (% Sky Obscured)

91
90
100
100
95
100
100
100
89
84
87
100
100
81
100
100
75
100
45
100
100
100
100
87

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
4
4
7
3
2
2
3
4
4
9
4
3
1
1
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

23
28
34
36
32
33
68
95
95
95
95
95
95
66
28
16
10
67
95
95
95
48
47
36

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
1.1
0.7
0.8
1.4
0.7
1
0.4
0
0
0
0.2
1
1.2
0.7
0
0
0

Wind Speed/Direction (mph)

27
24
22
21
20
18
16
16
15
14
12
13
14
17
19
16
17
16
15
16
20
22
21
27

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
12
12
12
12
12
12
13
13
13
13
13
13
13
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
81
86
84
83
83
87
92
93
95
96
96
98
98
98
96
96
96
98
98
98
92
90
90

Pressure (mb)

1002
1003
1003
1003
1004
1004
1004
1003
1003
1002
1001
1000
999
999
998
999
999
999
999
999
998
998
997
998

Ozone (du)

300
298
300
298
298
296
295
295
295
296
297
297
297
299
299
304
306
305
305
307
306
308
308
310

Sunday 7

Waning Gibbous 86%

18:53

11:39

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: 08:08, Set: 16:19, Transit: 12:14. Moon - Rise: 18:53, Set: 11:39. Civil Dark: 16:57 - 07:30. Nautical Dark: 17:39 - 06:48. Astro Dark: 18:18 - 06:09

Total Clouds (% Sky Obscured)

100
100
98
96
94
87
78
74
77
76
76
82
89
98
96
93
92
85
80
78
76
68
64
80

Low Clouds (% Sky Obscured)

90
100
95
90
84
70
57
46
45
50
55
54
51
52
59
59
49
51
47
52
47
44
38
38

Medium Clouds (% Sky Obscured)

39
16
24
30
37
55
21
16
71
29
17
19
21
28
95
93
92
84
37
33
65
65
64
60

High Clouds (% Sky Obscured)

77
55
50
50
50
45
45
50
50
35
35
35
50
45
45
55
55
55
50
50
55
50
35
50

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

30
23
26
32
49
47
41
10
20
21
29
47
48
45
55
53
65
61
44
37
39
48
50
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

27
29
31
28
26
25
21
18
16
18
21
23
23
23
23
23
23
23
23
23
24
24
24
24

Chance of Frost

Temperature (°C)

13
13
13
12
12
12
12
12
11
11
12
12
12
12
12
12
12
12
12
12
13
12
12
12

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
11
11
10
10
10
10
11
11
11
11
11
10
10
10
10
10
11
10
10
10

Relative Humidity (%)

89
90
90
90
92
92
92
90
90
90
95
95
95
95
93
90
87
87
87
87
87
87
86
87

Pressure (mb)

998
997
997
998
999
1001
1001
1002
1002
1002
1002
1002
1002
1002
1003
1004
1004
1005
1005
1006
1006
1006
1006
1006

Ozone (du)

309
309
305
305
303
302
301
302
302
305
303
307
315
317
319
319
320
319
320
320
320
321
327
333

Monday 8

Waning Gibbous 77%

20:20

12:02

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: 08:09, Set: 16:19, Transit: 12:14. Moon - Rise: 20:20, Set: 12:02. Civil Dark: 16:57 - 07:31. Nautical Dark: 17:39 - 06:49. Astro Dark: 18:18 - 06:10

Total Clouds (% Sky Obscured)

91
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

57
56
58
56
57
63
69
76
76
75
74
78
86
93
94
96
98
96
94
93
95
97
100
100

Medium Clouds (% Sky Obscured)

50
45
57
69
80
87
58
100
100
100
100
100
100
100
100
100
100
100
100
100
95
89
82
61

High Clouds (% Sky Obscured)

75
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
7
9
9
9
9
8
4
4
3
2
2
1
1
4
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

42
34
42
34
26
24
33
43
54
69
85
95
95
95
95
95
95
95
95
95
95
95
95
90

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.7
1.1
1.7
1.7
2.2
2.6
3.5
4.2
5.3
1.9
1.6
0.9
0.5

Wind Speed/Direction (mph)

26
24
23
22
21
20
19
19
18
17
17
19
21
23
24
27
28
31
33
34
35
36
36
36

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
77
77
76
76
77
77
81
89
90
92
93
95
95
95
93
95
95
93
95
93
89
84
78

Pressure (mb)

1007
1007
1007
1008
1009
1009
1009
1009
1009
1008
1008
1007
1006
1004
1003
1000
998
997
996
996
995
995
994
994

Ozone (du)

334
336
336
332
329
324
323
321
314
312
309
307
308
307
304
302
300
297
296
294
292
292
292
291

Tuesday 9

Waning Gibbous 67%

21:43

12:18

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: 08:10, Set: 16:19, Transit: 12:14. Moon - Rise: 21:43, Set: 12:18. Civil Dark: 16:57 - 07:32. Nautical Dark: 17:39 - 06:50. Astro Dark: 18:18 - 06:11

Total Clouds (% Sky Obscured)

100
100
98
96
94
83
72
61
64
68
71
79
88
97
98
99
100
87
75
62
50
43
34
36

Low Clouds (% Sky Obscured)

100
100
93
87
81
67
53
36
36
34
32
45
58
71
65
55
45
41
34
21
21
18
17
21

Medium Clouds (% Sky Obscured)

43
25
17
10
3
17
31
45
50
53
58
62
70
77
60
40
21
22
23
33
27
25
16
12

High Clouds (% Sky Obscured)

95
92
90
89
93
67
33
0
0
0
0
0
0
15
25
35
45
35
25
13
6
2
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 (%)

56
29
30
31
32
29
22
8
9
9
6
16
19
24
25
24
28
25
23
25
23
19
18
21

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)

37
39
41
38
35
34
32
33
34
33
31
30
29
28
27
26
25
24
24
23
22
22
21
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
80
82
82
83
84
86
86
84
84
84
84
83
83
81
83
83
81
80
80
80
79
80

Pressure (mb)

993
992
992
992
992
993
994
995
996
997
998
999
1000
1001
1001
1002
1003
1004
1005
1006
1006
1007
1007
1008

Ozone (du)

290
289
289
290
292
293
294
295
295
298
301
303
305
306
308
311
315
318
321
324
327
330
333
336

Wednesday 10

Waning Gibbous 56%

23:01

12:32

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

Sun - Rise: 08:11, Set: 16:19, Transit: 12:15. Moon - Rise: 23:01, Set: 12:32. Civil Dark: 16:57 - 07:33. Nautical Dark: 17:39 - 06:51. Astro Dark: 18:18 - 06:12

Total Clouds (% Sky Obscured)

31
26
31
39
54
61
70
78
60
43
29
48
61
77
82
88
95
92
91
87

Low Clouds (% Sky Obscured)

24
26
25
25
21
23
24
26
30
35
29
37
37
35
43
51
58
58
55
51

Medium Clouds (% Sky Obscured)

7
2
9
14
20
19
22
19
31
43
29
48
61
77
82
88
93
72
51
25

High Clouds (% Sky Obscured)

0
0
4
10
18
22
26
27
37
43
29
48
61
65
48
55
61
67
72
81

ISS Passover

Visibility (miles)

8
6
4
6
8
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

Precipitation Type

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

Precipitation Probability (%)

27
38
36
31
24
18
12
7
14
13
15
18
14
8
23
40
59
85
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.8
1

Wind Speed/Direction (mph)

19
19
18
17
17
16
17
18
19
20
21
22
23
24
25
26
27
28
25
25

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
5
6
6
6
6
6
6
6
5
6
5
6
5
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

81
81
84
85
87
87
85
84
84
85
85
87
87
87
87
87
86
86
86
84

Pressure (mb)

1008
1009
1010
1010
1010
1011
1011
1011
1011
1011
1010
1010
1009
1009
1008
1007
1007
1006
1006
1006

Ozone (du)

330
325
319
320
321
322
321
320
319
317
315
313
311
310
308
308
307
307
306
305

Forecast for Marazion, Cornwall, United Kingdom (50.13,-5.46)

Generated: 04/12/25 16:28:05. Forecast: 04/12/25 to 10/12/25. Timezone: UTC+0.00