Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Full Moon 100%

16:16

09:13

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:05, Set: 16:20, Transit: 12:12. Moon - Rise: 16:16, Set: 09:13. Civil Dark: 16:58 - 07:27. Nautical Dark: 17:39 - 06:46. Astro Dark: 18:18 - 06:07

Total Clouds (% Sky Obscured)

42
60
68
76
99
95
100
100
100
100
100
100
100
99
100
80
77
57
72
72
86
88
100
88

Low Clouds (% Sky Obscured)

21
43
68
76
67
22
73
66
73
95
100
87
100
99
79
71
66
44
50
53
57
57
57
51

Medium Clouds (% Sky Obscured)

42
60
68
76
97
92
100
100
100
100
100
100
100
99
51
25
25
14
24
30
69
77
100
74

High Clouds (% Sky Obscured)

19
10
68
75
85
77
65
76
31
97
67
75
76
3
0
0
0
0
0
0
0
0
19
78

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

6
2
7
33
25
19
19
50
77
95
95
95
95
95
95
95
84
53
30
42
70
95
81
69

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.4
1.6
2.1
2
1.8
1.5
1.1
1
0.6
0
0
0
0
0.9
0.6
0.3

Wind Speed/Direction (mph)

13
14
14
14
15
15
16
20
20
22
24
28
32
36
36
32
32
31
31
30
30
31
32
32

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
1
2
3
5
4
3
4
4
5
7
8
9
10
11
11
10
9
9
9
9
8
8
8

Relative Humidity (%)

70
70
71
70
70
69
64
67
67
72
85
88
91
93
93
84
82
77
81
81
80
79
76
80

Pressure (mb)

1005
1005
1005
1005
1005
1005
1004
1003
1003
1002
1001
999
997
994
992
991
991
991
991
991
991
992
992
992

Ozone (du)

331
329
321
312
309
308
308
302
298
295
291
289
289
289
292
293
294
296
296
301
306
307
305
299

Friday 5

Waning Gibbous 98%

17:29

10:20

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 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:06, Set: 16:19, Transit: 12:13. Moon - Rise: 17:29, Set: 10:20. Civil Dark: 16:57 - 07:28. Nautical Dark: 17:39 - 06:47. Astro Dark: 18:18 - 06:07

Total Clouds (% Sky Obscured)

97
100
93
87
86
90
84
83
87
91
84
55
85
38
12
77
67
100
100
90
95
96
79
100

Low Clouds (% Sky Obscured)

66
73
67
71
70
83
63
65
74
71
62
51
58
38
12
58
50
62
31
51
37
14
32
85

Medium Clouds (% Sky Obscured)

94
100
80
65
33
46
31
65
61
66
37
3
45
0
0
61
63
65
58
82
56
53
75
57

High Clouds (% Sky Obscured)

4
71
6
0
0
2
15
0
35
15
29
1
0
38
12
50
50
100
100
66
93
42
68
78

ISS Passover

Visibility (miles)

8
9
8
8
9
9
9
8
6
7
8
8
8
8
9
9
9
9
9
9
9
8
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

78
86
77
70
56
57
63
71
67
54
56
42
32
23
20
30
32
13
27
26
36
20
19
6

Precipitation Amount (mm)

0.5
0.6
0.5
0.5
0.3
0.3
0.3
0.4
0.4
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

33
33
34
33
33
33
34
35
34
34
34
33
32
31
29
28
28
26
23
22
20
17
15
14

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
11
11
11
11
11
12
12
12
12
12
11
12
12
12
12
12
12

Feels Like (°C)

1
1
1
1
1
1
1
2
1
2
2
2
2
3
3
4
3
4
5
5
6
6
6
7

Dew Point (°C)

9
8
9
8
8
8
8
9
9
9
9
9
9
9
9
9
8
8
8
8
9
9
9
10

Relative Humidity (%)

83
81
83
83
81
81
81
83
86
84
84
83
81
81
80
80
79
79
77
80
83
81
84
87

Pressure (mb)

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

Ozone (du)

296
298
295
293
294
292
294
297
298
301
303
305
303
301
299
297
298
298
298
298
298
297
300
298

Saturday 6

Waning Gibbous 93%

18:53

11:08

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:07, Set: 16:19, Transit: 12:13. Moon - Rise: 18:53, Set: 11:08. Civil Dark: 16:57 - 07:29. Nautical Dark: 17:39 - 06:48. Astro Dark: 18:18 - 06:08

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
98
88
58
65
65
67

Low Clouds (% Sky Obscured)

99
84
91
100
92
90
90
88
94
95
90
100
90
86
58
53
72
69
59
53
48
42
45
48

Medium Clouds (% Sky Obscured)

54
54
100
100
100
100
100
94
74
100
100
99
100
100
51
45
39
36
41
43
36
24
26
19

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
44
55
45
14
42
60
65

ISS Passover

Visibility (miles)

9
9
9
8
4
2
2
3
4
4
4
4
4
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

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

Precipitation Probability (%)

7
22
78
95
95
95
95
85
48
36
24
49
35
17
1
0
0
13
44
26
26
24
18
14

Precipitation Amount (mm)

0
0
0.4
0.8
1
0.8
0.9
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
14
15
17
18
19
18
19
21
22
23
23
23
23
19
18
17
17
15
14
12
12
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
92
93
96
96
96
96
96
96
98
96
96
96
93
90
87
89
90
90
90
92
92
92

Pressure (mb)

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

Ozone (du)

298
297
298
300
298
297
300
304
306
308
308
308
309
311
313
311
310
307
308
309
308
307
304
304

Sunday 7

Waning Gibbous 86%

20:20

11:40

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:08, Set: 16:19, Transit: 12:14. Moon - Rise: 20:20, Set: 11:40. Civil Dark: 16:57 - 07:30. Nautical Dark: 17:38 - 06:49. Astro Dark: 18:18 - 06:09

Total Clouds (% Sky Obscured)

66
77
89
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)

51
50
49
47
50
52
52
54
57
57
55
58
55
62
59
67
67
65
59
65
57
54
61
61

Medium Clouds (% Sky Obscured)

15
43
70
100
88
60
100
100
100
100
65
36
36
67
100
88
34
51
37
78
38
74
100
100

High Clouds (% Sky Obscured)

55
67
83
100
100
100
100
100
100
100
100
100
100
100
100
100
91
100
100
100
100
100
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
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
Very Light Rain
Light Rain

Precipitation Probability (%)

7
19
21
27
26
23
18
35
51
64
68
72
82
71
70
61
53
46
44
46
48
46
70
87

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.3
0.4
0.6
0.4
0.4
0.3
0.2
0
0
0
0
0
0.3
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
90
93
93
92
90
92
90
90
92
90
92
92
92
92
93
93
93
93
92
92
92
90
92

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005
1004

Ozone (du)

307
308
309
307
311
312
316
320
325
327
324
324
324
326
329
332
331
328
324
317
314
314
312
310

Monday 8

Waning Gibbous 77%

21:43

12:02

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:09, Set: 16:19, Transit: 12:14. Moon - Rise: 21:43, Set: 12:02. Civil Dark: 16:57 - 07:31. Nautical Dark: 17:38 - 06:50. Astro Dark: 18:18 - 06:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
92
85
80
80
78

Low Clouds (% Sky Obscured)

77
86
88
91
91
92
93
95
98
100
95
88
81
86
93
100
96
92
89
76
65
57
57
51

Medium Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
99
100
100
100
90
79
65
57
53
53
60
57
48
38
38

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
87
64
32
17
11
3
5
8

ISS Passover

Visibility (miles)

9
9
4
1
3
1
2
2
2
2
1
3
2
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
73
78
61
50
45
40
29
28
26
22
16
12

Precipitation Amount (mm)

0.8
0.8
1
1
1.4
2
2.2
2.1
2
2.1
1.4
0.7
0.3
0.4
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
16
16
17
18
21
28
32
33
35
35
36
36
35
35
34
33
31
31
31
28
25
24
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
96
96
96
98
96
95
95
95
95
95
93
93
92
92
90
92
92
93
93
92
90
90

Pressure (mb)

1003
1003
1001
1000
999
997
996
994
993
993
992
992
992
992
991
991
990
992
993
994
996
998
999
1000

Ozone (du)

307
302
301
300
299
298
297
296
295
293
292
292
292
292
291
291
290
289
289
288
289
290
291
294

Tuesday 9

Waning Gibbous 67%

23:01

12:19

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:10, Set: 16:19, Transit: 12:15. Moon - Rise: 23:01, Set: 12:19. Civil Dark: 16:57 - 07:32. Nautical Dark: 17:38 - 06:51. Astro Dark: 18:18 - 06:11

Total Clouds (% Sky Obscured)

73
76
74
72
70
75
86
73
64
56
54
55
59
68
74
80
69
58
48
51
53
56
59
63

Low Clouds (% Sky Obscured)

46
51
54
55
58
64
69
63
55
50
51
52
50
54
61
66
60
54
48
47
45
44
45
41

Medium Clouds (% Sky Obscured)

37
43
54
65
70
75
83
72
61
43
27
14
2
7
13
18
10
4
2
3
4
7
12
16

High Clouds (% Sky Obscured)

20
35
40
45
50
65
75
60
42
22
8
3
0
0
0
0
0
0
0
6
7
3
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
20
25
32
46
53
58
54
47
43
42
36
30
27
23
27
31
31
29
21
16
12
14
10

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
18
18
17
17
18
18
19
20
21
22
22
23
23
22
22
22
21
20
18
17
17
17
17

Chance of Frost

Temperature (°C)

11
11
11
12
12
12
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
88
86
84
84
83
83
83
83
84
81
80
77
77
79
77
80
81
86
84
86
86
87

Pressure (mb)

1001
1002
1002
1003
1003
1004
1004
1004
1005
1005
1006
1007
1007
1008
1009
1009
1010
1011
1012
1012
1013
1013
1014
1014

Ozone (du)

297
300
301
302
303
306
309
311
316
321
325
327
329
331
324
316
308
307
306
305
305
304
303
303

Wednesday 10

Waning Gibbous 56%

23:01

12:32

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
16 Bad
17 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)

66
71
77
82
80
79
78
86
93
100
100
100
100
99
98
95
91
87
83

Low Clouds (% Sky Obscured)

30
27
25
28
29
30
33
35
32
34
36
42
49
55
58
61
62
63
63

Medium Clouds (% Sky Obscured)

20
15
9
4
6
13
18
24
25
27
31
35
33
49
72
91
91
87
83

High Clouds (% Sky Obscured)

0
22
44
66
58
50
44
64
82
100
100
100
100
78
57
50
56
56
66

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

4
10
10
7
10
11
12
13
12
9
9
10
14
17
16
17
31
42
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

18
19
19
20
21
21
22
23
23
24
25
26
28
29
28
27
26
27
27

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
11
11
12
12
12
12
12
12
12
12
12
12

Feels Like (°C)

6
6
7
7
6
6
6
6
5
5
4
4
4
4
5
4
4
4
4

Dew Point (°C)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
10
9

Relative Humidity (%)

87
87
87
87
86
86
87
86
84
84
84
83
84
83
83
84
84
86
86

Pressure (mb)

1014
1014
1014
1014
1014
1013
1012
1011
1011
1011
1010
1010
1009
1008
1008
1007
1006
1005
1004

Ozone (du)

302
302
302
303
304
304
304
304
304
303
303
302
301
301
300
300
300
299
298

Forecast for St Ives, Cornwall, United Kingdom (50.22,-5.48)

Generated: 04/12/25 23:50:35. Forecast: 04/12/25 to 10/12/25. Timezone: UTC+0.00