Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 20

Waning Gibbous 62%

01:54

08:52

17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
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

Sun - Rise: 06:20, Set: 18:35, Transit: 12:28. Moon - Rise: 01:54, Set: 08:52. Civil Dark: 19:07 - 05:48. Nautical Dark: 19:46 - 05:09. Astro Dark: 20:25 - 04:29

Total Clouds (% Sky Obscured)

39
53
63
100
100
100
100
100
100
26
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
35
41
22
22
46
36
30
4
0
13
59
61
71
77
100
73
81
80
78
72
62
77
82

Medium Clouds (% Sky Obscured)

39
53
63
93
100
100
83
100
35
26
45
100
100
100
100
100
100
100
100
100
77
100
42
39

High Clouds (% Sky Obscured)

39
53
63
100
100
100
100
100
100
26
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
5
4
4
8
4
1
1
9
2
7
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
Very Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

0
0
0
5
46
34
38
5
1
2
6
34
45
89
95
95
95
95
82
95
95
56
25
51

Precipitation Amount (mm)

0
0
0
0
0.3
0
0
0
0
0
0
0
0
0.3
1.4
1.7
2
0.7
0.3
0.9
0.8
0
0
0.2

Wind Speed/Direction (mph)

28
26
25
21
17
14
12
11
9
8
8
10
14
15
17
16
18
22
20
21
21
19
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
87
87
90
90
90
92
93
93
95
96
98
96
95
95
96
95
93
93
93
93
90
87

Pressure (mb)

1011
1010
1010
1010
1010
1010
1009
1009
1008
1007
1006
1005
1004
1003
1003
1002
1002
1001
1000
998
998
997
997
996

Ozone (du)

330
331
338
341
340
346
350
361
364
363
364
368
368
366
367
368
368
369
372
379
384
385
391
387

Friday 21

Waning Gibbous 52%

02:56

09:41

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
16 Bad

Sun - Rise: 06:18, Set: 18:37, Transit: 12:28. Moon - Rise: 02:56, Set: 09:41. Civil Dark: 19:09 - 05:45. Nautical Dark: 19:47 - 05:07. Astro Dark: 20:27 - 04:27

Total Clouds (% Sky Obscured)

100
95
82
89
88
100
99
96
94
93
68
76
82
79
72
94
60
69
81
92
94
94
94
95

Low Clouds (% Sky Obscured)

82
89
79
89
88
94
83
67
74
89
68
76
82
79
70
59
58
68
63
82
87
88
89
90

Medium Clouds (% Sky Obscured)

56
41
30
52
66
63
62
51
75
44
0
0
0
0
2
3
2
2
45
14
43
25
40
26

High Clouds (% Sky Obscured)

100
63
17
33
40
42
89
78
46
5
0
3
3
2
18
69
39
35
17
73
60
65
65
65

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

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

Precipitation Probability (%)

71
82
36
24
33
46
47
48
16
20
2
12
8
9
19
9
11
23
31
24
14
22
23
22

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
16
17
18
22
21
21
21
20
18
16
15
12
10
9
8
9
11
10
13
18
20
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
86
88
90
91
90
91
93
93
91
95
95
93
95
93
93
93
90
90
90
90
91
93

Pressure (mb)

996
996
996
996
996
996
996
996
996
996
995
995
995
995
996
996
997
997
998
998
999
999
999
999

Ozone (du)

383
385
382
375
369
365
360
358
357
357
351
346
341
342
344
346
345
343
343
342
343
345
345
343

Saturday 22

Third Quarter 42%

03:46

10:45

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
16 Bad

Sun - Rise: 06:15, Set: 18:38, Transit: 12:28. Moon - Rise: 03:46, Set: 10:45. Civil Dark: 19:11 - 05:43. Nautical Dark: 19:49 - 05:05. Astro Dark: 20:29 - 04:24

Total Clouds (% Sky Obscured)

99
98
100
100
100
100
100
100
98
95
93
94
96
100
100
100
91
86
99
97
95
98
93
85

Low Clouds (% Sky Obscured)

97
96
100
100
100
100
100
100
90
89
83
75
84
100
100
100
91
86
99
97
95
98
87
75

Medium Clouds (% Sky Obscured)

24
24
26
41
49
55
55
55
52
48
45
51
46
39
39
21
17
12
17
23
28
30
24
17

High Clouds (% Sky Obscured)

59
20
19
70
70
62
65
46
46
40
39
49
60
60
50
45
8
16
53
38
34
45
60
37

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
5
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 (%)

24
12
23
17
28
30
25
25
35
25
20
19
9
9
7
14
5
1
0
1
6
0
2
2

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)

19
20
19
22
26
25
24
24
22
21
20
21
22
22
22
21
21
21
21
21
22
22
22
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
93
95
93
93
91
93
95
95
93
88
87
88
90
87
85
81
81
85
88
90
91
93

Pressure (mb)

999
1000
1000
1001
1002
1002
1003
1002
1002
1002
1003
1003
1003
1004
1005
1005
1006
1006
1007
1007
1008
1008
1008
1009

Ozone (du)

343
344
346
348
348
348
349
349
347
346
349
351
349
346
345
342
342
342
343
344
345
346
349
349

Sunday 23

Waning Crescent 31%

04:24

12:01

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
16 Bad

Sun - Rise: 06:13, Set: 18:40, Transit: 12:27. Moon - Rise: 04:24, Set: 12:01. Civil Dark: 19:12 - 05:41. Nautical Dark: 19:51 - 05:02. Astro Dark: 20:31 - 04:22

Total Clouds (% Sky Obscured)

75
66
61
59
64
64
71
74
71
68
65
62
64
53
62
80
77
76
78
77
69
66
81
91

Low Clouds (% Sky Obscured)

62
55
48
42
45
49
54
54
54
56
55
57
56
53
62
77
75
73
71
66
59
54
45
32

Medium Clouds (% Sky Obscured)

9
6
3
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)

17
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
26
50

ISS Passover

Visibility (miles)

6
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 (%)

1
2
1
0
1
0
0
0
0
0
1
0
0
0
1
3
7
1
0
0
1
8
3
2

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)

23
23
23
23
23
22
21
20
20
20
20
19
19
18
17
16
16
15
14
14
13
13
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
3
4
4
5
5
4
4
4
4
3
5
5
4
5
5
5
5
5
5
5

Dew Point (°C)

8
8
8
8
8
8
8
8
8
8
8
8
8
7
8
7
7
7
7
8
8
8
8
7

Relative Humidity (%)

95
93
93
91
91
93
95
93
95
93
91
91
91
91
91
85
84
84
85
87
88
88
88
87

Pressure (mb)

1010
1011
1011
1012
1013
1014
1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1020

Ozone (du)

342
337
334
333
330
327
325
325
322
314
306
301
301
301
301
303
302
297
292
288
290
291
287
281

Monday 24

Waning Crescent 22%

04:53

13:24

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
16 Bad

Sun - Rise: 06:11, Set: 18:41, Transit: 12:27. Moon - Rise: 04:53, Set: 13:24. Civil Dark: 19:14 - 05:39. Nautical Dark: 19:52 - 05:00. Astro Dark: 20:33 - 04:19

Total Clouds (% Sky Obscured)

100
100
100
91
70
85
100
87
95
100
100
100
100
97
99
100
98
96
94
96
98
100
99
97

Low Clouds (% Sky Obscured)

20
20
15
11
3
1
1
29
58
84
86
87
87
13
14
15
33
52
62
75
86
100
99
97

Medium Clouds (% Sky Obscured)

0
0
0
0
18
30
40
39
38
36
31
34
94
77
80
83
68
55
42
40
43
35
18
16

High Clouds (% Sky Obscured)

76
86
91
91
70
85
100
87
84
80
82
83
99
95
96
98
66
33
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
8
6
4
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
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
0
1
0
0
0
0
1
3
11
18
25
40
13
17
19
19
17
22
24
23
21
18
12

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
85
85
90
90
88
90
90
88
85
87
87
84
85
87
88
91
91
95
95
96
96
95

Pressure (mb)

1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

275
269
265
261
254
251
248
246
244
243
242
241
241
242
244
246
248
251
255
258
258
258
258
260

Tuesday 25

Waning Crescent 13%

05:14

14:50

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
16 Bad

Sun - Rise: 06:09, Set: 18:43, Transit: 12:27. Moon - Rise: 05:14, Set: 14:50. Civil Dark: 19:15 - 05:36. Nautical Dark: 19:54 - 04:58. Astro Dark: 20:35 - 04:17

Total Clouds (% Sky Obscured)

95
85
73
59
74
87
99
96
92
88
87
87
88
89
90
91
87
83
79
82
82
84
81
84

Low Clouds (% Sky Obscured)

95
85
73
59
74
87
98
94
90
87
75
70
71
73
72
72
67
66
74
68
61
55
50
46

Medium Clouds (% Sky Obscured)

14
12
10
15
15
11
4
3
2
0
7
19
34
49
65
78
52
26
0
21
37
46
28
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
13
21
30
38
33
28
20
17
17
15
15
20

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 (%)

1
5
5
3
11
15
17
17
16
14
13
11
3
4
3
1
7
9
10
9
9
7
9
8

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)

7
7
6
6
5
5
4
4
4
5
5
6
7
9
9
10
10
11
12
12
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
91
93
90
90
88
90
90
91
93
91
93
90
88
85
84
83
83
85
88
91
88

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017

Ozone (du)

262
265
266
267
268
270
273
275
280
284
288
294
300
306
311
316
321
320
318
317
316
316
315
317

Wednesday 26

Waning Crescent 6%

05:31

16:17

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: 06:07, Set: 18:45, Transit: 12:26. Moon - Rise: 05:31, Set: 16:17. Civil Dark: 19:17 - 05:34. Nautical Dark: 19:56 - 04:55. Astro Dark: 20:37 - 04:14

Total Clouds (% Sky Obscured)

86
88
91
96
95
97
97
97
98
97
88
80
71
57
44
34
33
34
32

Low Clouds (% Sky Obscured)

43
43
51
57
52
47
42
58
70
81
76
69
61
53
44
34
27
16
5

Medium Clouds (% Sky Obscured)

1
11
19
27
32
45
45
40
45
45
40
35
27
16
9
2
4
8
9

High Clouds (% Sky Obscured)

30
30
40
45
45
45
40
22
16
10
7
7
1
1
1
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
7
5
3
3
3
2
4
7
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

Precipitation Type

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

Precipitation Probability (%)

4
6
9
11
25
38
50
69
85
95
94
86
72
56
39
24
26
28
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.5
0.7
0.6
0.5
0.4
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
13
12
12
13
14
14
15
16
20
20
21
26
25
26
26
27
29

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
4
4
4
4
4
4
3
3
3
3
3
3
1
-1
-1
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

84
81
81
82
82
84
85
87
90
91
93
91
90
87
85
82
81
81
82

Pressure (mb)

1017
1016
1016
1016
1015
1014
1014
1013
1011
1010
1008
1008
1008
1008
1008
1008
1009
1009
1009

Ozone (du)

318
320
321
322
323
325
327
329
337
345
354
358
361
365
366
366
367
366
365

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

Generated: 20/03/25 17:40:52. Forecast: 20/03/25 to 26/03/25. Timezone: UTC+0.00