Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 23

Waning Crescent 17%

04:31

15:47

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 OK
16 OK
17 OK
18 OK
19 Good

Sun - Rise: 05:41, Set: 20:12, Transit: 12:57. Moon - Rise: 04:31, Set: 15:47. Civil Dark: 20:49 - 05:03. Nautical Dark: 21:37 - 04:15. Astro Dark: 22:34 - 03:17

Total Clouds (% Sky Obscured)

60
47
51
76
81
92
91
92
98
88
91
89
91
90
90
94
93
78
71
40
42
37
29
5

Low Clouds (% Sky Obscured)

58
47
46
42
66
85
83
87
94
87
87
82
81
55
57
74
66
53
47
40
42
37
29
5

Medium Clouds (% Sky Obscured)

33
47
41
21
12
12
17
19
18
20
22
31
35
28
43
39
30
21
26
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
2
10
29
16
12
3
3
1
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
2
0
0
0
0
0
1
0
5
2
0
1
6
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)

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

Chance of Frost

Temperature (°C)

11
9
8
8
7
7
7
7
7
7
7
7
8
9
11
12
13
14
14
14
14
14
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
90
90
93
94
96
98
96
98
98
96
91
84
74
65
61
58
57
59
60
64
68
76

Pressure (mb)

1016
1017
1018
1019
1019
1019
1020
1020
1020
1020
1020
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

355
354
353
351
351
351
351
351
351
353
354
354
354
354
353
354
354
356
357
361
363
362
359
354

Thursday 24

Waning Crescent 9%

04:42

17:16

20 Good
21 Good
22 Good
23 Good
00 OK
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

Sun - Rise: 05:39, Set: 20:13, Transit: 12:57. Moon - Rise: 04:42, Set: 17:16. Civil Dark: 20:51 - 05:01. Nautical Dark: 21:40 - 04:12. Astro Dark: 22:38 - 03:13

Total Clouds (% Sky Obscured)

0
0
0
0
32
45
58
83
71
75
73
77
80
69
54
78
75
74
75
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
32
45
58
83
71
75
73
77
80
69
54
78
74
67
71
83
39
49
20
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
15
100
83
91

High Clouds (% Sky Obscured)

0
0
0
0
0
3
2
3
1
2
2
2
3
4
5
21
21
32
31
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
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
1
1
0
0
0
0
0
0
21
0
0
4
12
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
6
6
5
5
4
4
5
5
5
6
7
8
9
11
10
11
11
13
12
12
12
11

Dew Point (°C)

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

Relative Humidity (%)

85
91
93
94
93
94
94
94
96
96
96
93
88
79
73
67
62
58
55
53
52
63
76
79

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1023
1023
1022
1022
1022
1021
1021
1021
1021

Ozone (du)

350
348
346
346
346
345
344
342
341
340
339
338
337
337
336
335
334
334
336
336
337
337
339
339

Friday 25

Waning Crescent 3%

04:54

18:49

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
17 Bad
18 Bad
19 Bad

Sun - Rise: 05:37, Set: 20:15, Transit: 12:57. Moon - Rise: 04:54, Set: 18:49. Civil Dark: 20:53 - 04:59. Nautical Dark: 21:42 - 04:09. Astro Dark: 22:41 - 03:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
91
94
100
77
67
100
100
100
100
100
100
100
100
100
100
99
99
98
99

Low Clouds (% Sky Obscured)

0
0
28
25
48
40
36
52
54
55
58
32
24
47
82
74
80
73
72
77
75
72
46
39

Medium Clouds (% Sky Obscured)

88
92
77
64
51
52
57
48
31
46
100
100
100
100
100
99
100
85
70
67
99
98
96
97

High Clouds (% Sky Obscured)

100
100
100
100
100
88
92
100
72
29
100
94
94
100
84
100
100
84
64
46
41
41
41
31

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 (%)

1
0
0
0
0
0
7
15
25
25
24
23
22
22
22
23
27
20
30
31
36
34
25
24

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
5
4
4
4
4
4
4
5
5
5
6
7
8
10
12
13
13
13
14
13
13
11

Dew Point (°C)

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

Relative Humidity (%)

83
88
91
93
93
94
94
94
93
93
93
88
82
77
71
67
64
61
58
55
57
67
74
79

Pressure (mb)

1021
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023

Ozone (du)

339
338
339
339
340
341
341
341
343
343
343
344
345
345
345
346
346
347
349
348
349
349
349
349

Saturday 26

Waning Crescent 0%

05:08

No Set

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
17 Bad
18 Bad
19 Bad

Sun - Rise: 05:35, Set: 20:17, Transit: 12:57. Moon - Rise: 05:08, Set: No Set. Civil Dark: 20:55 - 04:56. Nautical Dark: 21:44 - 04:07. Astro Dark: 22:44 - 03:06

Total Clouds (% Sky Obscured)

99
100
99
97
96
96
97
97
97
97
97
92
85
80
76
62
79
94
96
99
99
100
100
94

Low Clouds (% Sky Obscured)

32
26
17
9
7
16
28
39
46
47
48
32
16
0
7
8
14
43
53
51
35
19
16
12

Medium Clouds (% Sky Obscured)

99
100
99
97
96
96
94
93
90
61
47
40
41
42
40
42
40
37
48
51
89
71
76
75

High Clouds (% Sky Obscured)

26
20
15
15
20
15
20
20
15
15
14
0
0
1
1
2
13
20
20
15
43
72
100
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
8
9
9
7
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
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
3
4
3
0
2
2
0
2
2
0
0
0
0
0
2
26
30
24
20
5
25
14
6

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

Chance of Frost

Temperature (°C)

12
11
10
9
9
9
9
9
9
9
9
9
11
12
14
15
16
17
17
18
17
17
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
90
90
87
87
85
84
84
85
85
87
87
80
75
70
63
62
63
60
66
69
75
80

Pressure (mb)

1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023

Ozone (du)

350
352
354
355
355
356
355
355
354
354
358
359
357
353
354
357
358
356
356
354
354
357
361
365

Sunday 27

New Moon 1%

05:26

20:25

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

Sun - Rise: 05:33, Set: 20:19, Transit: 12:56. Moon - Rise: 05:26, Set: 20:25. Civil Dark: 20:57 - 04:54. Nautical Dark: 21:46 - 04:04. Astro Dark: 22:47 - 03:02

Total Clouds (% Sky Obscured)

88
82
66
67
51
62
68
73
42
31
31
40
34
16
4
5
5
22
39
56
39
26
20
23

Low Clouds (% Sky Obscured)

9
3
0
1
2
5
5
4
1
1
0
0
0
0
0
0
0
18
36
56
39
26
20
17

Medium Clouds (% Sky Obscured)

75
44
33
25
22
25
28
31
17
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

46
59
28
27
8
21
30
31
16
14
30
24
29
16
4
5
5
22
36
29
24
20
16
10

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 (%)

4
0
0
0
0
0
0
0
0
0
0
0
0
0
6
8
6
12
14
16
17
18
19
17

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

Chance of Frost

Temperature (°C)

14
13
12
11
10
10
10
10
9
9
9
9
11
13
15
16
18
19
19
19
19
18
18
17

Feels Like (°C)

13
12
11
10
9
9
8
8
8
8
8
8
9
10
11
12
13
14
18
18
18
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

83
86
87
90
91
90
88
88
90
95
91
88
83
77
73
68
65
62
64
65
68
71
76
82

Pressure (mb)

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

Ozone (du)

366
365
361
359
355
353
350
350
350
349
346
344
343
343
342
341
339
338
336
335
333
332
332
331

Monday 28

Waxing Crescent 5%

05:50

22:04

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

Sun - Rise: 05:31, Set: 20:20, Transit: 12:56. Moon - Rise: 05:50, Set: 22:04. Civil Dark: 20:59 - 04:52. Nautical Dark: 21:49 - 04:02. Astro Dark: 22:51 - 02:58

Total Clouds (% Sky Obscured)

17
18
19
27
20
20
18
15
20
26
28
43
62
74
74
71
68
70
72
69
49
27
1
1

Low Clouds (% Sky Obscured)

13
7
3
2
1
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
5
10
14
9
5
1
2
3
4
10
9
12
10
9
5
14
27
45
24
11
0
0

High Clouds (% Sky Obscured)

9
9
10
12
14
11
11
9
17
24
28
38
50
59
58
55
48
51
43
41
26
15
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 (%)

13
4
8
7
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)

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

Chance of Frost

Temperature (°C)

15
13
12
11
10
9
8
8
8
8
8
9
11
13
15
16
18
19
19
19
19
18
17
16

Feels Like (°C)

15
14
13
12
11
11
7
7
7
6
7
6
9
10
11
12
13
15
18
17
16
16
16
17

Dew Point (°C)

13
11
10
9
8
7
7
7
6
7
7
7
8
9
9
10
10
10
10
10
10
10
10
11

Relative Humidity (%)

85
87
90
90
90
90
90
91
91
91
90
88
80
74
67
64
60
56
57
57
56
61
65
70

Pressure (mb)

1022
1022
1023
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1019
1019
1019
1019

Ozone (du)

330
330
330
330
330
329
330
330
330
330
330
330
330
330
330
330
330
330
331
331
332
332
333
333

Tuesday 29

Waxing Crescent 12%

06:27

23:38

20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 Good
09 Good
10 OK
11 OK
12 OK

Sun - Rise: 05:29, Set: 20:22, Transit: 12:56. Moon - Rise: 06:27, Set: 23:38. Civil Dark: 21:01 - 04:50. Nautical Dark: 21:51 - 03:59. Astro Dark: 22:54 - 02:55

Total Clouds (% Sky Obscured)

0
0
1
1
1
7
12
14
15
22
28
24
16
8
18
29
42

Low Clouds (% Sky Obscured)

0
0
0
0
0
7
12
14
15
22
21
10
2
0
2
4
5

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
3
5
6
3
0
6
12
17

High Clouds (% Sky Obscured)

0
0
1
1
1
3
3
3
3
2
1
1
1
1
1
2
2

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
12
10
10
9
9
9
8
8
8
9
9
12
14
16
17
19

Feels Like (°C)

12
12
11
11
10
9
6
7
7
7
6
7
9
10
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

73
73
76
81
84
88
90
93
95
93
93
91
83
76
69
66
63

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1019
1019

Ozone (du)

333
334
334
334
334
334
334
334
334
335
335
336
336
337
337
337
338

Forecast for Castle, Cambridgeshire, United Kingdom (52.21,0.10)

Generated: 23/04/25 20:02:48. Forecast: 23/04/25 to 29/04/25. Timezone: UTC+1.00