Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 1

Full Moon 100%

20:48

05:09

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

Sun - Rise: 05:26, Set: 20:26, Transit: 12:57. Moon - Rise: 20:48, Set: 05:09. Civil Dark: 21:05 - 04:47. Nautical Dark: 21:56 - 03:55. Astro Dark: 23:01 - 02:48

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
20
48
82
93
44
46
29
46
88
71
71
79
0
23
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
16
33
83
30
46
29
0
0
26
37
27
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
5
12
21
16
8
0
0
3
4
22
53
29
0
17
30
23

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
21
42
21
12
11
0
10
65
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
5
5
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
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
2
8
30
45
51
48
31
1
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
10
13
15
17
19
21
22
23
23
24
23
22
20
19
17
15
14
13
12
12
11
10
9

Feels Like (°C)

8
10
11
13
16
18
19
21
22
23
23
22
21
20
20
17
15
13
13
12
11
10
9
8

Dew Point (°C)

7
7
8
8
10
11
12
13
14
15
16
18
19
18
17
15
14
13
12
12
11
10
9
8

Relative Humidity (%)

87
81
71
64
62
59
59
58
57
58
63
74
83
85
89
92
93
95
95
96
96
96
96
95

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1020
1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1018
1018
1018
1018

Ozone (du)

376
377
379
379
378
377
377
376
376
374
371
369
369
370
370
369
368
365
369
368
367
365
364
364

Saturday 2

Waning Gibbous 98%

22:03

05:31

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:24, Set: 20:27, Transit: 12:57. Moon - Rise: 22:03, Set: 05:31. Civil Dark: 21:07 - 04:45. Nautical Dark: 21:58 - 03:52. Astro Dark: 23:05 - 02:44

Total Clouds (% Sky Obscured)

100
99
55
57
64
70
94
92
81
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
5
25
29
25
0
0
0
60
55
36
25
79
83
100
93
84
84
85
89
91

Medium Clouds (% Sky Obscured)

40
99
55
57
64
60
75
58
25
65
100
100
100
98
100
100
100
100
85
98
100
100
100
95

High Clouds (% Sky Obscured)

100
99
55
57
45
27
44
48
43
95
100
76
100
100
100
100
100
100
100
100
100
100
100
72

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
7
8
6
2
9
4
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
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
6
43
90
87
87
95
95
95
95
75
78
81
88
77

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.7
0.6
0.2
2.3
1.4
0.8
0.7
0.2
0.3
0.3
0.5
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
10
12
13
15
16
18
19
19
20
21
20
19
16
15
14
14
13
12
12
12
12
12
12

Feels Like (°C)

7
8
10
11
13
14
16
17
19
19
19
19
19
16
14
11
12
12
11
10
10
10
11
10

Dew Point (°C)

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

Relative Humidity (%)

93
91
87
79
74
66
58
54
55
56
57
58
60
73
86
87
96
96
96
96
96
96
96
96

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1016
1015
1015
1014
1013
1012
1012
1012
1012
1011
1011
1010
1009
1008
1007
1007
1006

Ozone (du)

365
368
372
374
376
376
378
378
378
377
376
376
375
374
373
371
372
373
372
374
375
377
379
383

Sunday 3

Waning Gibbous 95%

23:14

06:01

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:22, Set: 20:29, Transit: 12:57. Moon - Rise: 23:14, Set: 06:01. Civil Dark: 21:08 - 04:42. Nautical Dark: 22:01 - 03:50. Astro Dark: 23:09 - 02:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
93
89
92
98
100
91
88
56
66
82
87
86
89
90
95
98
100
97
95

Low Clouds (% Sky Obscured)

97
100
100
98
95
93
89
92
98
100
91
88
56
66
82
80
83
84
86
92
96
100
96
92

Medium Clouds (% Sky Obscured)

77
64
61
78
42
45
43
42
50
41
22
17
23
20
19
15
19
22
17
18
31
33
32
31

High Clouds (% Sky Obscured)

41
50
80
100
100
45
1
2
15
2
2
1
0
2
0
6
2
2
0
2
0
0
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
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 (%)

49
31
36
27
14
37
51
52
41
41
43
44
45
40
33
11
6
14
3
4
12
2
18
28

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
9
11
11
12
12
13
14
13
13
12
10
8
7
6
6
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
93
95
92
83
75
69
68
68
66
66
67
75
80
87
93
95
96
95
95
95
95
95
95

Pressure (mb)

1006
1006
1006
1006
1007
1007
1007
1007
1008
1008
1008
1008
1009
1009
1010
1011
1011
1012
1012
1012
1012
1013
1013
1013

Ozone (du)

386
385
387
388
388
388
388
388
388
388
391
393
392
388
386
385
383
383
383
383
382
381
381
382

Monday 4

Waning Gibbous 90%

00:18

06:01

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
23 Bad
00 Bad
01 OK
02 OK
03 Good
04 OK
05 OK

Sun - Rise: 05:20, Set: 20:31, Transit: 12:56. Moon - Rise: 00:18, Set: 06:01. Civil Dark: 21:10 - 04:40. Nautical Dark: 22:03 - 03:47. Astro Dark: 23:13 - 02:36

Total Clouds (% Sky Obscured)

92
89
86
83
84
85
87
87
85
73
69
84
84
71
69
58
50
59
58
32
21
6
17
37

Low Clouds (% Sky Obscured)

88
79
69
58
63
67
73
64
56
48
50
53
55
51
47
44
46
50
50
27
17
6
17
37

Medium Clouds (% Sky Obscured)

30
30
31
28
33
39
44
41
42
42
42
46
50
36
24
10
15
22
26
16
10
0
0
0

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
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
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 (%)

25
0
13
2
9
17
23
19
9
7
7
15
19
16
6
6
5
3
0
1
1
0
1
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)

5
5
4
4
4
4
4
5
5
6
6
5
5
5
5
5
5
4
4
5
4
4
4
4

Chance of Frost

Temperature (°C)

9
9
10
11
11
13
13
14
15
16
16
16
16
15
13
12
11
10
10
9
8
8
7
8

Feels Like (°C)

8
8
8
9
10
11
12
13
14
15
16
16
15
14
13
11
10
10
10
9
9
9
8
8

Dew Point (°C)

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

Relative Humidity (%)

96
96
93
90
88
83
80
75
72
68
64
62
64
73
80
84
90
95
95
93
93
93
93
94

Pressure (mb)

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

Ozone (du)

383
384
385
385
386
388
388
388
387
385
384
384
384
384
386
389
391
391
391
391
390
388
385
384

Tuesday 5

Waning Gibbous 83%

01:09

06:43

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:19, Set: 20:32, Transit: 12:56. Moon - Rise: 01:09, Set: 06:43. Civil Dark: 21:12 - 04:38. Nautical Dark: 22:06 - 03:45. Astro Dark: 23:17 - 02:32

Total Clouds (% Sky Obscured)

51
56
63
74
84
92
84
81
93
96
97
95
86
70
72
79
89
93
96
96
97
97
96
94

Low Clouds (% Sky Obscured)

47
48
48
47
48
55
57
61
69
74
72
70
67
63
59
54
57
59
62
73
84
95
92
88

Medium Clouds (% Sky Obscured)

0
9
21
30
36
42
55
52
49
46
39
40
46
57
45
35
39
43
47
50
53
59
64
55

High Clouds (% Sky Obscured)

0
1
2
3
2
1
0
0
0
0
0
0
0
1
0
0
21
39
50
34
18
2
3
3

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
3
5
5
15
19
21
21
19
16
13
10
5
22
17
2
2
2
0
1
1
0
2
3

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)

5
5
6
7
8
9
9
9
10
12
13
13
11
11
8
7
6
5
5
4
4
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
75
73
71
71
70
63
58
57
58
61
67
68
76
83
88
96
95
93
90
90
88
88
87

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012

Ozone (du)

382
381
379
379
379
379
379
379
379
379
379
379
379
380
380
380
381
379
378
377
378
379
380
381

Wednesday 6

Waning Gibbous 75%

01:47

07:38

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:17, Set: 20:34, Transit: 12:56. Moon - Rise: 01:47, Set: 07:38. Civil Dark: 21:14 - 04:36. Nautical Dark: 22:08 - 03:42. Astro Dark: 23:21 - 02:27

Total Clouds (% Sky Obscured)

91
86
84
78
72
61
59
62
67
74
83
92
99
98
95
93
95
97
99
99
99
99
98
98

Low Clouds (% Sky Obscured)

84
78
72
69
61
50
40
39
38
40
52
62
74
75
63
49
50
54
58
58
57
57
56
55

Medium Clouds (% Sky Obscured)

39
35
28
27
18
16
17
19
23
31
47
65
78
71
66
73
72
72
69
67
67
69
60
54

High Clouds (% Sky Obscured)

4
3
4
5
3
2
2
3
5
7
5
4
3
7
9
13
17
23
34
36
51
56
60
59

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
8
8
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 (%)

3
8
9
5
13
17
20
25
29
30
34
33
27
30
34
37
39
37
29
32
33
30
27
23

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
6
6
7
7
8
9
13
13
13
13
12
12
8
9
8
8
8
7
6
6
6
6

Dew Point (°C)

5
6
5
5
5
5
5
5
6
6
7
7
7
7
7
7
7
7
7
7
6
7
6
6

Relative Humidity (%)

85
85
78
72
66
63
61
57
59
60
61
65
71
77
81
87
93
93
96
96
94
96
96
96

Pressure (mb)

1012
1012
1012
1012
1012
1012
1011
1011
1011
1010
1010
1010
1010
1011
1011
1011
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

383
384
386
388
389
390
392
393
393
393
393
394
394
394
394
394
394
393
393
392
394
397
399
401

Thursday 7

Waning Gibbous 66%

02:15

08:44

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
23 Bad
00 Bad

Sun - Rise: 05:15, Set: 20:36, Transit: 12:56. Moon - Rise: 02:15, Set: 08:44. Civil Dark: 21:16 - 04:34. Nautical Dark: 22:10 - 03:39. Astro Dark: 23:25 - 02:23

Total Clouds (% Sky Obscured)

98
98
99
100
100
99
99
98
98
98
93
84
74
72
73
76
63
50
39

Low Clouds (% Sky Obscured)

55
58
56
57
58
59
59
67
75
83
69
55
41
52
70
76
63
50
39

Medium Clouds (% Sky Obscured)

43
67
84
100
84
67
55
61
64
69
63
57
51
46
47
46
38
28
21

High Clouds (% Sky Obscured)

63
57
60
68
48
26
6
21
41
49
27
17
3
2
1
1
1
2
5

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
19
20
19
26
32
37
39
41
44
45
45
46
44
42
40
35
29
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
91
88
85
78
71
64
65
67
68
71
73
76
80
85
90
93
93

Pressure (mb)

1011
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015

Ozone (du)

403
405
405
405
406
405
404
404
403
402
401
399
397
395
394
393
392
393
395

Forecast for Bourn, Cambridgeshire, United Kingdom (52.20,-0.05)

Generated: 01/05/26 06:25:09. Forecast: 01/05/26 to 07/05/26. Timezone: UTC+1.00