Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 2%

06:00

20:42

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: 06:03, Set: 20:07, Transit: 13:06. Moon - Rise: 06:00, Set: 20:42. Civil Dark: 20:43 - 05:27. Nautical Dark: 21:28 - 04:42. Astro Dark: 22:19 - 03:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
84
76
100
89
45
67
56
52
50
63
66
61
55
54
69
84
53
92

Low Clouds (% Sky Obscured)

99
95
100
80
57
51
0
0
26
20
45
67
56
52
47
61
63
57
51
54
17
71
23
28

Medium Clouds (% Sky Obscured)

54
71
57
52
57
73
65
76
15
20
18
0
0
0
0
0
0
0
0
0
41
27
21
38

High Clouds (% Sky Obscured)

49
4
8
30
99
100
71
64
84
69
9
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
5
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
13
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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
None
None
None
None
None

Precipitation Probability (%)

59
95
46
34
1
0
0
0
3
0
0
0
0
0
0
0
0
0
2
10
1
15
12
10

Precipitation Amount (mm)

0.3
0.2
0.3
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
15
12
10
6
6
6
6
6
6
5
5
5
6
7
8
11
11
11
11
11
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
12
11
9
8
8
8
7
6
6
6
6
6
6
6
6
7
7
7
6
6
8
9

Relative Humidity (%)

93
96
96
96
95
93
96
96
94
94
96
98
98
96
93
90
87
82
78
71
63
63
71
71

Pressure (mb)

1018
1018
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

366
361
363
366
370
372
373
376
382
388
390
392
395
396
396
396
396
396
398
399
400
400
401
405

Saturday 18

Waxing Crescent 7%

06:25

22:16

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

Sun - Rise: 06:01, Set: 20:09, Transit: 13:06. Moon - Rise: 06:25, Set: 22:16. Civil Dark: 20:45 - 05:25. Nautical Dark: 21:30 - 04:39. Astro Dark: 22:21 - 03:47

Total Clouds (% Sky Obscured)

61
32
31
64
42
23
0
0
0
6
30
39
35
0
0
33
34
25
37
45
54
62
52
51

Low Clouds (% Sky Obscured)

32
28
31
64
42
23
0
0
0
6
30
39
35
0
0
33
34
25
33
41
51
62
52
44

Medium Clouds (% Sky Obscured)

19
8
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
6

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
3
0
0
0
0
0
4
5
6
2
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 (%)

10
26
21
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
73
81
91
90
90
88
88
90
90
90
89
91
89
88
82
78
69
62
59
57
56
55
56

Pressure (mb)

1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1027
1027
1026
1026
1026

Ozone (du)

411
417
418
419
422
423
418
413
410
406
404
403
402
402
402
401
400
399
398
396
396
395
395
394

Sunday 19

Waxing Crescent 14%

07:01

23:48

17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK
01 OK
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: 05:59, Set: 20:10, Transit: 13:05. Moon - Rise: 07:01, Set: 23:48. Civil Dark: 20:47 - 05:22. Nautical Dark: 21:32 - 04:37. Astro Dark: 22:24 - 03:44

Total Clouds (% Sky Obscured)

42
82
100
97
52
41
35
41
36
33
57
71
81
79
78
79
89
71
65
84
89
95
75
88

Low Clouds (% Sky Obscured)

38
31
46
38
41
41
35
41
34
12
33
40
70
65
50
59
64
20
24
46
62
72
55
67

Medium Clouds (% Sky Obscured)

7
24
40
23
5
0
4
0
0
4
9
11
7
9
9
13
20
15
11
22
27
26
25
20

High Clouds (% Sky Obscured)

1
0
5
22
1
1
1
1
1
8
1
1
10
12
13
13
6
13
9
13
1
1
1
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
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
7
4
18
5
4
6
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
11
11
8
7
7
5
4
3
3
3
2
1
1
1
2
3
4
6
7
7
7
6
8

Dew Point (°C)

4
5
7
5
5
4
4
4
4
4
3
3
1
0
-0
1
2
2
3
3
3
4
3
3

Relative Humidity (%)

56
64
73
74
79
81
81
85
90
90
88
88
83
76
72
72
68
63
61
59
58
61
59
58

Pressure (mb)

1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1026
1026
1025
1025
1025
1024
1024
1024
1024

Ozone (du)

392
391
388
385
384
383
382
381
381
381
383
383
385
386
388
389
389
388
387
388
389
391
391
391

Monday 20

Waxing Crescent 24%

07:53

01:11

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: 05:57, Set: 20:12, Transit: 13:05. Moon - Rise: 07:53, Set: 01:11. Civil Dark: 20:48 - 05:20. Nautical Dark: 21:34 - 04:34. Astro Dark: 22:27 - 03:41

Total Clouds (% Sky Obscured)

79
65
72
73
72
68
65
69
61
48
47
46
51
66
73
80
79
78
78
80
82
85
87
78

Low Clouds (% Sky Obscured)

49
29
34
44
58
68
65
69
61
48
47
46
51
59
58
61
56
54
53
59
64
71
78
66

Medium Clouds (% Sky Obscured)

17
13
17
17
18
13
6
0
0
0
0
7
14
26
30
29
35
40
43
47
35
22
18
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
2
1
1
1
2
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
3
0
0
2
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 (%)

11
9
11
21
19
8
3
0
1
1
0
0
0
0
1
1
0
12
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
72
76
75
81
93
94
96
96
96
96
96
98
100
98
94
93
87
73
66
72
66
62
66

Pressure (mb)

1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024

Ozone (du)

392
392
392
392
391
391
392
391
391
392
392
391
389
388
388
387
387
387
387
387
387
387
386
385

Tuesday 21

Waxing Crescent 24%

09:04

02:14

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

Sun - Rise: 05:55, Set: 20:14, Transit: 13:05. Moon - Rise: 09:04, Set: 02:14. Civil Dark: 20:50 - 05:18. Nautical Dark: 21:36 - 04:32. Astro Dark: 22:30 - 03:37

Total Clouds (% Sky Obscured)

71
61
41
29
17
25
31
36
40
44
47
49
47
46
14
19
19
21
18
13
20
27
34
23

Low Clouds (% Sky Obscured)

59
55
36
17
0
3
7
10
20
30
39
43
46
46
14
19
19
21
18
13
20
27
32
22

Medium Clouds (% Sky Obscured)

11
2
4
8
11
16
18
22
23
21
21
14
6
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

12
8
1
1
3
10
4
1
2
2
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
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
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)

15
14
14
13
13
13
13
13
12
12
12
11
10
10
10
10
12
12
13
13
14
14
14
14

Chance of Frost

Temperature (°C)

12
11
10
9
8
6
5
4
4
3
3
3
2
2
2
4
6
8
10
12
13
13
14
14

Feels Like (°C)

7
6
6
5
3
2
0
0
0
0
-1
-1
-1
-1
-1
0
0
0
2
3
4
10
10
10

Dew Point (°C)

6
6
5
4
3
2
1
1
1
1
1
-1
-0
0
-1
1
2
2
4
5
6
6
7
7

Relative Humidity (%)

66
67
68
70
73
75
72
77
83
86
83
80
83
88
82
76
71
65
65
63
62
61
61
61

Pressure (mb)

1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1027
1027
1027
1026
1026
1026
1025
1025
1024

Ozone (du)

383
383
384
384
384
384
386
387
387
387
385
383
383
383
385
387
389
391
386
382
378
378
378
378

Wednesday 22

Waxing Crescent 35%

10:27

02:58

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

Sun - Rise: 05:53, Set: 20:16, Transit: 13:05. Moon - Rise: 10:27, Set: 02:58. Civil Dark: 20:52 - 05:16. Nautical Dark: 21:39 - 04:29. Astro Dark: 22:33 - 03:34

Total Clouds (% Sky Obscured)

11
0
0
0
0
20
40
57
59
58
63
67
74
81
82
85
82
55
35
20
31
42
55
48

Low Clouds (% Sky Obscured)

11
0
0
0
0
15
27
37
40
48
57
66
74
81
78
74
67
47
35
20
31
42
55
48

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
3
6
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
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)

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

Chance of Frost

Temperature (°C)

14
13
13
11
9
7
6
5
4
3
3
2
3
3
3
4
6
7
9
11
13
13
14
14

Feels Like (°C)

10
10
11
9
8
9
7
6
5
1
1
1
1
0
0
0
0
1
1
2
2
12
11
11

Dew Point (°C)

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

Relative Humidity (%)

64
70
75
81
87
94
96
96
96
96
100
100
100
96
96
91
85
81
76
68
64
63
63
63

Pressure (mb)

1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1024

Ozone (du)

378
379
379
382
384
387
388
390
391
393
395
397
396
396
395
391
386
382
380
378
376
375
374
373

Thursday 23

Waxing Crescent 46%

11:53

03:27

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

Sun - Rise: 05:51, Set: 20:17, Transit: 13:05. Moon - Rise: 11:53, Set: 03:27. Civil Dark: 20:54 - 05:14. Nautical Dark: 21:41 - 04:26. Astro Dark: 22:36 - 03:31

Total Clouds (% Sky Obscured)

39
30
29
29
28
37
45
55
40
27
13
22
29
40
41
43
45
61
77
92

Low Clouds (% Sky Obscured)

39
30
29
29
28
37
45
55
40
27
13
22
29
40
40
40
42
57
69
81

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
2
3
3
6
10
11
3
1
0
0
0
0
0
0
1
1
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

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
None
None
None
None

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
12
11
9
8
6
5
4
4
3
2
3
3
4
5
7
8
8
8

Feels Like (°C)

11
11
12
10
10
10
9
8
8
2
2
2
1
1
1
2
3
3
4
4

Dew Point (°C)

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

Relative Humidity (%)

68
74
77
84
88
94
91
91
89
93
94
96
94
93
91
85
81
75
74
74

Pressure (mb)

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

Ozone (du)

373
373
373
375
377
379
379
379
379
378
378
378
379
380
381
381
382
382
383
383

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 17/04/26 17:59:52. Forecast: 17/04/26 to 23/04/26. Timezone: UTC+1.00