Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 23

Waning Crescent 17%

04:37

15:55

18 Bad
19 Bad
20 Bad
21 Good
22 OK
23 OK
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 OK
17 Good

Sun - Rise: 05:50, Set: 20:18, Transit: 13:05. Moon - Rise: 04:37, Set: 15:55. Civil Dark: 20:54 - 05:13. Nautical Dark: 21:41 - 04:26. Astro Dark: 22:36 - 03:30

Total Clouds (% Sky Obscured)

78
80
63
9
25
26
33
54
46
45
88
98
96
95
92
97
98
90
80
74
86
51
27
6

Low Clouds (% Sky Obscured)

78
55
8
9
25
26
28
12
9
0
60
80
80
67
67
60
66
61
43
36
77
49
27
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
12
40
33
37
64
78
71
83
72
86
89
73
52
43
20
2
0
0

High Clouds (% Sky Obscured)

0
0
0
3
3
4
5
5
44
45
47
43
3
1
3
51
63
7
3
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
99
100
94
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
19
9
6
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)

10
10
7
5
4
4
3
3
3
3
4
4
6
7
7
8
8
7
7
7
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
81
83
85
88
90
87
87
91
94
96
98
94
91
88
85
77
71
66
63
60
59
58
64

Pressure (mb)

1014
1015
1016
1017
1018
1019
1019
1019
1019
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021

Ozone (du)

352
349
347
347
348
347
347
348
346
348
351
350
351
351
352
354
352
352
350
350
348
345
344
343

Thursday 24

Waning Crescent 9%

04:50

17:24

18 Good
19 Good
20 Good
21 Good
22 OK
23 Good
00 Good
01 Good
02 Good
03 OK
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: 05:48, Set: 20:19, Transit: 13:04. Moon - Rise: 04:50, Set: 17:24. Civil Dark: 20:56 - 05:11. Nautical Dark: 21:43 - 04:23. Astro Dark: 22:39 - 03:26

Total Clouds (% Sky Obscured)

0
0
0
0
47
16
0
0
1
23
46
77
83
81
79
82
100
100
100
100
100
95
94
89

Low Clouds (% Sky Obscured)

0
0
0
0
47
16
0
0
0
22
46
77
78
81
79
81
77
68
57
62
37
16
59
67

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
2
2
2
43
45
100
99
82
59
89
76
82
85

High Clouds (% Sky Obscured)

0
0
0
0
2
5
0
0
1
5
7
12
55
49
41
28
97
100
91
90
90
66
62
40

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
1
14
10
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
17
18
20
20
18
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
72
72
80
80
81
88
91
91
94
93
94
94
93
87
82
77
72
70
67
67
69
71
75

Pressure (mb)

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

Ozone (du)

343
343
342
342
341
341
340
337
336
334
333
332
331
332
332
332
333
335
335
337
337
338
338
339

Friday 25

Waning Crescent 3%

05:03

No Set

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
17 Bad

Sun - Rise: 05:46, Set: 20:21, Transit: 13:04. Moon - Rise: 05:03, Set: No Set. Civil Dark: 20:58 - 05:09. Nautical Dark: 21:46 - 04:21. Astro Dark: 22:42 - 03:23

Total Clouds (% Sky Obscured)

98
76
83
91
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

47
7
7
0
0
13
24
59
57
80
91
95
94
83
93
96
96
95
88
96
97
99
90
80

Medium Clouds (% Sky Obscured)

92
76
83
91
99
100
100
100
100
100
100
100
94
79
100
98
97
100
97
92
68
50
96
70

High Clouds (% Sky Obscured)

87
20
15
2
100
84
69
98
100
100
96
100
15
99
39
31
100
100
100
72
47
20
15
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 (%)

5
1
1
1
1
1
5
17
23
25
28
30
37
35
35
27
17
13
12
20
38
39
34
29

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
81
84
88
88
88
88
93
95
95
93
91
90
85
82
81
83
84
84
79
76
79
81
81

Pressure (mb)

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

Ozone (du)

340
340
341
340
339
340
342
344
346
348
350
351
352
353
352
354
355
355
357
356
356
357
359
361

Saturday 26

Waning Crescent 0%

05:17

18:55

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
17 Bad

Sun - Rise: 05:44, Set: 20:23, Transit: 13:04. Moon - Rise: 05:17, Set: 18:55. Civil Dark: 21:00 - 05:07. Nautical Dark: 21:48 - 04:18. Astro Dark: 22:46 - 03:20

Total Clouds (% Sky Obscured)

99
97
94
90
91
91
92
91
92
88
87
88
78
58
65
74
85
80
76
84
92
100
99
97

Low Clouds (% Sky Obscured)

68
65
65
67
64
63
62
66
72
77
76
76
69
55
59
67
64
62
61
49
35
17
15
22

Medium Clouds (% Sky Obscured)

53
43
41
38
42
35
35
34
29
28
33
28
27
18
8
0
7
16
52
60
77
81
59
27

High Clouds (% Sky Obscured)

15
10
10
10
9
0
1
0
0
0
0
1
1
1
1
2
25
20
15
40
70
100
97
94

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 (%)

12
13
10
1
3
2
0
1
1
0
0
0
0
0
0
0
0
4
17
12
12
1
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)

2
2
2
2
2
2
2
2
1
1
2
2
2
2
4
5
7
8
9
9
10
9
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
93
93
93
93
91
91
91
91
91
93
93
91
85
83
76
74
71
72
70
76
69
70

Pressure (mb)

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

Ozone (du)

362
362
363
363
364
364
365
364
362
359
356
354
355
356
358
357
356
357
354
353
354
353
354
352

Sunday 27

New Moon 1%

05:36

20:31

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

Sun - Rise: 05:42, Set: 20:24, Transit: 13:04. Moon - Rise: 05:36, Set: 20:31. Civil Dark: 21:02 - 05:04. Nautical Dark: 21:50 - 04:16. Astro Dark: 22:49 - 03:16

Total Clouds (% Sky Obscured)

96
85
74
55
53
50
45
46
46
46
39
33
24
60
40
30
6
2
4
12
20
29
37
46

Low Clouds (% Sky Obscured)

23
16
18
3
1
0
0
0
0
0
0
0
0
0
0
0
1
2
4
12
20
29
37
46

Medium Clouds (% Sky Obscured)

39
29
30
29
21
10
0
11
21
31
23
15
8
0
0
0
0
0
0
2
3
5
4
3

High Clouds (% Sky Obscured)

91
72
41
18
25
33
36
24
12
2
22
24
24
55
30
20
6
2
4
9
8
9
14
23

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
0
0
0
0
0
0
0
0
0
0
6
8
9
9
10
11
10
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
11
10
9
10
8
8
9
8
8
6
6
7
9
9
11
12
12
13
18
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

76
83
90
93
93
95
95
93
93
94
94
94
94
95
88
84
80
75
72
67
69
68
69
71

Pressure (mb)

1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021

Ozone (du)

352
353
351
349
347
346
344
343
342
340
337
336
333
333
333
333
333
333
332
331
331
330
330
329

Monday 28

Waxing Crescent 5%

06:02

22:08

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

Sun - Rise: 05:40, Set: 20:26, Transit: 13:04. Moon - Rise: 06:02, Set: 22:08. Civil Dark: 21:04 - 05:02. Nautical Dark: 21:52 - 04:13. Astro Dark: 22:52 - 03:13

Total Clouds (% Sky Obscured)

55
36
18
0
0
0
2
5
17
24
35
42
44
58
67
58
38
17
12
30
49
71
55
38

Low Clouds (% Sky Obscured)

55
36
18
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25
49
71
55
38

Medium Clouds (% Sky Obscured)

2
3
4
0
0
0
2
5
5
4
11
18
26
39
54
58
38
17
12
10
8
5
3
2

High Clouds (% Sky Obscured)

19
17
11
0
0
0
0
0
0
0
0
0
10
33
35
34
33
17
12
12
5
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 (%)

8
7
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
15
13
13
12
11
10
7
7
7
6
6
6
8
8
9
9
10
11
16
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

76
79
82
83
85
85
84
84
85
87
88
88
88
88
81
75
70
66
61
57
59
62
63
66

Pressure (mb)

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

Ozone (du)

328
328
328
328
328
328
328
328
328
328
327
327
327
326
327
328
329
329
330
331
330
328
327
328

Tuesday 29

Waxing Crescent 12%

06:40

23:42

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

Sun - Rise: 05:38, Set: 20:28, Transit: 13:04. Moon - Rise: 06:40, Set: 23:42. Civil Dark: 21:06 - 05:00. Nautical Dark: 21:55 - 04:11. Astro Dark: 22:55 - 03:09

Total Clouds (% Sky Obscured)

20
12
6
1
1
2
3
6
8
11
27
43
59
48
37
25
20
14
8

Low Clouds (% Sky Obscured)

20
12
6
0
0
0
0
0
0
0
8
11
11
5
1
0
0
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
13
17
16
11
7
3
2
0

High Clouds (% Sky Obscured)

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

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
None

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
14
13
11
11
10
10
9
9
9
9
9
9
11
14
16
17
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
73
71
71
71
72
74
76
81
85
91
90
90
90
84
80
74
71
66

Pressure (mb)

1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1017
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

328
329
329
330
331
332
334
336
336
336
335
335
336
336
336
336
336
337
338

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

Generated: 23/04/25 18:04:32. Forecast: 23/04/25 to 29/04/25. Timezone: UTC+1.00