Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 6

Waning Gibbous 77%

01:31

08:26

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

Sun - Rise: 06:35, Set: 19:55, Transit: 13:16. Moon - Rise: 01:31, Set: 08:26. Civil Dark: 20:28 - 06:01. Nautical Dark: 21:09 - 05:20. Astro Dark: 21:54 - 04:35

Total Clouds (% Sky Obscured)

20
28
18
11
1
0
12
17
35
19
0
0
0
0
0
0
0
0
0
14
100
56
72
100

Low Clouds (% Sky Obscured)

13
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
5

Medium Clouds (% Sky Obscured)

19
17
2
0
0
0
7
11
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3

High Clouds (% Sky Obscured)

20
28
18
11
1
0
4
4
4
7
0
0
0
0
0
0
0
0
0
14
100
56
72
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
0
0
0
0
0
0
0
0
0
0
1
2
7
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
71
68
67
69
71
72
73
77
81
85
90
91
90
87
87
87
87
88
85
88
85
87
85

Pressure (mb)

1025
1025
1025
1025
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1020
1019
1019
1019
1019

Ozone (du)

360
361
362
362
364
365
363
360
359
356
353
350
350
348
348
348
349
348
345
342
339
339
339
342

Tuesday 7

Waning Gibbous 69%

02:30

No Set

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

Sun - Rise: 06:33, Set: 19:56, Transit: 13:16. Moon - Rise: 02:30, Set: No Set. Civil Dark: 20:30 - 05:59. Nautical Dark: 21:11 - 05:17. Astro Dark: 21:56 - 04:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
84
74
40
66
54
35
33
5
50
85
68
56
74
88
86
73
55
80

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
52
57
56
60
61
65
62
55
40

Medium Clouds (% Sky Obscured)

46
57
45
3
12
20
22
53
29
25
54
5
4
0
0
12
18
21
27
26
23
26
5
1

High Clouds (% Sky Obscured)

100
100
100
100
100
100
73
11
7
50
30
35
33
4
50
52
18
7
18
43
33
37
11
77

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
66
88
100
100

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
15
15
17
17
17
18
17
15
13
11
7
5
3
2
2
2
2
2
1
1
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
80
80
75
74
75
75
75
78
79
82
80
84
90
91
95
93
95
95
95
95
93
93
90

Pressure (mb)

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

Ozone (du)

343
344
344
343
341
342
341
340
339
338
338
338
338
340
339
338
337
336
336
337
338
338
338
340

Wednesday 8

Waning Gibbous 59%

03:17

09:13

09 Bad
10 Good
11 Good
12 OK
13 OK
14 OK
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
06 OK
07 Bad
08 Bad

Sun - Rise: 06:31, Set: 19:58, Transit: 13:15. Moon - Rise: 03:17, Set: 09:13. Civil Dark: 20:32 - 05:57. Nautical Dark: 21:13 - 05:15. Astro Dark: 21:58 - 04:29

Total Clouds (% Sky Obscured)

60
3
4
16
26
39
47
49
69
49
10
47
28
65
73
100
100
99
98
89
66
27
50
72

Low Clouds (% Sky Obscured)

0
0
0
13
26
39
47
44
48
42
0
1
13
26
40
46
54
51
45
32
1
1
17
34

Medium Clouds (% Sky Obscured)

5
1
3
2
1
1
15
13
21
8
0
1
0
1
1
2
2
1
61
42
17
2
0
1

High Clouds (% Sky Obscured)

45
3
2
4
5
4
3
2
11
5
8
47
14
48
72
100
99
98
97
89
48
27
39
65

ISS Passover

Visibility (miles)

9
9
9
7
7
7
7
7
3
3
5
8
8
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

98
7
0
0
0
0
0
0
0
0
0
0
0
2
2
5
94
94
94
94
94
94
94
94

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
0
2
30
48
48
44
31
24
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.5
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
16
18
19
20
20
20
20
19
18
17
14
13
12
12
11
11
11
11
10
10
9
9
10

Feels Like (°C)

15
18
21
21
21
21
21
21
20
18
19
16
14
14
13
12
10
10
9
9
9
8
8
9

Dew Point (°C)

10
12
14
14
15
16
16
17
17
16
16
14
12
11
11
10
9
9
9
9
8
8
8
9

Relative Humidity (%)

84
79
74
71
71
75
77
79
85
89
93
95
95
93
92
91
90
90
91
91
91
93
93
90

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1023
1024
1023
1023
1023
1022
1022
1022
1022
1022

Ozone (du)

341
342
344
346
346
347
348
348
348
348
348
350
353
357
356
353
349
349
350
349
349
347
349
351

Thursday 9

Waning Gibbous 49%

03:53

10:12

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:29, Set: 19:59, Transit: 13:15. Moon - Rise: 03:53, Set: 10:12. Civil Dark: 20:33 - 05:54. Nautical Dark: 21:15 - 05:13. Astro Dark: 22:01 - 04:27

Total Clouds (% Sky Obscured)

94
85
79
73
84
92
100
83
70
54
66
73
80
83
90
97
92
85
83
89
94
100
100
100

Low Clouds (% Sky Obscured)

50
41
38
35
38
42
41
33
19
7
15
24
31
32
35
34
28
20
14
11
9
7
5
3

Medium Clouds (% Sky Obscured)

2
22
34
3
5
29
39
32
2
2
5
7
9
16
21
27
29
29
42
39
42
55
55
50

High Clouds (% Sky Obscured)

83
68
54
43
62
81
100
77
53
30
28
35
42
53
68
82
66
52
36
38
40
42
43
49

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 (%)

94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94

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
1
1
1
4
3
0
0
0
0
0
0
0
0
0
0
0
0
1
22
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)

9
13
14
15
14
14
16
16
14
12
11
9
6
4
3
3
3
2
2
2
1
1
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
77
67
67
68
70
74
76
81
85
91
91
91
93
91
91
93
93
94
94
94
96
94

Pressure (mb)

1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1023
1023

Ozone (du)

350
350
351
349
348
348
346
346
342
342
343
343
342
342
341
341
340
340
338
337
336
336
337
337

Friday 10

Third Quarter 39%

04:19

11:21

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:26, Set: 20:01, Transit: 13:15. Moon - Rise: 04:19, Set: 11:21. Civil Dark: 20:35 - 05:52. Nautical Dark: 21:17 - 05:10. Astro Dark: 22:03 - 04:24

Total Clouds (% Sky Obscured)

100
100
99
100
91
91
95
95
95
95
95
100
100
100
100
100
100
99
97
93
87
85
87
90

Low Clouds (% Sky Obscured)

3
18
35
53
58
62
71
57
42
28
19
10
0
1
2
3
6
8
10
12
14
15
32
46

Medium Clouds (% Sky Obscured)

55
55
55
60
60
60
65
65
55
50
55
65
65
60
57
90
78
67
56
53
49
47
58
68

High Clouds (% Sky Obscured)

54
66
73
98
62
62
60
75
80
85
85
90
91
96
100
100
99
96
92
79
65
52
62
51

ISS Passover

Visibility (miles)

9
7
7
7
7
7
7
7
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94

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 (%)

32
21
10
1
1
1
1
5
4
0
2
3
0
1
1
1
8
10
9
10
6
2
10
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)

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

Chance of Frost

Temperature (°C)

9
11
12
13
14
14
14
14
13
12
11
9
9
9
9
9
9
9
9
9
9
9
9
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
87
83
80
78
75
75
76
79
84
90
96
96
95
95
95
91
91
90
88
90
90
91
91

Pressure (mb)

1023
1023
1022
1021
1020
1020
1019
1018
1018
1017
1017
1016
1016
1016
1015
1014
1013
1012
1012
1011
1010
1010
1009
1009

Ozone (du)

335
335
336
337
338
339
340
342
345
347
351
352
354
357
359
359
357
356
355
355
354
353
352
352

Saturday 11

Waning Crescent 38%

04:39

12:36

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 OK
06 OK
07 OK
08 Bad

Sun - Rise: 06:24, Set: 20:03, Transit: 13:14. Moon - Rise: 04:39, Set: 12:36. Civil Dark: 20:37 - 05:50. Nautical Dark: 21:19 - 05:08. Astro Dark: 22:05 - 04:21

Total Clouds (% Sky Obscured)

95
93
90
85
89
96
100
98
94
89
76
63
49
58
66
80
85
84
73
53
27
10
28
51

Low Clouds (% Sky Obscured)

62
67
73
82
78
78
75
67
58
45
33
24
10
23
40
56
51
46
42
30
20
5
28
51

Medium Clouds (% Sky Obscured)

72
66
71
82
84
85
84
73
60
49
57
63
49
58
55
50
45
40
40
50
27
10
28
51

High Clouds (% Sky Obscured)

33
22
20
18
45
72
100
73
43
14
18
35
43
33
24
15
15
15
15
20
15
10
10
10

ISS Passover

Visibility (miles)

9
9
8
8
7
5
3
1
4
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94

Precipitation Type

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

Precipitation Probability (%)

0
7
13
16
34
43
46
38
31
24
35
38
30
23
18
3
6
7
1
4
4
2
10
10

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
87
84
82
78
80
83
86
86
86
86
87
88
90
90
91
91
93
93
94
91
91
89
87

Pressure (mb)

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

Ozone (du)

352
351
351
351
351
354
356
358
360
362
364
365
365
366
367
369
371
366
362
357
358
359
360
362

Sunday 12

Waning Crescent 30%

04:56

13:53

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
06 Bad

Sun - Rise: 06:22, Set: 20:04, Transit: 13:14. Moon - Rise: 04:56, Set: 13:53. Civil Dark: 20:39 - 05:48. Nautical Dark: 21:21 - 05:05. Astro Dark: 22:08 - 04:18

Total Clouds (% Sky Obscured)

73
64
55
45
53
60
67
54
44
28
29
30
30
32
44
54
67
83
93
94
94
96

Low Clouds (% Sky Obscured)

73
64
55
45
53
60
67
54
44
28
29
30
30
32
33
27
31
39
47
48
49
50

Medium Clouds (% Sky Obscured)

73
64
55
45
53
60
67
54
44
28
29
30
30
32
40
40
58
70
86
89
90
90

High Clouds (% Sky Obscured)

5
5
5
0
4
4
4
9
19
28
29
30
30
32
44
40
30
30
25
28
21
14

ISS Passover

Visibility (miles)

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

Fog (%)

94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94
94

Precipitation Type

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

Precipitation Probability (%)

6
15
15
7
26
24
19
35
39
27
49
47
30
48
54
55
55
59
63
57
51
44

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
16
16
17
17
17
16
15
14
14
13
11
10
9
7
5
5
5
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
81
77
75
71
72
73
74
76
74
75
77
78
78
82
88
93
93
93
93
94
93

Pressure (mb)

1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

364
365
366
368
369
369
369
370
370
370
370
371
372
373
374
375
377
377
377
378
376
375

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 06/04/26 09:34:49. Forecast: 06/04/26 to 12/04/26. Timezone: UTC+1.00