Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

Waxing Crescent 35%

09:29

02:20

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: 06:13, Set: 20:25, Transit: 13:20. Moon - Rise: 09:29, Set: 02:20. Civil Dark: 21:01 - 05:37. Nautical Dark: 21:45 - 04:53. Astro Dark: 22:35 - 04:02

Total Clouds (% Sky Obscured)

53
52
46
68
76
74
83
90
58
61
84
76
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
19
29
7
5
14
22
27
34
39
47
46
41
46
46
31
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

53
52
46
30
38
45
43
53
27
25
79
73
67
76
96
81
95
100
93
100
100
100
94
62

High Clouds (% Sky Obscured)

53
52
17
68
76
67
74
60
8
13
71
65
100
100
100
100
100
91
100
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
0
0
0
0
0
2
14
15
7
3
3
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)

24
24
25
28
28
28
27
27
27
27
27
27
28
29
29
29
28
28
27
26
26
25
24
23

Chance of Frost

Temperature (°C)

11
10
10
11
10
10
10
10
10
10
10
10
10
11
11
11
12
12
12
12
12
12
11
12

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
7
6
6
6
7
7
7
7
7
7
7
7
7
8
8
8
8
7
7

Relative Humidity (%)

76
77
77
80
80
81
80
77
78
81
82
81
81
80
77
76
73
75
77
73
77
77
76
75

Pressure (mb)

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

Ozone (du)

380
379
378
377
376
374
375
375
374
375
378
378
377
378
380
382
383
382
383
384
383
382
381
381

Wednesday 22

Waxing Crescent 46%

10:50

03:05

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

Sun - Rise: 06:11, Set: 20:27, Transit: 13:20. Moon - Rise: 10:50, Set: 03:05. Civil Dark: 21:02 - 05:35. Nautical Dark: 21:47 - 04:50. Astro Dark: 22:38 - 03:59

Total Clouds (% Sky Obscured)

100
100
100
100
100
87
73
56
39
24
52
53
67
26
30
68
45
12
64
75
71
83
53
65

Low 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

Medium Clouds (% Sky Obscured)

56
46
42
58
77
58
46
38
27
16
23
15
34
2
2
26
1
5
35
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
83
73
56
39
24
52
50
45
26
24
28
31
12
53
68
34
38
24
27

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)

23
22
22
22
22
22
23
23
22
22
22
22
23
24
25
27
28
28
28
28
27
27
26
25

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
72
71
72
75
80
83
84
85
87
85
85
84
79
76
72
69
67
66
67
68
70
71
72

Pressure (mb)

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

Ozone (du)

382
380
378
376
373
372
369
367
367
367
368
367
368
369
369
369
369
369
370
370
371
371
369
367

Thursday 23

Waxing Crescent 43%

12:15

03:36

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

Sun - Rise: 06:09, Set: 20:29, Transit: 13:19. Moon - Rise: 12:15, Set: 03:36. Civil Dark: 21:04 - 05:33. Nautical Dark: 21:49 - 04:48. Astro Dark: 22:40 - 03:56

Total Clouds (% Sky Obscured)

12
53
15
3
10
10
27
90
96
97
96
98
69
18
19
47
90
74
36
24
51
67
69
81

Low Clouds (% Sky Obscured)

4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
33
49
35

Medium Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
1
60
55
50
16
0
0
0
0
24
4
4
4
5
5
31

High Clouds (% Sky Obscured)

9
21
13
3
10
10
27
63
51
66
74
88
64
18
19
47
90
74
29
24
51
67
48
68

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
1
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)

24
24
24
24
24
23
23
22
22
22
21
21
22
22
23
23
23
23
22
22
21
20
19
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
69
66
64
65
71
76
77
78
77
78
80
81
79
77
71
68
65
64
63
61
63
65
66

Pressure (mb)

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

Ozone (du)

365
363
362
363
362
362
360
358
357
355
355
355
355
354
353
353
352
352
351
351
350
349
348
347

Friday 24

First Quarter 58%

13:37

03:58

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 OK
19 OK

Sun - Rise: 06:07, Set: 20:30, Transit: 13:19. Moon - Rise: 13:37, Set: 03:58. Civil Dark: 21:06 - 05:31. Nautical Dark: 21:51 - 04:46. Astro Dark: 22:43 - 03:53

Total Clouds (% Sky Obscured)

93
91
100
100
100
100
100
100
100
100
100
100
100
100
96
92
90
89
78
63
75
62
37
41

Low Clouds (% Sky Obscured)

21
7
5
2
0
3
6
8
9
9
10
6
3
0
0
0
0
0
0
0
3
5
8
18

Medium Clouds (% Sky Obscured)

55
76
100
99
100
100
100
100
100
100
100
100
100
100
93
88
90
89
76
51
73
58
36
40

High Clouds (% Sky Obscured)

89
86
100
100
100
100
100
100
100
100
100
82
70
55
0
0
0
0
0
0
0
0
0
22

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
4
7
9
24
32
36
33
25
12
10
7
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)

16
15
14
14
14
13
11
9
6
7
8
8
9
11
12
11
11
11
9
8
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
72
76
75
73
70
67
70
71
73
76
78
80
80
73
69
66
65
64
64
65
68
70
74

Pressure (mb)

1021
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022

Ozone (du)

346
346
346
347
348
350
356
360
363
365
368
375
383
388
388
383
382
382
381
380
382
383
384
384

Saturday 25

Waxing Gibbous 69%

14:55

04:15

20 OK
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: 06:05, Set: 20:32, Transit: 13:19. Moon - Rise: 14:55, Set: 04:15. Civil Dark: 21:08 - 05:29. Nautical Dark: 21:53 - 04:43. Astro Dark: 22:46 - 03:50

Total Clouds (% Sky Obscured)

46
59
70
77
72
77
91
82
68
70
77
82
89
94
95
95
96
94
91
88
88
85
82
86

Low Clouds (% Sky Obscured)

29
40
27
13
0
0
0
0
8
17
27
69
73
76
68
54
50
49
52
60
65
62
62
57

Medium Clouds (% Sky Obscured)

40
42
44
37
33
32
31
30
25
24
19
6
12
19
16
10
5
8
11
16
14
8
2
2

High Clouds (% Sky Obscured)

46
59
70
77
72
77
83
71
64
61
64
41
40
43
39
30
43
63
73
85
76
66
55
67

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
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)

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

Chance of Frost

Temperature (°C)

12
12
11
11
11
11
11
11
11
11
11
11
10
11
12
12
12
12
12
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
68
64
64
67
73
74
74
74
73
76
78
77
77
76
76
73
72
73
75
75
77
79
81

Pressure (mb)

1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

383
382
382
381
379
379
377
375
374
374
373
373
372
372
371
370
369
368
367
365
363
362
361
359

Sunday 26

Waxing Gibbous 78%

16:10

04:28

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: 06:03, Set: 20:33, Transit: 13:19. Moon - Rise: 16:10, Set: 04:28. Civil Dark: 21:09 - 05:27. Nautical Dark: 21:55 - 04:41. Astro Dark: 22:48 - 03:47

Total Clouds (% Sky Obscured)

90
95
93
89
86
86
86
86
90
95
100
100
100
100
95
89
84
84
80
78
77
84
90
83

Low Clouds (% Sky Obscured)

48
36
33
32
29
33
33
34
46
56
66
61
53
45
36
26
14
15
14
15
20
24
30
22

Medium Clouds (% Sky Obscured)

1
0
5
9
14
12
11
12
23
45
70
75
80
80
81
81
73
72
61
50
51
58
64
52

High Clouds (% Sky Obscured)

79
92
61
31
0
0
0
0
33
67
100
100
100
100
87
74
57
39
28
16
17
23
34
32

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
2
2
1
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
87
87
87
87
88
88
88
87
88
88
80
73
67
65
64
60
63
64
64
67
71
76

Pressure (mb)

1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1026
1026

Ozone (du)

359
358
358
357
356
355
354
354
354
355
355
356
356
356
356
357
357
357
357
357
357
358
358
359

Monday 27

Waxing Gibbous 86%

17:23

04:41

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

Sun - Rise: 06:01, Set: 20:35, Transit: 13:19. Moon - Rise: 17:23, Set: 04:41. Civil Dark: 21:11 - 05:25. Nautical Dark: 21:57 - 04:39. Astro Dark: 22:51 - 03:44

Total Clouds (% Sky Obscured)

81
90
90
94
94
93
93
88
83
85
84
84
83
82
81
80
78

Low Clouds (% Sky Obscured)

15
0
0
0
0
3
6
8
14
21
26
32
38
44
47
46
42

Medium Clouds (% Sky Obscured)

37
25
17
11
1
1
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

41
45
45
45
39
24
19
14
13
26
37
60
58
56
57
57
61

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)

11
10
10
10
10
10
11
12
14
14
14
14
15
16
17
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
81
84
84
85
84
85
87
88
87
85
82
80
77
74
73
71

Pressure (mb)

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

Ozone (du)

359
359
359
359
359
359
360
360
361
361
361
361
361
361
361
361
360

Forecast for St Ives, Cornwall, United Kingdom (50.22,-5.48)

Generated: 21/04/26 19:58:44. Forecast: 21/04/26 to 27/04/26. Timezone: UTC+1.00