Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 18

Waxing Crescent 2%

06:17

22:22

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

Sun - Rise: 06:17, Set: 20:18, Transit: 13:18. Moon - Rise: 06:17, Set: 22:22. Civil Dark: 20:53 - 05:42. Nautical Dark: 21:36 - 04:59. Astro Dark: 22:25 - 04:10

Total Clouds (% Sky Obscured)

45
51
48
56
39
30
44
41
56
35
44
13
4
4
45
42
43
41
34
0
24
28
24
23

Low Clouds (% Sky Obscured)

45
50
48
56
39
30
44
41
56
35
44
13
4
4
45
42
43
41
34
0
0
7
23
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
0
0
0
0
0
0
9
6
4
3

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
3
3
0
0
0
0
0
0
0
28
12
5

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
1
1
2
1
1
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
95
95
95
95
88
82
77
73
72
71
70
68
70
72
74
81
91
93
93
93
93

Pressure (mb)

1022
1022
1022
1022
1023
1023
1023
1024
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1028
1028
1028

Ozone (du)

400
398
398
397
397
396
395
397
396
393
393
395
395
399
403
403
403
402
401
396
394
391
391
390

Sunday 19

Waxing Crescent 7%

06:43

23:53

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

Sun - Rise: 06:15, Set: 20:20, Transit: 13:17. Moon - Rise: 06:43, Set: 23:53. Civil Dark: 20:55 - 05:40. Nautical Dark: 21:38 - 04:57. Astro Dark: 22:28 - 04:07

Total Clouds (% Sky Obscured)

10
14
10
15
11
7
78
100
38
55
90
8
19
9
0
35
43
63
58
57
48
11
9
53

Low Clouds (% Sky Obscured)

0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
35
43
62
57
57
46
7
0
0

Medium Clouds (% Sky Obscured)

10
14
10
8
6
2
1
1
2
20
2
2
2
2
0
0
0
0
0
0
0
0
0
30

High Clouds (% Sky Obscured)

10
14
10
15
11
7
77
100
38
37
53
8
19
9
0
8
4
4
5
31
48
11
7
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
38
64
64
64
61
41
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
2
1
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)

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

Chance of Frost

Temperature (°C)

7
7
6
5
5
4
4
5
9
11
12
13
13
14
14
13
12
12
11
10
9
8
7
6

Feels Like (°C)

6
4
3
3
2
2
3
4
7
8
10
12
12
13
13
12
11
10
9
9
8
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

93
91
90
90
88
88
86
82
73
66
61
59
59
58
60
68
71
73
76
78
84
85
88
88

Pressure (mb)

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

Ozone (du)

389
389
388
387
388
388
386
384
384
385
385
385
385
383
381
382
381
380
380
379
380
381
382
383

Monday 20

Waxing Crescent 14%

07:21

No Set

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

Sun - Rise: 06:13, Set: 20:21, Transit: 13:17. Moon - Rise: 07:21, Set: No Set. Civil Dark: 20:56 - 05:38. Nautical Dark: 21:40 - 04:54. Astro Dark: 22:30 - 04:04

Total Clouds (% Sky Obscured)

30
43
10
29
19
15
26
93
39
86
100
100
95
99
100
100
94
38
50
61
72
64
57
40

Low Clouds (% Sky Obscured)

0
0
0
0
6
0
0
0
4
10
35
43
37
27
25
7
6
0
0
0
0
2
4
5

Medium Clouds (% Sky Obscured)

18
24
5
29
19
15
26
77
27
84
92
96
85
86
100
100
94
38
50
61
72
64
57
28

High Clouds (% Sky Obscured)

10
4
7
7
19
3
2
29
6
15
43
36
44
91
100
48
55
38
50
40
23
21
40
6

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
12
4
11
1
2
2
1
1
1
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)

4
5
5
5
6
6
6
6
9
12
13
14
14
15
15
14
13
11
10
8
7
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
86
85
83
83
82
81
78
75
71
69
69
64
62
63
66
72
76
81
87
88
88
90

Pressure (mb)

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

Ozone (du)

384
386
388
387
387
388
389
390
391
392
391
391
390
388
387
386
385
385
385
386
387
388
387
386

Tuesday 21

Waxing Crescent 24%

08:14

01:14

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
20 OK
21 OK
22 OK
23 OK
00 Bad

Sun - Rise: 06:11, Set: 20:23, Transit: 13:17. Moon - Rise: 08:14, Set: 01:14. Civil Dark: 20:58 - 05:36. Nautical Dark: 21:42 - 04:52. Astro Dark: 22:33 - 04:01

Total Clouds (% Sky Obscured)

62
83
69
67
65
67
62
70
66
64
96
83
88
68
56
45
42
41
34
26
17
26
41
53

Low Clouds (% Sky Obscured)

17
28
38
36
35
31
39
45
45
38
32
24
16
8
1
1
1
0
1
0
0
0
0
0

Medium Clouds (% Sky Obscured)

57
80
57
57
49
45
37
31
28
24
21
21
24
21
22
12
13
7
6
8
8
15
21
28

High Clouds (% Sky Obscured)

13
4
2
4
10
18
13
13
8
6
66
48
64
34
25
24
21
18
14
10
2
15
30
47

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
1
0
4
6
3
4
3
2
5
6
5
13
4
2
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
8
9
10
11
12
12
14
15
17
18
19
20
21
21
21
20
19
18
17
16
16
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
90
88
83
83
82
79
75
70
65
61
61
63
65
69
73
77
81
80
74
77
69
64

Pressure (mb)

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

Ozone (du)

385
384
384
383
383
383
384
384
385
385
386
386
386
386
384
383
381
382
380
379
380
381
384
385

Wednesday 22

Waxing Crescent 35%

09:25

02:18

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:09, Set: 20:24, Transit: 13:17. Moon - Rise: 09:25, Set: 02:18. Civil Dark: 21:00 - 05:34. Nautical Dark: 21:44 - 04:49. Astro Dark: 22:36 - 03:58

Total Clouds (% Sky Obscured)

54
61
63
70
73
77
77
77
77
78
79
80
83
85
88
88
88
89
92
96
100
99
98
95

Low Clouds (% Sky Obscured)

0
0
0
4
9
13
16
20
23
26
30
34
56
78
88
88
87
76
77
83
83
68
58
45

Medium Clouds (% Sky Obscured)

40
45
40
36
32
29
28
33
37
37
33
30
25
24
19
9
8
8
38
60
74
70
66
59

High Clouds (% Sky Obscured)

40
31
22
39
59
77
77
77
77
78
79
78
73
73
69
62
53
39
36
29
20
5
4
7

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

Precipitation Probability (%)

1
1
0
3
4
2
11
13
11
43
54
54
80
75
77
63
47
20
17
12
0
1
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.4
0.5
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
19
19
19
19
20
20
21
23
24
25
25
24
24
23
21
20
18
17
15
14
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
0
1
3
3
3
3
4
5
5
5
4
4
5
5
5
5
6
6
5
5
4
4
3

Relative Humidity (%)

62
62
67
73
74
75
75
74
73
68
64
61
60
61
62
64
66
70
73
69
68
65
66
67

Pressure (mb)

1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

386
386
387
387
385
381
380
379
379
380
379
379
377
376
376
375
375
374
374
376
377
378
376
375

Thursday 23

Waxing Crescent 46%

10:46

03:03

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 OK
15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good

Sun - Rise: 06:07, Set: 20:26, Transit: 13:17. Moon - Rise: 10:46, Set: 03:03. Civil Dark: 21:02 - 05:32. Nautical Dark: 21:47 - 04:47. Astro Dark: 22:38 - 03:55

Total Clouds (% Sky Obscured)

92
89
89
85
81
75
76
76
80
77
80
83
54
30
2
2
0
0
0
0
0
1
3
4

Low Clouds (% Sky Obscured)

46
50
54
50
49
47
39
35
27
19
9
0
0
0
0
0
0
0
0
0
0
1
3
4

Medium Clouds (% Sky Obscured)

60
60
62
53
39
22
18
14
11
13
16
17
11
5
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

9
8
8
20
32
43
52
76
80
68
54
52
36
19
2
2
0
0
0
0
0
1
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
3
3
3
2
2
2
3
3
4
5
6
7
12
11
11
11
12
12
10
9
9
9
7

Dew Point (°C)

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

Relative Humidity (%)

68
70
71
74
75
77
79
75
73
71
68
64
63
63
63
64
67
70
75
77
81
82
87
88

Pressure (mb)

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

Ozone (du)

374
372
370
368
369
369
369
369
368
368
367
366
366
366
366
366
365
364
364
363
363
363
363
363

Friday 24

First Quarter 58%

12:11

03:34

Sun - Rise: 06:05, Set: 20:28, Transit: 13:17. Moon - Rise: 12:11, Set: 03:34. Civil Dark: 21:03 - 05:30. Nautical Dark: 21:49 - 04:44. Astro Dark: 22:41 - 03:52

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Saint Blazey, Cornwall, United Kingdom (50.36,-4.74)

Generated: 18/04/26 01:01:05. Forecast: 18/04/26 to 24/04/26. Timezone: UTC+1.00