Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waxing Crescent 31%

11:18

01:59

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 Bad
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

Sun - Rise: 05:19, Set: 21:07, Transit: 13:14. Moon - Rise: 11:18, Set: 01:59. Civil Dark: 21:49 - 04:38. Nautical Dark: 22:46 - 03:40. Astro Dark: 00:17 - 02:06

Total Clouds (% Sky Obscured)

100
99
93
81
100
100
20
47
43
51
49
35
100
86
77
98
74
97
100
98
100
100
98
100

Low Clouds (% Sky Obscured)

57
62
43
30
0
0
0
0
0
22
28
35
0
0
0
19
74
76
79
79
63
51
60
54

Medium Clouds (% Sky Obscured)

58
43
45
51
45
37
20
47
42
24
22
0
0
0
0
0
0
0
1
0
0
0
0
0

High Clouds (% Sky Obscured)

100
68
78
24
22
32
20
47
43
0
3
4
30
86
77
82
35
95
100
95
100
100
94
100

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1
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
12
13
13
13
13
13
12
11
10
10
11
11
9
8
7
7
7
6
6
7
8
8
9

Chance of Frost

Temperature (°C)

15
16
16
16
16
16
15
15
14
13
13
13
13
12
12
12
11
11
11
13
14
15
16
17

Feels Like (°C)

13
13
14
14
14
14
13
12
11
11
12
12
12
12
11
10
10
10
10
11
13
14
15
16

Dew Point (°C)

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

Relative Humidity (%)

75
75
74
74
73
72
74
76
78
82
86
89
92
98
96
98
96
96
96
96
95
90
83
81

Pressure (mb)

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

Ozone (du)

335
334
335
335
332
334
336
340
343
350
351
349
351
349
349
351
351
351
352
350
350
349
348
347

Friday 22

Waxing Crescent 42%

No Rise

02:17

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
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:18, Set: 21:09, Transit: 13:14. Moon - Rise: No Rise, Set: 02:17. Civil Dark: 21:50 - 04:36. Nautical Dark: 22:48 - 03:38. Astro Dark: 00:22 - 02:01

Total Clouds (% Sky Obscured)

100
100
100
96
100
97
89
75
79
82
99
89
81
67
80
90
75
90
85
82
78
75
65
69

Low Clouds (% Sky Obscured)

40
10
0
0
0
0
0
0
0
0
0
0
10
28
33
46
58
90
85
82
78
75
65
69

Medium Clouds (% Sky Obscured)

0
0
14
57
52
78
77
69
79
77
99
86
77
57
43
55
24
1
1
0
0
1
1
2

High Clouds (% Sky Obscured)

100
100
98
91
98
52
34
37
33
69
47
20
6
45
2
3
4
0
0
0
0
1
3
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
1
2
9
10
23
100
64
83
95
96
96
95
79
93
76
9
2
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
6
0
1
5
9
10
16
27
4
1
1
2
1
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)

10
10
10
10
9
8
7
5
4
4
3
3
3
4
2
3
4
5
5
5
6
6
6
6

Chance of Frost

Temperature (°C)

17
18
18
19
18
18
18
17
16
14
13
13
13
13
12
13
12
11
11
13
14
15
17
18

Feels Like (°C)

16
17
17
18
17
17
17
17
15
13
13
13
12
12
12
13
13
12
12
14
15
17
19
20

Dew Point (°C)

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

Relative Humidity (%)

78
77
75
75
76
77
78
82
90
92
92
89
90
93
93
90
90
92
93
92
87
82
76
72

Pressure (mb)

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

Ozone (du)

347
347
346
344
343
343
344
344
343
344
345
349
354
361
369
363
354
350
349
347
345
343
342
339

Saturday 23

First Quarter 54%

12:39

02:32

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

Sun - Rise: 05:17, Set: 21:10, Transit: 13:14. Moon - Rise: 12:39, Set: 02:32. Civil Dark: 21:52 - 04:35. Nautical Dark: 22:50 - 03:36. Astro Dark: 00:28 - 01:54

Total Clouds (% Sky Obscured)

58
40
42
28
2
3
2
2
3
21
31
30
37
46
44
39
45
47
38
26
14
1
1
1

Low Clouds (% Sky Obscured)

58
40
42
28
0
0
0
1
0
21
31
30
37
46
44
39
45
47
38
26
14
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

2
0
1
2
2
2
2
2
3
3
3
4
3
3
3
2
2
3
2
2
2
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
1
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)

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

Chance of Frost

Temperature (°C)

19
20
20
20
19
19
17
16
15
13
12
11
11
11
11
11
11
11
10
12
14
17
18
20

Feels Like (°C)

21
23
24
23
23
21
19
16
15
13
12
11
11
11
12
12
11
12
12
14
17
19
21
22

Dew Point (°C)

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

Relative Humidity (%)

68
65
63
65
68
71
77
82
86
90
86
83
80
80
81
84
85
87
85
84
79
75
72
71

Pressure (mb)

1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1030
1030
1030
1030
1030
1029
1029
1029
1029
1030
1030
1030
1030
1030

Ozone (du)

337
334
332
331
329
328
328
328
328
327
327
327
327
326
325
325
324
323
323
325
325
326
325
325

Sunday 24

Waxing Gibbous 64%

13:56

02:44

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

Sun - Rise: 05:16, Set: 21:11, Transit: 13:14. Moon - Rise: 13:56, Set: 02:44. Civil Dark: 21:53 - 04:34. Nautical Dark: 22:52 - 03:34. Astro Dark: 00:34 - 01:47

Total Clouds (% Sky Obscured)

1
3
5
6
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
2
4
6
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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)

1
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
7
7
7
7
7
7
7
7
7
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
1
2
1
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)

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

Chance of Frost

Temperature (°C)

21
22
22
23
23
22
22
21
19
17
16
16
15
15
15
16
16
16
16
18
20
21
23
23

Feels Like (°C)

23
25
25
25
25
26
25
24
22
20
19
19
18
18
18
19
18
18
19
21
23
24
26
26

Dew Point (°C)

16
17
17
17
18
18
17
17
17
15
14
14
13
13
13
13
13
13
14
15
16
16
17
17

Relative Humidity (%)

70
72
72
72
73
74
76
80
86
86
87
87
86
87
86
86
85
85
85
83
77
73
68
65

Pressure (mb)

1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

325
326
327
327
326
324
324
324
324
324
324
325
324
322
320
320
320
319
318
317
318
320
321
320

Monday 25

Waxing Gibbous 74%

15:10

02:56

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

Sun - Rise: 05:15, Set: 21:12, Transit: 13:14. Moon - Rise: 15:10, Set: 02:56. Civil Dark: 21:55 - 04:32. Nautical Dark: 22:54 - 03:33. Astro Dark: 00:41 - 01:39

Total Clouds (% Sky Obscured)

0
0
0
0
0
1
2
1
1
0
0
0
0
0
0
0
4
4
5
6
8
9
5
5

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
4
8
9
5
5

High 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

ISS Passover

Visibility (miles)

7
7
7
7
7
7
7
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
2
4
0
0
0
0
0
0
0
0
3
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)

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

Chance of Frost

Temperature (°C)

24
25
25
25
26
25
25
24
22
19
18
17
16
16
16
16
16
17
17
18
19
21
23
23

Feels Like (°C)

27
28
29
29
29
29
29
28
26
22
20
19
18
19
18
18
18
18
19
19
21
21
22
22

Dew Point (°C)

17
18
18
18
19
19
18
20
20
18
16
15
14
14
14
14
14
15
15
16
16
17
18
18

Relative Humidity (%)

64
64
63
64
65
67
68
79
88
93
89
86
87
87
87
87
89
89
89
88
84
77
73
71

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

320
319
320
322
323
322
321
321
321
320
322
324
324
326
326
325
325
326
327
328
328
327
327
327

Tuesday 26

Waxing Gibbous 82%

16:23

03:09

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

Sun - Rise: 05:14, Set: 21:14, Transit: 13:14. Moon - Rise: 16:23, Set: 03:09. Civil Dark: 21:56 - 04:31. Nautical Dark: 22:56 - 03:31. Astro Dark: 00:50 - 01:25

Total Clouds (% Sky Obscured)

7
12
15
18
17
16
16
12
8
3
17
30
43
35
27
20
13
7
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

4
3
3
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
12
13
11
8
4
3
2
2
1
6
11
18
18
14
11
7
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
2
2
4
7
10
7
4
2
6
7
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
7
8
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
1
3
5
13
13
8
12
10
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)

6
7
8
8
9
9
8
8
7
6
5
5
6
7
7
7
7
7
7
7
9
12
14
14

Chance of Frost

Temperature (°C)

24
25
25
25
25
24
24
23
21
19
18
17
16
16
15
15
14
14
14
14
15
16
17
18

Feels Like (°C)

23
24
28
28
27
28
27
27
24
24
23
22
22
21
16
15
15
15
14
14
12
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

69
67
68
68
67
71
74
79
84
88
95
92
90
90
85
79
74
71
69
67
64
62
60
56

Pressure (mb)

1029
1029
1029
1029
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

328
328
328
329
329
328
326
325
325
325
325
325
326
327
328
328
329
328
328
327
327
328
328
328

Wednesday 27

Waxing Gibbous 89%

17:35

03:23

12 Good
13 OK
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 OK
03 Good
04 OK
05 OK
06 OK

Sun - Rise: 05:13, Set: 21:15, Transit: 13:14. Moon - Rise: 17:35, Set: 03:23. Civil Dark: 21:58 - 04:30. Nautical Dark: 22:58 - 03:29. Astro Dark: 01:04 - N/A

Total Clouds (% Sky Obscured)

0
33
67
100
100
93
85
84
78
66
51
51
51
37
20
6
18
27
23

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
17
28
29
17
6
9
11
14

High Clouds (% Sky Obscured)

0
32
65
94
93
82
78
67
59
41
36
40
51
37
20
0
18
27
23

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
1
2
0
0
0
0
26
20
10
31
24
8

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
17
16
16
15
16
16
14
14
15
14
13
12
10
10
9
9
9

Dew Point (°C)

9
9
9
10
10
11
11
12
11
10
9
8
7
6
4
3
1
3
5

Relative Humidity (%)

53
50
52
53
54
59
64
71
72
73
75
71
69
65
61
55
50
56
62

Pressure (mb)

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

Ozone (du)

328
329
329
330
331
332
333
334
334
335
336
336
335
335
335
335
336
337
338

Forecast for Upton, Cornwall, United Kingdom (50.54,-4.43)

Generated: 21/05/26 12:56:01. Forecast: 21/05/26 to 27/05/26. Timezone: UTC+1.00