Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 5%

07:03

00:03

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: 05:23, Set: 21:03, Transit: 13:14. Moon - Rise: 07:03, Set: 00:03. Civil Dark: 21:44 - 04:42. Nautical Dark: 22:40 - 03:46. Astro Dark: 00:02 - 02:21

Total Clouds (% Sky Obscured)

100
96
99
100
100
100
100
100
100
100
100
100
100
100
100
93
95
91
98
100
90
94
96
86

Low Clouds (% Sky Obscured)

87
84
87
86
70
98
99
87
96
94
95
93
100
100
100
92
92
73
89
87
71
81
92
72

Medium Clouds (% Sky Obscured)

73
87
86
99
100
100
100
100
100
100
100
100
68
70
38
0
18
50
89
98
86
57
86
45

High Clouds (% Sky Obscured)

60
38
60
39
92
95
78
96
96
100
100
100
100
97
18
68
71
65
87
100
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
7
4
4
1
0
4
1
0
0
0
0
9
9
9
9
9
0
8
7
7

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
2
4
1
56
1
7
5
0
6
0
1
0

Precipitation Type

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

Precipitation Probability (%)

55
23
49
48
63
91
95
95
95
95
95
95
95
95
91
26
9
2
6
50
49
62
70
78

Precipitation Amount (mm)

0
0
0.2
0.2
0.3
0.7
1.4
1.5
1.3
0.8
1.5
1.2
1.1
1.7
0.5
0
0
0
0
0.3
0.2
0.4
0.5
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
91
93
93
95
95
98
98
98
98
100
98
100
100
96
96
96
95
98
96
96
92
86

Pressure (mb)

1012
1012
1011
1011
1010
1010
1010
1009
1008
1008
1007
1007
1006
1005
1005
1004
1004
1004
1004
1005
1005
1005
1006
1006

Ozone (du)

378
375
372
372
373
373
371
370
369
372
376
380
385
391
391
387
386
385
384
384
387
387
387
389

Tuesday 19

Waxing Crescent 12%

08:25

00:57

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: 05:22, Set: 21:05, Transit: 13:14. Moon - Rise: 08:25, Set: 00:57. Civil Dark: 21:46 - 04:40. Nautical Dark: 22:42 - 03:44. Astro Dark: 00:07 - 02:16

Total Clouds (% Sky Obscured)

93
95
99
90
79
80
76
94
90
99
99
99
98
100
100
97
97
100
100
100
100
92
94
61

Low Clouds (% Sky Obscured)

81
78
73
83
67
75
58
84
81
78
93
94
87
96
96
94
89
100
100
100
100
85
89
61

Medium Clouds (% Sky Obscured)

29
47
73
56
46
31
31
27
30
78
71
57
53
88
60
37
68
72
75
66
61
39
18
0

High Clouds (% Sky Obscured)

0
0
0
0
1
11
33
9
20
17
0
0
1
0
0
0
1
1
37
4
5
2
7
20

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

59
47
50
64
53
42
33
10
29
36
83
95
95
73
58
32
29
40
57
36
22
24
21
15

Precipitation Amount (mm)

0.3
0.2
0.3
0.6
0.2
0
0
0
0
0
0.5
0.8
0.8
0.3
0
0
0
0
0.4
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
86
87
87
89
89
90
89
90
93
91
93
93
93
96
96
95
95
98
98
96
93
90
84

Pressure (mb)

1006
1007
1007
1008
1008
1008
1009
1009
1010
1011
1011
1012
1012
1012
1013
1013
1014
1014
1015
1016
1017
1018
1018
1019

Ozone (du)

393
391
391
393
398
395
397
396
392
392
390
385
379
377
369
367
360
356
355
355
352
348
347
348

Wednesday 20

Waxing Crescent 21%

09:52

01:33

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: 05:20, Set: 21:06, Transit: 13:14. Moon - Rise: 09:52, Set: 01:33. Civil Dark: 21:47 - 04:39. Nautical Dark: 22:44 - 03:42. Astro Dark: 00:12 - 02:11

Total Clouds (% Sky Obscured)

70
66
77
50
61
61
61
70
96
99
100
100
96
99
100
100
100
100
100
98
96
96
93
91

Low Clouds (% Sky Obscured)

69
62
66
50
61
61
61
47
64
67
75
66
77
81
73
86
77
78
77
78
79
85
80
78

Medium Clouds (% Sky Obscured)

2
0
0
0
0
3
2
9
56
62
79
56
57
28
25
46
39
37
37
43
39
36
25
30

High Clouds (% Sky Obscured)

39
45
63
8
8
4
3
49
60
92
99
100
84
95
100
97
100
100
92
78
54
45
46
51

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
9
2
1
1
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
8
49
49
49
49
49
49
49
49
49
49
49

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
6
0
9
2
1
0
0
0
0
4
0
0
0
0
1
17
2
1
2
2
2
3
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)

17
16
16
17
16
15
14
12
10
8
8
9
10
10
10
9
9
10
9
9
11
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
12
11
12
12
12
12
11
11
11
11
11
11
11
11
11
12
12
11
11
11

Relative Humidity (%)

77
73
69
72
74
74
78
83
90
98
98
98
98
98
98
98
98
100
98
96
92
84
79
78

Pressure (mb)

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

Ozone (du)

347
346
345
345
345
346
343
343
343
342
343
342
342
341
339
338
338
337
337
338
339
340
340
341

Thursday 21

Waxing Crescent 31%

11:18

01:59

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: 05:19, 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)

89
92
83
76
100
93
97
97
73
89
78
69
73
90
100
100
100
98
92
93
86
78
64
70

Low Clouds (% Sky Obscured)

81
66
52
37
24
12
2
10
0
6
0
0
0
0
0
1
3
6
8
5
11
10
8
10

Medium Clouds (% Sky Obscured)

26
24
15
20
31
54
84
90
54
84
52
51
54
59
96
100
100
95
80
61
37
40
42
33

High Clouds (% Sky Obscured)

52
55
55
52
100
86
79
69
47
45
38
32
15
66
95
98
99
72
77
87
72
44
24
39

ISS Passover

Visibility (miles)

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

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

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
9
4
2
9
2
0
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
74
72
69
67
69
72
75
73
82
74
78
82
87
92
96
96
96
98
96
92
89
85
81

Pressure (mb)

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

Ozone (du)

340
340
340
340
339
345
348
349
349
347
347
349
349
349
350
347
346
346
346
346
345
346
347
346

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)

86
92
98
97
100
100
100
100
100
100
100
100
100
100
99
99
98
97
96
88
81
73
71
70

Low Clouds (% Sky Obscured)

19
13
6
1
1
5
3
32
51
59
61
62
61
74
85
96
92
88
84
88
81
73
71
70

Medium Clouds (% Sky Obscured)

48
58
77
78
86
92
95
90
100
95
97
49
55
39
22
7
2
1
1
2
9
17
13
6

High Clouds (% Sky Obscured)

51
65
79
82
100
100
100
100
100
100
100
100
100
82
67
60
67
59
43
14
6
0
0
0

ISS Passover

Visibility (miles)

7
7
7
7
6
7
6
6
2
8
6
9
8
4
5
5
5
6
6
7
7
8
9
9

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

Precipitation Type

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

Precipitation Probability (%)

0
0
1
17
24
31
47
68
64
33
31
17
6
8
5
5
4
4
2
7
9
10
12
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
15
14
14
15
15
14
13
13
12
12
12
11
11
11
11
11
12
12
12
12

Relative Humidity (%)

78
77
77
76
78
81
85
89
96
98
98
96
98
98
98
98
98
96
96
95
92
87
83
79

Pressure (mb)

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

Ozone (du)

346
345
345
345
345
345
346
344
345
349
352
357
358
361
363
365
367
372
377
382
386
389
393
384

Saturday 23

First Quarter 54%

12:39

02:32

12 Bad
13 Bad
14 Bad
15 OK
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: 05:17, 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)

73
63
52
40
46
58
72
71
66
61
56
52
48
63
79
99
91
84
77
69
62
55
60
65

Low Clouds (% Sky Obscured)

73
63
52
40
46
58
72
71
66
61
56
52
47
53
60
66
69
72
75
68
62
55
60
65

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
5
16
23
18
12
11
31
51
72
52
27
3
2
1
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 (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

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 (%)

4
8
8
5
4
3
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
17
16
16
15
15
15
13
12
12
12
11
10
9
9
10
9
9
9
13
14
15
15

Dew Point (°C)

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

Relative Humidity (%)

74
71
71
71
71
74
75
79
83
90
96
96
96
96
95
96
95
93
93
90
84
79
74
72

Pressure (mb)

1025
1026
1026
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030

Ozone (du)

374
364
362
359
357
352
348
343
341
339
336
335
335
334
333
333
332
331
330
329
328
327
326
325

Sunday 24

Waxing Gibbous 64%

13:56

02:44

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

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)

70
66
61
57
45
38
29
25
25
31
34
24
15
17
17
17
18
17
10

Low Clouds (% Sky Obscured)

70
65
61
57
45
36
26
17
11
4
12
15
15
17
17
17
18
17
10

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
8
14
14
8
5
3

High Clouds (% Sky Obscured)

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
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49
49

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
9
12
13
12
12
8
5
1
0
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
22
21
20
20
19
19
17
16
15
15
14
13
12
12
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

72
70
74
78
83
83
85
83
85
84
84
87
89
92
92
92
92
90
90

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1031
1030
1030
1030
1030
1030
1029
1029
1029

Ozone (du)

324
323
323
323
323
323
324
324
325
325
326
327
328
328
327
326
325
325
324

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

Generated: 18/05/26 12:26:15. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+1.00