Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 30

Waxing Gibbous 100%

21:11

04:32

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

Sun - Rise: 05:11, Set: 21:18, Transit: 13:15. Moon - Rise: 21:11, Set: 04:32. Civil Dark: 22:02 - 04:27. Nautical Dark: 23:04 - 03:25. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

22
39
53
63
99
100
100
100
100
100
100
100
100
100
98
100
100
95
91
64
63
73
70
63

Low Clouds (% Sky Obscured)

22
39
42
54
79
100
88
87
78
79
87
92
89
78
71
72
61
68
69
64
63
64
64
60

Medium Clouds (% Sky Obscured)

21
39
53
63
98
49
42
1
1
26
72
100
94
100
94
100
88
45
76
2
3
17
9
20

High Clouds (% Sky Obscured)

22
39
53
63
91
90
64
100
100
100
100
100
100
88
88
23
25
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
4
4
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
0
3
7
20
9
13
17
5
5
3
4
4
13
5
3
3
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
65
74
79
83
87
92
95
96
98
95
95
96
92
92
86
78
73
69
67
66
65
66
67

Pressure (mb)

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

Ozone (du)

339
343
344
346
354
355
349
344
343
341
338
335
334
336
338
343
346
352
349
345
339
340
341
339

Sunday 31

Full Moon 99%

22:15

05:11

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:10, Set: 21:19, Transit: 13:15. Moon - Rise: 22:15, Set: 05:11. Civil Dark: 22:03 - 04:26. Nautical Dark: 23:05 - 03:23. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

61
75
90
98
74
87
77
93
100
87
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

61
73
72
83
64
72
70
71
64
72
74
87
83
90
100
90
93
96
92
94
100
100
100
95

Medium Clouds (% Sky Obscured)

2
0
0
0
2
16
7
51
28
29
34
60
99
100
100
100
99
99
100
98
100
100
100
100

High Clouds (% Sky Obscured)

10
29
72
95
30
30
42
55
100
47
100
100
100
100
95
100
100
100
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
0
0
0
0
0
0
0

Fog (%)

0
0
0
0
0
0
0
7
12
8
0
1
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
5
2
7
68
95
95
95
95
95
77
77
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.7
1.8
1.4
1.7
1.5
0.3
0.3
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
73
78
84
95
95
96
96
96
98
96
96
96
95
93
92
92
98
98
98
98
96
96
98

Pressure (mb)

1019
1019
1019
1019
1019
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1013
1012
1012
1011
1010

Ozone (du)

335
334
334
333
333
333
333
331
330
327
326
325
324
324
322
324
323
325
326
328
330
333
339
344

Monday 1

Waning Gibbous 97%

23:10

06:02

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:09, Set: 21:20, Transit: 13:15. Moon - Rise: 23:10, Set: 06:02. Civil Dark: 22:04 - 04:25. Nautical Dark: 23:07 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
86
79
92
90
91
88
69
72
88
90
83
73
70
85
85
80
82
82
82
77

Low Clouds (% Sky Obscured)

88
75
85
74
74
73
81
79
77
79
69
64
80
82
81
73
65
84
78
76
76
74
75
69

Medium Clouds (% Sky Obscured)

100
50
55
43
33
45
71
23
8
0
0
28
18
27
16
17
36
29
27
20
18
12
5
3

High Clouds (% Sky Obscured)

100
100
100
100
50
31
45
36
50
59
28
35
30
0
0
0
0
0
0
0
10
16
31
37

ISS Passover

Visibility (miles)

0
0
0
1
0
0
0
8
7
9
9
9
9
9
9
9
9
8
9
9
6
9
9
9

Fog (%)

0
0
0
0
0
0
13
10
2
1
6
3
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

95
76
29
63
95
95
74
62
67
34
29
40
22
18
14
18
44
53
57
67
44
30
24
13

Precipitation Amount (mm)

0.7
0.3
0
0
0.7
0.5
0.4
0
0.3
0
0
0
0
0
0
0
0
0.3
0.3
0.5
0
0
0
0

Wind Speed/Direction (mph)

14
13
14
13
14
11
10
10
8
8
9
10
11
10
12
13
13
15
16
17
18
18
19
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
96
98
100
98
98
98
98
96
96
96
98
95
90
83
76
73
79
83
79
77
74

Pressure (mb)

1010
1009
1009
1008
1008
1008
1007
1007
1007
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1008
1008
1009
1009
1010

Ozone (du)

347
350
357
360
368
376
376
385
389
391
394
393
394
398
398
399
399
398
398
389
377
372
373
379

Tuesday 2

Waning Gibbous 93%

23:53

07:05

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:09, Set: 21:21, Transit: 13:15. Moon - Rise: 23:53, Set: 07:05. Civil Dark: 22:05 - 04:25. Nautical Dark: 23:09 - 03:21. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

59
56
56
53
56
56
58
62
65
83
100
100
100
100
100
100
100
100
100
72
67
83
37
90

Low Clouds (% Sky Obscured)

59
56
56
53
56
56
58
62
65
74
79
73
74
76
85
93
100
100
100
72
67
78
37
81

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
13
26
39
43
61
54
87
86
98
93
27
32
21
12
0
11

High Clouds (% Sky Obscured)

0
0
0
0
0
1
2
3
28
62
100
100
100
100
100
100
100
40
34
35
27
17
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
0
0
0
2
8
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
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

18
4
6
6
4
8
8
6
10
13
8
14
15
35
68
66
57
40
35
36
39
36
26
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

19
19
18
17
15
13
12
11
10
9
9
9
11
12
14
15
17
17
15
17
20
21
22
24

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
76
82
89
93
96
96
96
96
96
96
96
98
95
96
98
98
100
98
95
73
65
71
67

Pressure (mb)

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

Ozone (du)

377
369
362
357
353
351
348
346
346
345
345
344
346
345
346
349
353
362
368
370
370
375
380
382

Wednesday 3

Waning Gibbous 88%

00:25

08:14

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:08, Set: 21:22, Transit: 13:16. Moon - Rise: 00:25, Set: 08:14. Civil Dark: 22:06 - 04:24. Nautical Dark: 23:10 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

50
72
52
45
90
68
84
82
85
93
99
100
100
100
84
80
76
77
79
88
88
87
86
90

Low Clouds (% Sky Obscured)

50
72
52
45
80
68
76
76
78
80
81
82
84
84
64
49
40
48
59
69
65
67
69
66

Medium Clouds (% Sky Obscured)

22
38
32
15
0
0
0
0
20
42
58
88
79
57
24
14
17
16
18
13
23
30
34
34

High Clouds (% Sky Obscured)

0
0
0
0
0
6
14
21
42
77
95
98
99
100
41
50
54
49
48
36
33
33
39
69

ISS Passover

Visibility (miles)

9
5
9
9
9
9
9
9
9
8
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 (%)

30
28
32
26
26
29
29
24
25
29
15
29
30
16
29
28
27
26
23
20
20
18
17
16

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)

22
22
20
19
18
18
18
18
19
18
18
18
18
18
18
22
22
23
22
21
21
20
20
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
76
84
86
87
89
92
89
90
89
87
88
87
87
83
77
71
65
65
65
64
62
60
58

Pressure (mb)

1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1008
1008
1009
1009
1010
1010
1011
1011
1011

Ozone (du)

387
392
400
394
388
384
385
383
385
386
384
382
382
383
385
385
385
385
382
378
375
372
369
366

Thursday 4

Waning Gibbous 80%

00:49

09:27

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:07, Set: 21:23, Transit: 13:16. Moon - Rise: 00:49, Set: 09:27. Civil Dark: 22:08 - 04:23. Nautical Dark: 23:12 - 03:18. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

95
100
100
100
100
100
100
99
98
98
97
98
99
100
100
100
100
87
73
60
54
49
43
45

Low Clouds (% Sky Obscured)

62
57
57
51
44
42
44
71
81
81
81
79
77
75
71
68
64
63
62
60
54
49
43
45

Medium Clouds (% Sky Obscured)

29
33
40
47
58
76
88
97
95
94
94
96
98
100
100
100
99
66
33
1
1
0
0
3

High Clouds (% Sky Obscured)

87
100
100
100
100
68
37
0
3
6
14
40
70
100
98
97
85
50
22
0
0
0
0
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
4
1
1
0
0
1
2
3
4
5
7
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

15
14
19
25
33
48
59
71
77
86
95
95
95
95
95
95
88
71
59
52
44
41
44
43

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.4
0.5
0.7
0.8
1.1
1.5
0.8
0.7
0.7
0.4
0.3
0.2
0
0
0
0

Wind Speed/Direction (mph)

17
15
13
10
8
6
6
7
7
9
11
13
15
16
18
18
20
23
24
25
26
23
22
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
68
72
77
83
87
87
84
84
88
93
98
98
98
98
96
96
95
92
92
90
90
92
93

Pressure (mb)

1011
1011
1011
1011
1010
1010
1010
1009
1008
1007
1006
1006
1005
1004
1003
1003
1003
1003
1002
1002
1002
1003
1003
1003

Ozone (du)

364
363
362
360
358
357
355
354
353
349
346
342
348
353
358
364
371
377
385
392
400
399
399
398

Friday 5

Waning Gibbous 72%

01:08

10:41

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 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:07, Set: 21:24, Transit: 13:16. Moon - Rise: 01:08, Set: 10:41. Civil Dark: 22:09 - 04:22. Nautical Dark: 23:13 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

46
51
61
70
79
72
64
51
45
41
39
33
24
22
41
59
80
86
93
98

Low Clouds (% Sky Obscured)

46
48
56
65
73
70
64
51
45
41
39
33
24
22
36
37
41
39
37
36

Medium Clouds (% Sky Obscured)

6
9
6
3
0
0
0
0
0
0
0
5
9
15
17
17
18
28
36
47

High Clouds (% Sky Obscured)

7
11
8
4
0
6
12
18
13
7
0
29
24
22
41
52
50
65
73
86

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

42
39
31
27
25
24
18
15
19
19
10
17
16
13
12
9
2
7
10
13

Precipitation Amount (mm)

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
23
24
22
20
18
17
15
14
13
12
12
11
9
8
9
10
11
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
90
91
88
85
84
85
85
85
85
85
84
83
78
76
71
67
63
62
60

Pressure (mb)

1005
1007
1008
1010
1012
1014
1016
1017
1018
1018
1019
1019
1020
1021
1021
1022
1022
1023
1023
1023

Ozone (du)

396
394
392
390
388
386
384
383
381
379
378
377
374
370
367
365
363
362
361
360

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

Generated: 30/05/26 17:30:33. Forecast: 30/05/26 to 05/06/26. Timezone: UTC+1.00