Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 6

Waning Gibbous 93%

18:47

11:05

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
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:05, Set: 16:13, Transit: 12:09. Moon - Rise: 18:47, Set: 11:05. Civil Dark: 16:52 - 07:26. Nautical Dark: 17:34 - 06:44. Astro Dark: 18:13 - 06:05

Total Clouds (% Sky Obscured)

88
90
92
94
100
100
100
100
100
100
100
100
100
100
92
100
97
69
61
59
60
70
79
97

Low Clouds (% Sky Obscured)

88
86
85
86
100
100
100
95
100
100
90
91
100
100
77
93
90
69
61
58
60
68
76
81

Medium Clouds (% Sky Obscured)

88
90
92
93
78
89
92
95
99
100
100
100
98
95
76
83
33
0
0
0
0
0
2
63

High Clouds (% Sky Obscured)

88
90
92
94
99
100
97
100
100
100
100
100
100
86
86
74
47
60
0
0
0
8
31
87

ISS Passover

Visibility (miles)

9
9
0
0
0
0
1
4
0
0
1
1
1
1
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
3
13
34
52
54
57
59
6
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

18
55
68
95
67
78
43
59
78
63
95
95
81
36
23
16
4
3
1
0
5
2
2
11

Precipitation Amount (mm)

0
0.3
0.3
0.7
0
0.6
0
0
0.6
0.2
2.9
1.8
0.4
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
11
10
13
12
11
13
14
17
19
21
23
23
24
23
22
21
18
16
15
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
98
98
98
98
96
96
98
96
96
96
98
90
90
87
88
90
95
91
95
93
91

Pressure (mb)

1003
1003
1002
1002
1001
1000
999
999
999
999
999
998
998
997
998
998
999
1001
1001
1003
1004
1005
1005
1006

Ozone (du)

287
286
288
286
284
287
288
289
286
286
290
292
290
291
294
295
299
303
307
308
306
306
307
306

Sunday 7

Waning Gibbous 86%

20:14

11:37

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
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:06, Set: 16:13, Transit: 12:09. Moon - Rise: 20:14, Set: 11:37. Civil Dark: 16:52 - 07:27. Nautical Dark: 17:33 - 06:45. Astro Dark: 18:13 - 06:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

77
81
69
72
75
76
81
72
78
71
81
74
74
69
66
75
72
79
87
100
94
91
99
94

Medium Clouds (% Sky Obscured)

100
98
74
100
100
100
100
100
100
100
100
100
100
51
45
32
47
63
75
75
81
99
100
100

High Clouds (% Sky Obscured)

100
100
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
7
8
8
6
9
9
9
9
9
9
9
9
5
9
9
9
9
7
0
0
0

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

Precipitation Probability (%)

1
16
33
51
37
47
58
21
20
11
15
39
42
36
28
18
20
16
12
52
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0
0
0
0
0
0.2
0
0
0
0
0
0
0
1.5
2.5
2.4
3.1

Wind Speed/Direction (mph)

14
16
15
16
17
16
17
16
16
15
14
13
15
14
14
14
14
14
12
12
14
15
18
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
91
90
84
85
88
88
90
91
91
93
95
93
95
96
95
96
95
95
96
98
96
98

Pressure (mb)

1006
1006
1006
1006
1006
1005
1006
1006
1007
1007
1008
1008
1009
1008
1008
1008
1008
1008
1008
1007
1007
1006
1006
1005

Ozone (du)

308
306
308
311
316
320
324
327
331
337
343
344
346
340
340
339
338
335
330
327
321
309
301
296

Monday 8

Waning Gibbous 77%

21:38

11:59

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
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:07, Set: 16:13, Transit: 12:10. Moon - Rise: 21:38, Set: 11:59. Civil Dark: 16:52 - 07:28. Nautical Dark: 17:33 - 06:46. Astro Dark: 18:13 - 06:07

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
97
97
100
100
100
100
89
91
94
96
98
97
95

Low Clouds (% Sky Obscured)

92
93
92
94
100
100
100
96
100
97
100
70
87
58
56
63
67
76
71
70
75
79
75
73

Medium Clouds (% Sky Obscured)

100
100
100
100
100
91
97
100
100
100
90
90
88
99
100
99
89
80
84
88
92
96
89
82

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
85
60
70
41
75
65
99
100
47
47
64
76
92
87
83

ISS Passover

Visibility (miles)

0
1
2
2
4
4
9
9
9
7
9
9
4
0
2
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

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

Precipitation Probability (%)

95
95
95
95
95
89
73
94
81
94
95
58
93
95
95
41
37
16
4
7
9
6
12
12

Precipitation Amount (mm)

2.5
3.5
3.2
3.1
1.4
0.7
0.3
1
0.7
0.9
0.9
0
0.7
0.7
0.7
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

26
28
30
32
32
33
33
33
32
32
30
27
24
22
17
14
12
12
10
10
11
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
95
95
92
90
89
90
90
93
95
98
96
92
93
93
95
93
95
95
95
93

Pressure (mb)

1004
1003
1002
1001
1000
999
998
998
997
998
998
999
1000
1000
1001
1002
1003
1003
1004
1005
1006
1007
1007
1008

Ozone (du)

292
288
287
287
285
284
283
286
288
289
291
290
289
288
289
289
291
292
295
297
296
297
299
299

Tuesday 9

Waning Gibbous 67%

22:56

12:15

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 OK
15 OK
16 OK
17 OK
18 OK
19 OK
20 Bad
21 OK
22 OK

Sun - Rise: 08:08, Set: 16:13, Transit: 12:10. Moon - Rise: 22:56, Set: 12:15. Civil Dark: 16:52 - 07:29. Nautical Dark: 17:33 - 06:47. Astro Dark: 18:13 - 06:07

Total Clouds (% Sky Obscured)

93
96
98
100
96
99
100
95
91
73
70
63
52
41
34
22
23
22
23
25
27
59
23
15

Low Clouds (% Sky Obscured)

74
74
73
72
69
69
69
68
71
73
68
63
52
41
34
22
23
22
23
25
27
35
23
15

Medium Clouds (% Sky Obscured)

73
60
23
6
3
0
0
0
0
0
8
16
19
10
4
0
0
0
0
7
16
24
18
12

High Clouds (% Sky Obscured)

78
80
92
100
93
99
100
75
63
12
0
0
0
0
0
0
0
0
0
0
0
21
2
2

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 (%)

8
11
12
7
13
13
6
11
14
9
13
24
21
21
21
20
9
3
0
2
1
0
1
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
9
9
8
7
7
7
7
8
8
8
9
12
14
13
12
11
10
8
7
6
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
5
6
5
5
5
5
6
7
6
7
7
7
7
7
6
7
6
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

93
93
95
95
95
95
95
95
93
95
95
91
85
82
81
81
84
88
91
94
94
93
94
93

Pressure (mb)

1008
1009
1010
1010
1011
1011
1012
1012
1013
1014
1015
1015
1016
1017
1017
1018
1019
1020
1020
1021
1022
1022
1023
1023

Ozone (du)

300
298
295
296
296
298
301
301
304
305
309
311
311
315
318
322
322
320
320
316
316
318
318
317

Wednesday 10

Waning Gibbous 57%

22:56

12:28

23 Good
00 OK
01 OK
02 OK
03 OK
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

Sun - Rise: 08:09, Set: 16:13, Transit: 12:11. Moon - Rise: 22:56, Set: 12:28. Civil Dark: 16:52 - 07:30. Nautical Dark: 17:33 - 06:48. Astro Dark: 18:13 - 06:08

Total Clouds (% Sky Obscured)

6
13
17
21
37
62
50
69
81
93
95
67
72
70
74
82
74
58
41
47
53
59
69
82

Low Clouds (% Sky Obscured)

6
13
17
21
37
47
50
59
57
63
65
67
71
69
62
56
55
53
41
47
53
59
69
82

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
9
28
49
54
54

High Clouds (% Sky Obscured)

0
1
3
2
6
14
4
30
58
82
80
65
56
55
59
69
53
31
10
31
53
59
69
82

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
Very Light Rain
None
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
2
0
2
0
0
4
6
2
6
5
10
16
36
46
50
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
5
4
5
3
4
4
3
4
3
5
5
5
5
5
4
4
5
5
5
6
6

Dew Point (°C)

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

Relative Humidity (%)

94
93
93
93
91
91
91
90
90
90
90
87
85
80
81
84
88
90
90
93
93
93
93
95

Pressure (mb)

1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1018
1018
1017
1017
1017
1016

Ozone (du)

318
316
318
317
313
310
310
309
307
307
305
304
303
302
300
299
297
297
298
298
300
302
304
303

Thursday 11

Third Quarter 46%

00:10

12:40

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
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:10, Set: 16:13, Transit: 12:11. Moon - Rise: 00:10, Set: 12:40. Civil Dark: 16:52 - 07:31. Nautical Dark: 17:34 - 06:49. Astro Dark: 18:13 - 06:09

Total Clouds (% Sky Obscured)

95
96
96
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

93
93
94
94
96
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
89

Medium Clouds (% Sky Obscured)

54
54
54
50
40
21
16
16
20
30
45
45
50
60
55
55
58
55
60
50
35
29
31
33

High Clouds (% Sky Obscured)

90
87
84
81
87
94
100
100
100
100
100
100
100
99
98
97
98
98
99
71
40
5
30
56

ISS Passover

Visibility (miles)

9
9
8
6
5
6
8
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

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

Precipitation Probability (%)

88
64
49
47
46
44
33
39
35
31
45
54
76
67
64
72
55
41
31
37
44
56
65
70

Precipitation Amount (mm)

0.9
0.3
0
0.2
0
0
0
0
0
0
0
0
0.6
0.4
0.3
0.6
0.2
0
0
0
0
0
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
10
10
10
10
10
10
10
10
10
10
10
10
11
11
11
11
10
10
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

8
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
8
8
8
8
8

Relative Humidity (%)

93
93
95
96
95
95
93
90
93
95
95
90
88
84
84
83
81
85
88
93
93
91
90
90

Pressure (mb)

1016
1016
1015
1014
1014
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1008

Ozone (du)

301
300
300
301
301
302
302
303
302
301
300
302
303
305
305
305
306
306
306
306
307
308
309
308

Friday 12

Waning Crescent 36%

01:22

12:51

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 OK

Sun - Rise: 08:10, Set: 16:13, Transit: 12:12. Moon - Rise: 01:22, Set: 12:51. Civil Dark: 16:52 - 07:32. Nautical Dark: 17:34 - 06:50. Astro Dark: 18:14 - 06:10

Total Clouds (% Sky Obscured)

100
94
89
84
90
95
100
100
100
100
99
97
96
90
84
75
62
45
19

Low Clouds (% Sky Obscured)

83
81
82
83
82
81
80
83
86
90
91
91
92
88
84
75
62
45
19

Medium Clouds (% Sky Obscured)

43
49
51
57
74
87
99
97
96
94
81
60
39
37
47
37
20
10
3

High Clouds (% Sky Obscured)

81
56
31
10
12
28
34
37
34
33
24
11
0
17
37
55
39
20
1

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

80
70
51
32
31
32
23
27
31
38
51
56
55
43
37
41
32
23
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
91
91
91
91
90
90
88
88
87
88
93
95
91
87
84
87
88

Pressure (mb)

1008
1008
1009
1009
1010
1010
1010
1011
1011
1012
1012
1013
1013
1013
1014
1014
1014
1015
1015

Ozone (du)

307
306
307
308
309
309
310
311
311
311
311
313
316
318
317
315
314
313
312

Forecast for Upton, Cornwall, United Kingdom (50.54,-4.42)

Generated: 06/12/25 23:44:21. Forecast: 06/12/25 to 12/12/25. Timezone: UTC+0.00