Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 9

Waning Gibbous 77%

20:14

11:59

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: 08:07, Set: 16:13, Transit: 12:09. Moon - Rise: 20:14, 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)

87
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

89
79
87
76
88
76
80
74
100
100
98
90
92
92
92
100
100
92
100
98
95
100
100
100

Medium Clouds (% Sky Obscured)

89
98
62
55
100
100
89
93
99
100
100
100
100
100
100
100
96
97
86
98
85
92
97
80

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
99
87
90

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
2
2
0
4
9
9
9
3
9
9
2
1

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

100
100
0
0
0
0
0
100
100
100
100
100
95
95
95
95
95
95
95
95
95
95
84
66

Precipitation Amount (mm)

0.2
0.3
0
0
0
0
0
0.3
0.6
1.1
2.5
3.4
2.2
2.9
3.3
1.8
0.8
1.4
1.3
1.1
0.9
0.8
0.8
0.4

Wind Speed/Direction (mph)

14
15
17
18
17
15
13
15
17
21
24
28
26
27
29
31
29
29
28
30
30
30
31
32

Chance of Frost

Temperature (°C)

11
11
11
12
12
12
11
11
12
12
12
12
12
11
12
12
12
12
12
12
13
12
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
97
97
90
91
91
94
95
92
95
94
95
95
96
96
93
93
93
93
93
90
93
95
96

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1006
1006
1005
1004
1004
1003
1002
1001
1000
999
999
998
997
997
997
996
996

Ozone (du)

338
338
336
337
334
331
330
324
318
310
301
297
296
293
289
289
286
284
283
285
287
288
289
288

Wednesday 10

Waning Gibbous 67%

21:38

11:59

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: 08:08, Set: 16:13, Transit: 12:10. Moon - Rise: 21:38, Set: 11:59. Civil Dark: 16:52 - 07:29. Nautical Dark: 17:33 - 06:47. Astro Dark: 18:13 - 06:07

Total Clouds (% Sky Obscured)

100
92
61
59
68
65
62
62
61
46
66
62
62
56
59
64
67
80
73
70
72
71
66
59

Low Clouds (% Sky Obscured)

78
86
57
59
68
64
60
61
61
46
66
62
62
56
59
64
67
80
73
70
72
71
66
59

Medium Clouds (% Sky Obscured)

99
56
48
45
45
45
25
0
0
0
0
1
0
2
1
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
80
55
59
56
53
55
28
1
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
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 (%)

36
36
28
24
6
4
4
6
3
4
5
8
12
17
8
5
10
15
17
20
11
6
1
17

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)

33
30
27
22
19
17
15
15
14
13
13
13
13
13
13
13
12
12
12
13
12
11
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
93
87
85
87
87
88
90
91
95
93
91
93
91
93
93
95
95
95
95
95
90
88

Pressure (mb)

996
997
997
999
1001
1002
1004
1005
1006
1007
1007
1008
1008
1008
1009
1010
1010
1010
1011
1012
1013
1014
1015
1016

Ozone (du)

287
286
285
287
288
288
289
290
290
293
295
295
300
301
301
301
302
304
303
306
307
311
317
322

Thursday 11

Third Quarter 57%

22:56

12:15

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: 08:09, Set: 16:13, Transit: 12:10. Moon - Rise: 22:56, Set: 12:15. Civil Dark: 16:52 - 07:30. Nautical Dark: 17:33 - 06:48. Astro Dark: 18:13 - 06:08

Total Clouds (% Sky Obscured)

60
44
57
70
64
58
62
65
65
67
60
67
56
56
55
50
64
71
62
80
81
90
92
100

Low Clouds (% Sky Obscured)

60
44
57
70
64
58
62
65
65
67
60
67
56
56
55
50
64
71
62
69
66
70
80
78

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
2
40

High Clouds (% Sky Obscured)

0
0
0
0
3
10
2
4
3
0
0
0
0
1
2
2
0
0
2
40
40
43
60
33

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 (%)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
15

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
12
11
11
8
6
5
6
6
5
6
7
7
8
10
10
11
12
14
15
15
15
16
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
81
83
85
91
91
93
93
93
93
93
94
93
91
91
93
93
93
91
91
93
93
91
90

Pressure (mb)

1017
1017
1017
1019
1020
1020
1020
1020
1021
1021
1022
1021
1021
1020
1020
1019
1018
1018
1017
1016
1016
1016
1015
1014

Ozone (du)

320
316
313
310
308
308
309
307
308
308
310
306
303
304
304
301
302
302
303
308
316
314
312
310

Friday 12

Waning Crescent 46%

00:10

12:28

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: 08:10, Set: 16:13, Transit: 12:11. Moon - Rise: 00:10, Set: 12:28. Civil Dark: 16:52 - 07:31. Nautical Dark: 17:34 - 06:49. Astro Dark: 18:13 - 06:09

Total Clouds (% Sky Obscured)

98
98
99
100
100
100
100
100
100
99
99
98
99
99
100
100
100
100
100
100
100
99
94
65

Low Clouds (% Sky Obscured)

70
69
74
78
74
74
73
70
69
71
73
77
85
92
100
90
77
66
42
21
1
1
1
1

Medium Clouds (% Sky Obscured)

22
11
2
0
100
100
100
76
100
93
84
92
95
97
100
100
100
97
100
63
99
99
71
41

High Clouds (% Sky Obscured)

34
40
45
100
100
100
100
100
100
84
71
56
38
51
56
67
78
100
100
100
68
56
71
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
6
8
8
9
9
9
5
3
8
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
Light Rain
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

16
7
17
27
30
46
58
46
25
34
34
45
74
95
95
95
95
95
76
39
5
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0
0
0
0
0
0.4
0.9
1.4
0.6
0.8
1
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

18
19
18
19
18
19
20
20
18
17
17
18
18
17
17
14
9
8
10
8
6
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
91
90
93
93
95
91
91
93
91
90
88
93
95
93
88
82
79
82
81
78
77
74

Pressure (mb)

1014
1013
1012
1011
1011
1010
1010
1010
1009
1009
1009
1008
1008
1007
1007
1008
1008
1009
1010
1010
1011
1012
1013
1013

Ozone (du)

309
307
308
308
307
308
309
313
314
317
320
321
322
326
328
330
332
332
333
334
335
335
336
336

Saturday 13

Waning Crescent 36%

01:22

12:40

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: 08:11, Set: 16:13, Transit: 12:11. Moon - Rise: 01:22, Set: 12:40. Civil Dark: 16:52 - 07:32. Nautical Dark: 17:34 - 06:50. Astro Dark: 18:13 - 06:10

Total Clouds (% Sky Obscured)

66
90
83
91
93
95
92
90
89
90
92
91
92
90
87
80
72
67
74
66
67
72
63
64

Low Clouds (% Sky Obscured)

15
27
42
47
52
53
47
45
43
40
42
50
51
49
45
44
44
55
58
51
49
56
63
64

Medium Clouds (% Sky Obscured)

28
75
71
83
83
80
49
66
59
55
55
50
40
40
40
19
28
35
47
46
47
46
32
29

High Clouds (% Sky Obscured)

40
87
57
33
25
75
68
59
45
35
35
30
25
40
45
21
0
0
0
0
0
2
3
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
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
1
5
6
5
16
17
14
9
13
22
20
13
8
14
34
42
31
11
2
3
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
5
5
5
5
5
5
5
5
5
6
6
6
5
5
5
5
5
5
5
5
5
5

Relative Humidity (%)

70
72
74
77
81
84
87
88
88
90
90
90
91
93
91
90
91
94
94
93
93
93
88
79

Pressure (mb)

1014
1014
1014
1015
1015
1016
1016
1016
1017
1017
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1021
1021
1021
1022

Ozone (du)

337
337
336
335
336
337
336
334
335
337
342
349
353
361
372
386
396
403
405
403
391
383
379
376

Sunday 14

Waning Crescent 27%

02:32

12:51

12 Bad
13 Bad
14 OK
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: 08:11, Set: 16:13, Transit: 12:12. Moon - Rise: 02:32, Set: 12:51. Civil Dark: 16:52 - 07:33. Nautical Dark: 17:34 - 06:50. Astro Dark: 18:14 - 06:11

Total Clouds (% Sky Obscured)

54
45
41
47
53
70
78
87
96
97
97
94
91
89
88
81
76
74
77
81
86
91
95
100

Low Clouds (% Sky Obscured)

54
45
41
47
53
60
64
69
76
74
71
69
64
60
57
63
65
73
73
74
75
76
78
79

Medium Clouds (% Sky Obscured)

23
14
10
2
1
0
16
25
27
31
38
44
36
28
23
26
32
31
42
51
55
51
57
66

High Clouds (% Sky Obscured)

8
12
13
23
34
35
20
19
21
17
17
18
17
16
15
17
19
40
40
61
64
76
83
99

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 (%)

4
4
1
1
4
1
4
9
10
9
6
6
3
8
3
4
12
11
9
15
8
16
20
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)

12
12
12
12
12
12
12
12
12
12
11
11
11
12
14
16
17
18
19
19
20
21
21
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
78
80
79
82
84
84
88
93
96
96
95
95
93
93
93
93
93
95
95
95
95
95
95

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017
1016
1016
1016
1015
1015

Ozone (du)

369
361
354
346
343
339
335
332
328
325
320
316
312
311
309
308
310
312
313
313
313
314
310
307

Monday 15

Waning Crescent 19%

03:43

13:03

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: 08:12, Set: 16:13, Transit: 12:12. Moon - Rise: 03:43, Set: 13:03. Civil Dark: 16:52 - 07:33. Nautical Dark: 17:34 - 06:51. Astro Dark: 18:14 - 06:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
90
81
71
81
90
100
91
84
79
85
91
97
99
99
100

Low Clouds (% Sky Obscured)

86
93
100
100
100
100
88
76
65
67
69
71
81
90
100
91
83
76
81
86
92
93
92
92

Medium Clouds (% Sky Obscured)

69
62
58
65
70
84
88
91
94
88
81
65
73
87
100
90
80
70
76
77
73
82
87
100

High Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
67
33
0
37
68
100
70
50
30
40
45
60
77
87
100

ISS Passover

Visibility (miles)

9
9
9
9
7
5
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
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

Precipitation Probability (%)

22
39
62
82
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
84
70
66
51

Precipitation Amount (mm)

0
0
0.2
0.4
0.9
1.5
2.1
3.6
5.1
2.3
2.3
1.9
1.1
1
0.8
1.2
1.4
1.6
0.9
0.8
0.4
0.2
0.3
0

Wind Speed/Direction (mph)

22
23
23
23
23
23
23
21
19
18
18
18
18
18
17
16
16
16
16
17
17
18
17
17

Chance of Frost

Temperature (°C)

11
11
11
11
11
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
11
11
11
11

Feels Like (°C)

6
6
6
5
5
5
5
4
4
4
4
4
4
5
6
6
6
6
6
7
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
91
91
93
93
95
96
96
98
96
98
96
98
98
98
96
98
98
98
98
96
96

Pressure (mb)

1014
1013
1012
1011
1010
1010
1009
1009
1008
1008
1008
1008
1007
1007
1007
1006
1006
1005
1004
1004
1005
1005
1004
1004

Ozone (du)

304
302
299
297
296
295
294
293
293
293
294
294
295
294
294
294
295
295
296
296
297
297
298
299

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

Generated: 09/12/25 00:26:33. Forecast: 09/12/25 to 15/12/25. Timezone: UTC+0.00