Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 6%

06:03

13:52

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

Sun - Rise: 08:11, Set: 16:09, Transit: 12:10. Moon - Rise: 06:03, Set: 13:52. Civil Dark: 16:48 - 07:32. Nautical Dark: 17:30 - 06:49. Astro Dark: 18:10 - 06:09

Total Clouds (% Sky Obscured)

34
34
13
7
22
5
12
63
67
73
100
100
100
100
100
96
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

12
2
0
7
13
3
9
45
54
66
100
100
100
99
66
45
45
46
60
60
69
77
100
100

Medium Clouds (% Sky Obscured)

34
4
2
0
0
0
0
0
0
0
0
2
24
37
38
67
48
69
100
100
100
98
90
92

High Clouds (% Sky Obscured)

25
17
0
0
10
4
6
40
37
73
45
10
4
26
30
93
100
100
100
100
100
100
55
45

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
7
7
6

Fog (%)

0
0
0
0
0
0
0
0
0
9
39
100
100
100
99
98
98
1
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
22
54
72
88
81
64
54

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.7
0.5
0.3
0

Wind Speed/Direction (mph)

8
8
5
4
4
4
3
3
2
2
1
2
3
3
4
4
4
5
6
9
12
15
16
18

Chance of Frost

Temperature (°C)

9
9
7
6
5
5
4
4
3
2
2
2
1
1
2
2
3
4
5
8
9
9
10
10

Feels Like (°C)

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

Dew Point (°C)

6
6
6
4
4
4
3
2
1
1
0
-1
-1
-1
-1
1
1
2
3
5
6
7
8
9

Relative Humidity (%)

81
85
91
91
93
93
91
89
88
88
86
86
84
84
86
88
88
88
86
82
84
85
90
91

Pressure (mb)

1013
1013
1014
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1015
1015
1014
1013

Ozone (du)

359
359
364
354
352
345
339
335
331
326
322
319
316
312
311
309
309
309
308
305
303
302
302
304

Wednesday 17

Waning Crescent 3%

07:13

No Set

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
12 Bad
13 Bad

Sun - Rise: 08:11, Set: 16:09, Transit: 12:11. Moon - Rise: 07:13, Set: No Set. Civil Dark: 16:48 - 07:32. Nautical Dark: 17:31 - 06:50. Astro Dark: 18:11 - 06:10

Total Clouds (% Sky Obscured)

100
100
100
100
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
84
100
100
100
100
100
67
48
28
45
42
64
72
74
100
85
89
76
76
85

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

35
20
20
20
20
61
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
7
9
6
5
5
6
8
7
9
9
0
9
9
9
9
9
9
9
0
1
2
2
2

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

Precipitation Probability (%)

68
70
75
95
95
95
95
95
69
75
65
40
10
8
17
37
82
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.3
0.2
0
0.6
0.7
0.4
0.6
0.5
0.2
0.4
0.3
0
0
0
0
0
0.7
1.1
1.4
2.2
2.3
2.5
1.7
2.7

Wind Speed/Direction (mph)

18
19
19
20
20
20
22
21
21
20
17
12
7
4
2
3
4
5
6
10
15
16
16
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
91
93
93
93
95
92
95
93
96
96
92
95
93
93
93
95
96
98
96
95
95
90

Pressure (mb)

1012
1011
1011
1010
1009
1009
1008
1008
1008
1008
1007
1008
1008
1008
1007
1006
1006
1005
1004
1002
1001
1000
998
997

Ozone (du)

302
303
301
302
305
308
313
317
315
318
316
313
313
313
310
304
302
295
295
295
300
302
299
295

Thursday 18

Waning Crescent 1%

08:17

14:23

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

Sun - Rise: 08:12, Set: 16:10, Transit: 12:11. Moon - Rise: 08:17, Set: 14:23. Civil Dark: 16:49 - 07:33. Nautical Dark: 17:31 - 06:51. Astro Dark: 18:11 - 06:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
65
9
6
7
0
1
4
1
17
20
14
12
6
0
17
36
25
13

Low Clouds (% Sky Obscured)

50
75
76
77
57
36
0
9
6
7
0
1
4
1
17
20
14
12
6
0
17
36
23
12

Medium Clouds (% Sky Obscured)

100
100
100
99
50
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
56
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
2
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

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

Precipitation Probability (%)

95
95
45
30
7
1
1
0
0
0
1
2
1
2
2
3
2
2
2
3
2
4
4
7

Precipitation Amount (mm)

3
0.8
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)

21
24
17
15
17
17
14
10
9
9
9
9
9
9
9
8
8
7
6
6
7
8
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
5
5
4
3
3
3
4
4
3
4
4
3
4
4
4
4
4
4
5
7
7
8

Dew Point (°C)

10
10
10
8
7
6
5
5
3
3
3
3
3
3
4
4
4
4
4
4
5
6
6
6

Relative Humidity (%)

91
91
88
87
81
84
79
81
78
79
78
79
81
81
84
84
85
85
86
86
84
80
78
77

Pressure (mb)

997
997
997
999
1001
1004
1006
1007
1009
1010
1011
1012
1012
1013
1013
1014
1015
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

295
294
308
320
329
333
347
359
366
372
379
377
373
371
379
386
384
378
359
339
322
329
322
315

Friday 19

Waning Crescent 0%

09:10

15:04

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

Sun - Rise: 08:13, Set: 16:10, Transit: 12:12. Moon - Rise: 09:10, Set: 15:04. Civil Dark: 16:49 - 07:33. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:12 - 06:11

Total Clouds (% Sky Obscured)

4
11
18
23
28
31
30
36
35
36
41
74
76
57
72
56
85
82
84
88
92
95
97
98

Low Clouds (% Sky Obscured)

4
10
15
23
28
31
30
36
35
36
41
55
53
53
59
55
67
56
50
63
68
72
68
90

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
9
14
20
46
70
74
83
88
92
96

High Clouds (% Sky Obscured)

0
0
1
0
1
1
2
2
2
2
5
25
29
9
15
3
6
30
35
35
35
35
35
40

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
Very Light Rain

Precipitation Probability (%)

5
6
8
8
10
9
7
9
10
7
10
12
9
17
19
15
26
26
25
35
33
26
42
62

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
0.2

Wind Speed/Direction (mph)

9
7
6
5
5
4
4
4
4
4
5
5
5
6
7
9
10
11
12
14
16
18
20
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
87
88
90
90
90
91
90
91
91
91
90
90
90
87
88
85
87
85
84
84
84
84

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1017
1016
1015
1015
1014
1013
1012
1011
1010
1009
1009
1008
1007
1006
1005
1004
1003

Ozone (du)

311
307
305
304
298
296
294
293
286
284
285
287
291
296
297
301
304
306
309
311
313
313
320
327

Saturday 20

New Moon 2%

09:52

15:59

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
12 Bad
13 Bad

Sun - Rise: 08:13, Set: 16:10, Transit: 12:12. Moon - Rise: 09:52, Set: 15:59. Civil Dark: 16:50 - 07:34. Nautical Dark: 17:32 - 06:52. Astro Dark: 18:12 - 06:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
85
69
54
69
85
100
99
99
98
94
96
94
95
92

Low Clouds (% Sky Obscured)

100
88
73
61
63
65
66
67
66
61
56
49
44
56
67
79
50
49
48
48
46
45
51
54

Medium Clouds (% Sky Obscured)

97
99
100
100
100
100
100
91
100
50
43
33
40
69
85
98
96
95
94
75
56
40
55
61

High Clouds (% Sky Obscured)

45
60
78
100
98
100
100
85
68
49
38
13
2
0
0
1
57
57
61
90
90
81
57
52

ISS Passover

Visibility (miles)

7
9
9
8
9
4
2
4
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

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

Precipitation Probability (%)

76
95
95
95
95
95
95
49
22
15
22
26
30
38
38
24
32
33
31
31
29
21
35
39

Precipitation Amount (mm)

0.3
0.7
0.8
0.7
0.5
1.2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

21
21
20
12
7
8
9
7
5
4
5
4
4
4
5
5
4
3
2
2
2
2
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
2
5
6
4
2
2
3
3
3
2
3
2
3
3
3
3
3
2
2
3
2
7

Dew Point (°C)

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

Relative Humidity (%)

82
81
87
90
93
91
94
94
91
91
93
93
93
93
93
93
93
93
93
93
88
85
81
81

Pressure (mb)

1001
1000
1000
999
999
999
998
998
998
998
998
998
998
998
998
998
998
999
999
1000
1000
1000
1000
1000

Ozone (du)

330
332
335
335
338
338
340
343
346
347
346
349
349
367
384
396
403
410
417
423
424
424
425
424

Sunday 21

Waxing Crescent 2%

10:22

17:05

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
12 Bad
13 Bad

Sun - Rise: 08:14, Set: 16:11, Transit: 12:13. Moon - Rise: 10:22, Set: 17:05. Civil Dark: 16:50 - 07:34. Nautical Dark: 17:32 - 06:52. Astro Dark: 18:13 - 06:12

Total Clouds (% Sky Obscured)

90
81
77
77
80
85
89
92
95
100
100
100
100
100
100
100
99
98
96
95
95
95
97
98

Low Clouds (% Sky Obscured)

52
48
44
41
51
61
71
74
76
77
73
71
66
77
87
99
97
94
91
82
75
69
80
87

Medium Clouds (% Sky Obscured)

71
69
72
77
75
65
60
67
78
94
89
83
76
84
93
100
86
74
63
53
44
35
51
67

High Clouds (% Sky Obscured)

51
44
41
29
15
10
5
30
55
80
87
93
100
100
100
100
70
43
18
27
39
52
61
70

ISS Passover

Visibility (miles)

9
9
9
8
8
6
4
3
5
7
9
9
9
9
7
4
2
5
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

40
41
39
34
63
84
95
79
70
65
63
56
36
74
93
95
95
95
95
95
89
51
58
59

Precipitation Amount (mm)

0
0
0
0
0.3
0.6
1.1
0.5
0.4
0.3
0.3
0
0
0.3
0.5
0.5
0.7
0.8
0.8
0.7
0.5
0
0
0

Wind Speed/Direction (mph)

4
4
4
4
4
3
3
2
3
4
5
5
5
6
7
8
10
8
8
7
6
8
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
81
84
87
90
93
94
96
96
94
94
94
96
98
96
98
98
98
94
94
93
94
93
93

Pressure (mb)

1000
1000
1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1001
1001
1000
999
999
998
998
998
998
998
998

Ozone (du)

423
422
426
429
432
435
437
439
438
436
435
434
433
432
430
429
428
428
429
429
431
433
435
432

Monday 22

Waxing Crescent 6%

10:45

18:18

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: 08:14, Set: 16:12, Transit: 12:13. Moon - Rise: 10:45, Set: 18:18. Civil Dark: 16:51 - 07:35. Nautical Dark: 17:33 - 06:52. Astro Dark: 18:13 - 06:12

Total Clouds (% Sky Obscured)

99
97
94
92
94
95
96
94
92
90
93
94
100
96
92
91
94
98
100
100
100
100

Low Clouds (% Sky Obscured)

92
89
86
83
75
67
57
38
21
4
11
18
23
31
37
43
44
45
50
42
34
26

Medium Clouds (% Sky Obscured)

83
68
51
33
30
27
29
48
49
50
60
70
79
76
73
67
57
50
38
38
39
43

High Clouds (% Sky Obscured)

79
61
45
31
22
12
3
32
62
90
93
94
100
71
41
12
58
89
100
100
99
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

Fog (%)

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

Precipitation Probability (%)

54
46
37
22
18
14
8
25
30
27
20
12
5
5
4
1
2
1
0
1
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

Wind Speed/Direction (mph)

11
12
11
10
9
7
5
4
3
3
2
2
1
2
2
2
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
7
6
5
5
5
4
4
4
4
4
4
4
4
3
3
2
2
2
3

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
93
93
91
91
91
91
91
91
91
91
93
93
93
94
93
93
90
88

Pressure (mb)

999
999
1000
1000
1001
1002
1002
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1009
1009
1009

Ozone (du)

429
426
424
422
420
420
420
420
417
414
411
410
410
409
408
407
405
405
404
403
403
404

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 16/12/25 14:37:06. Forecast: 16/12/25 to 22/12/25. Timezone: UTC+0.00