Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 14

Waning Crescent 19%

03:40

13:13

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
17 Bad
18 Bad

Sun - Rise: 08:09, Set: 16:09, Transit: 12:09. Moon - Rise: 03:40, Set: 13:13. Civil Dark: 16:48 - 07:30. Nautical Dark: 17:30 - 06:48. Astro Dark: 18:10 - 06:08

Total Clouds (% Sky Obscured)

100
100
100
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

79
89
86
81
83
91
82
75
76
73
72
64
71
64
98
87
79
66
67
95
100
100
100
100

Medium Clouds (% Sky Obscured)

94
95
87
95
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
73
81
80
75
75
87
97
100
100
100
100
100
100
100
100
100
100
43
99
79
93
96

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

42
28
20
20
27
32
42
67
92
95
95
95
95
95
93
91
93
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0.4
0.7
0.8
0.5
0.6
0.6
0.4
0.4
0.4
0.9
0.8
0.7
1
1.9
2.9
2.5

Wind Speed/Direction (mph)

16
15
16
19
18
18
18
17
17
16
17
17
14
14
14
14
15
16
19
16
16
17
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
9
9
9
10
9
9
9
10
9
10
10
10
10
10
10
10
10
10

Relative Humidity (%)

90
89
89
88
88
88
87
87
88
90
90
91
91
93
91
91
93
92
90
92
90
88
90
90

Pressure (mb)

1011
1011
1010
1010
1009
1008
1007
1006
1006
1005
1004
1004
1004
1004
1004
1003
1003
1002
1002
1001
1001
1001
1001
1001

Ozone (du)

293
293
293
294
293
293
295
296
297
298
297
296
295
296
296
296
296
299
300
301
300
301
301
301

Monday 15

Waning Crescent 12%

04:51

13:30

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
17 OK
18 Bad

Sun - Rise: 08:10, Set: 16:09, Transit: 12:10. Moon - Rise: 04:51, Set: 13:30. Civil Dark: 16:48 - 07:31. Nautical Dark: 17:30 - 06:49. Astro Dark: 18:10 - 06:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
100
100
100
100
97
100
95
100
100
97
91
94
100
97
85
50
30
44

Low Clouds (% Sky Obscured)

100
100
80
74
46
41
45
55
55
29
10
10
0
0
0
0
0
4
0
0
0
0
0
15

Medium Clouds (% Sky Obscured)

100
100
100
100
100
99
100
100
96
100
96
100
95
100
100
97
91
93
100
97
76
50
30
44

High Clouds (% Sky Obscured)

77
100
100
100
100
83
37
65
54
46
77
42
35
30
30
30
25
8
9
2
14
1
1
0

ISS Passover

Visibility (miles)

4
9
9
9
4
3
4
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

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 (%)

95
95
95
84
95
95
95
43
14
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.6
1.7
1.2
0.4
0.8
0.6
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
15
11
10
10
7
11
13
11
10
9
9
8
8
8
8
9
10
10
9
8
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
7
8
6
6
5
4
4
4
4
4
4
4
3
3
5
5
5
5
6
5
4
2

Dew Point (°C)

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

Relative Humidity (%)

90
88
91
93
91
95
93
91
88
88
90
91
88
88
84
82
81
81
81
81
84
88
88
90

Pressure (mb)

1001
1001
1001
1002
1002
1003
1003
1004
1005
1005
1006
1007
1009
1010
1011
1012
1013
1013
1013
1014
1015
1016
1017
1018

Ozone (du)

303
302
301
299
297
299
301
303
303
305
307
314
321
323
322
329
340
349
343
337
338
351
359
366

Tuesday 16

Waning Crescent 6%

06:03

13:52

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
14 Bad
15 Bad
16 Bad
17 Bad
18 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: 17:31 - 06:49. Astro Dark: 18:11 - 06:09

Total Clouds (% Sky Obscured)

16
30
42
41
45
85
81
100
83
89
100
100
98
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

16
30
42
41
45
80
80
75
38
34
23
8
36
39
48
51
66
64
69
71
84
89
78
96

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
10
22
23
50
48
56
57
62
91
100
100
98
92
96
75
92
63
63

High Clouds (% Sky Obscured)

0
0
0
3
12
72
15
92
82
89
100
100
60
100
100
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
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
71
77
100
100
100
92
100
99
99
99
99
99
99
99
99
99
99
99
99
99

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
7
16
27
35
48
37
46
44
46
52
54
78

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
0.3

Wind Speed/Direction (mph)

3
3
4
3
2
2
2
2
1
2
2
2
3
4
6
8
10
11
12
13
13
12
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
89
89
91
89
88
88
86
84
83
80
79
76
76
79
79
81
78
81
85
87
87

Pressure (mb)

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

Ozone (du)

362
354
347
341
334
328
324
324
322
320
317
314
312
309
308
305
304
303
301
300
299
299
297
295

Wednesday 17

Waning Crescent 3%

07:13

14:23

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
17 Bad
18 Bad

Sun - Rise: 08:11, Set: 16:10, Transit: 12:11. Moon - Rise: 07:13, Set: 14:23. Civil Dark: 16:49 - 07:32. Nautical Dark: 17:31 - 06:50. Astro Dark: 18:11 - 06:10

Total Clouds (% Sky Obscured)

100
98
97
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)

89
85
77
76
85
88
88
90
91
91
92
91
92
92
93
93
94
96
94
99
89
76
64
56

Medium Clouds (% Sky Obscured)

97
94
95
97
100
100
86
91
100
100
100
98
100
100
100
100
99
100
100
97
100
100
100
100

High Clouds (% Sky Obscured)

100
73
73
76
100
100
100
90
73
74
89
100
100
100
100
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
9
9
9
4
3
4
3

Fog (%)

99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99

Precipitation Type

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

85
80
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.4
0.2
0.6
1.2
1
1.3
1.6
1.2
1.5
1.6
1.1
1.1
1.1
0.9
1.3
1.3
1.7
1.3
1.5
1.7
1.9
1.6
1.4
1

Wind Speed/Direction (mph)

15
15
16
15
15
15
14
12
11
10
10
10
9
9
10
11
12
12
13
15
16
17
18
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
82
87
88
85
85
87
87
90
90
90
85
87
88
91
90
87
85
83
85
90
91
91

Pressure (mb)

1015
1015
1014
1014
1013
1013
1012
1012
1011
1010
1010
1009
1008
1007
1007
1006
1005
1004
1003
1002
1002
1002
1002
1002

Ozone (du)

298
302
305
307
307
305
302
300
301
300
296
292
290
289
285
282
286
286
286
287
288
292
295
294

Thursday 18

Waning Crescent 1%

08:17

15:04

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

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

Total Clouds (% Sky Obscured)

100
100
74
48
22
17
6
0
12
28
39
89
78
66
66
62
65
57
56
59
55
52
43
35

Low Clouds (% Sky Obscured)

48
37
28
19
10
2
0
0
12
24
36
46
47
50
52
52
55
50
42
31
31
29
28
30

Medium Clouds (% Sky Obscured)

100
100
74
48
22
17
6
0
12
28
39
89
78
66
66
62
65
57
44
25
20
10
0
0

High Clouds (% Sky Obscured)

100
100
74
48
22
17
6
0
10
10
15
82
63
40
10
10
20
40
45
50
33
26
14
5

ISS Passover

Visibility (miles)

5
4
3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99

Precipitation Type

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

Precipitation Probability (%)

93
83
66
40
28
9
8
13
25
14
6
4
3
2
3
3
1
2
3
1
3
3
2
5

Precipitation Amount (mm)

0.5
0.5
0.3
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
15
12
9
8
6
7
7
11
13
13
13
8
7
7
8
10
11
10
10
8
7
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
95
91
88
88
90
91
91
90
84
82
81
81
78
77
75
76
75
75
77
78
81
83

Pressure (mb)

1003
1003
1004
1005
1005
1006
1007
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1016
1017
1017
1018
1018
1019
1019

Ozone (du)

295
301
307
310
304
298
304
313
320
325
331
337
340
344
347
351
356
360
363
366
369
358
347
336

Friday 19

Waning Crescent 0%

09:10

15:59

19 OK
20 Good
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
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

Sun - Rise: 08:13, Set: 16:10, Transit: 12:12. Moon - Rise: 09:10, Set: 15:59. Civil Dark: 16:50 - 07:33. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:12 - 06:11

Total Clouds (% Sky Obscured)

26
15
16
18
17
17
18
21
32
42
53
60
67
73
77
76
79
72
61
58
79
87
92
98

Low Clouds (% Sky Obscured)

26
15
16
18
17
17
18
21
30
39
40
49
58
70
77
76
79
70
58
49
38
25
12
14

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
15
29
31
30
26
25
24
23
22
27
29
30
34
43
52
68

High Clouds (% Sky Obscured)

2
0
0
0
0
6
12
17
32
42
53
60
67
73
77
76
79
72
61
58
70
61
56
50

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 (%)

99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
None
None
None
None

Precipitation Probability (%)

8
3
5
5
3
8
8
3
10
8
3
20
22
24
43
54
61
87
92
78
54
37
22
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.4
0
0
0
0

Wind Speed/Direction (mph)

4
3
3
3
3
3
3
3
3
3
4
4
5
7
8
10
12
14
12
10
8
9
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
2
2
2
1
1
1
1
1
2
2
2
3
3
3
4
5
4
4
4
4
4
4

Relative Humidity (%)

83
83
83
83
85
83
83
85
85
83
85
85
85
83
85
81
78
75
75
75
75
77
77
79

Pressure (mb)

1019
1019
1020
1019
1019
1019
1018
1018
1017
1017
1016
1015
1015
1014
1013
1012
1011
1010
1010
1009
1008
1007
1007
1007

Ozone (du)

329
323
316
310
303
297
296
295
294
292
291
289
290
290
291
295
299
303
307
312
316
315
314
313

Saturday 20

New Moon 2%

09:52

17:05

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: 08:13, Set: 16:11, Transit: 12:12. Moon - Rise: 09:52, 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)

99
100
86
73
60
73
89
100
99
98
97
91
82
75
65
56
46

Low Clouds (% Sky Obscured)

15
15
20
35
50
61
72
81
81
74
67
54
45
44
44
44
44

Medium Clouds (% Sky Obscured)

84
100
83
67
50
66
82
98
98
97
97
73
49
23
27
32
34

High Clouds (% Sky Obscured)

42
20
20
15
10
40
69
100
98
96
95
75
56
45
28
16
5

ISS Passover

Visibility (miles)

7
5
3
5
7
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99

Precipitation Type

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

Precipitation Probability (%)

51
72
92
95
85
71
58
40
75
91
95
91
89
87
75
57
22

Precipitation Amount (mm)

0
0.4
0.6
0.7
0.5
0.4
0.2
0
0.5
0.7
0.6
0.6
0.5
0.5
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
3
4
3
3
1
2
3
2
3
3
2
2
3
2
2

Dew Point (°C)

4
5
5
5
4
4
3
3
3
3
3
3
3
3
4
4
5

Relative Humidity (%)

82
88
93
91
91
90
89
89
89
89
88
88
86
88
88
87
85

Pressure (mb)

1006
1006
1006
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

320
326
333
349
365
382
379
377
374
379
385
390
392
395
397
393
389

Welcome to Clear Outside

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

Generated: 14/12/25 18:28:29. Forecast: 14/12/25 to 20/12/25. Timezone: UTC+0.00