Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 72%

12:25

03:36

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 OK
12 OK
13 OK
14 Good
15 Good
16 Good
17 Good

Sun - Rise: 08:15, Set: 16:10, Transit: 12:13. Moon - Rise: 12:25, Set: 03:36. Civil Dark: 16:50 - 07:35. Nautical Dark: 17:33 - 06:52. Astro Dark: 18:13 - 06:12

Total Clouds (% Sky Obscured)

94
87
98
87
89
97
97
93
85
93
86
77
76
85
75
76
56
34
35
28
15
13
10
1

Low Clouds (% Sky Obscured)

80
87
76
85
81
84
86
83
46
59
52
72
70
81
73
74
35
0
4
0
6
8
0
0

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
0
0

High Clouds (% Sky Obscured)

7
7
11
10
23
84
81
58
64
84
78
67
43
22
52
57
25
34
35
28
15
4
2
1

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
0
0

Wind Speed/Direction (mph)

9
8
10
11
11
8
9
10
10
12
12
12
13
12
12
12
11
11
10
10
9
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-0
-0
-0
0
1
1
1
1
1
0
0
-1
-1
-1
-1
-1
-0
-0
1
1
1
2
1
0

Dew Point (°C)

-0
-0
0
0
-1
0
0
1
0
-2
-2
-2
-2
-3
-3
-3
-3
-3
-2
-1
-0
-0
-1
-1

Relative Humidity (%)

71
71
71
71
67
70
70
70
67
61
61
60
60
59
59
58
59
57
59
64
65
66
66
71

Pressure (mb)

1029
1030
1030
1031
1031
1031
1031
1031
1032
1032
1032
1033
1033
1034
1034
1035
1035
1035
1035
1035
1035
1035
1035
1035

Ozone (du)

278
277
278
276
275
274
275
276
276
278
279
277
278
279
282
285
292
300
301
302
304
304
304
304

Tuesday 30

Waxing Gibbous 82%

12:53

05:08

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

Sun - Rise: 08:15, Set: 16:11, Transit: 12:13. Moon - Rise: 12:53, Set: 05:08. Civil Dark: 16:51 - 07:35. Nautical Dark: 17:34 - 06:52. Astro Dark: 18:14 - 06:12

Total Clouds (% Sky Obscured)

12
13
40
2
38
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

Low Clouds (% Sky Obscured)

0
0
31
0
38
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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
0
0

High Clouds (% Sky Obscured)

12
13
20
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

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 (%)

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

Chance of Frost

Temperature (°C)

4
3
2
2
2
2
1
2
1
1
1
1
1
1
0
1
1
2
3
3
4
4
3
2

Feels Like (°C)

1
-1
-1
-1
0
0
-0
0
0
0
-0
0
-0
-0
-1
0
1
1
3
3
3
3
2
1

Dew Point (°C)

0
1
-0
-1
-1
-0
-1
-0
-1
-0
-0
-0
-1
-1
-1
-1
-2
-2
-2
-2
-1
-0
0
0

Relative Humidity (%)

79
83
83
83
84
86
86
88
89
89
91
91
91
89
89
88
81
76
72
71
69
76
82
86

Pressure (mb)

1035
1035
1035
1035
1035
1035
1035
1035
1035
1034
1034
1034
1033
1033
1033
1033
1033
1032
1031
1030
1030
1029
1029
1028

Ozone (du)

305
304
306
303
303
303
304
303
301
303
303
306
308
310
310
309
310
311
312
311
312
312
312
309

Wednesday 31

Waxing Gibbous 91%

13:36

06:38

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

Sun - Rise: 08:15, Set: 16:12, Transit: 12:14. Moon - Rise: 13:36, Set: 06:38. Civil Dark: 16:52 - 07:35. Nautical Dark: 17:35 - 06:52. Astro Dark: 18:15 - 06:12

Total Clouds (% Sky Obscured)

0
6
4
5
61
69
85
85
86
84
90
58
51
40
40
40
28
10
15
46
53
50
28
23

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
37
51
52
79
87
48
15
20
25
25
2
2
12
31
43
37
28
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0
0

High Clouds (% Sky Obscured)

0
6
4
5
61
69
85
85
73
56
40
45
51
40
2
30
19
2
2
0
2
2
2
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 (%)

0
0
0
0
0
0
0
0
0
1
2
0
0
1
1
0
0
0
2
3
17
17
3
1

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)

4
4
4
4
4
5
5
6
6
6
6
8
8
9
9
10
11
11
12
11
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
0
0
-1
-1
-2
-1
-1
-1
-1
-1
-1
-2
-2
-1
0
2
3
2
2
2
2

Dew Point (°C)

-0
-0
-1
-1
-1
-1
-1
-0
0
0
0
0
0
0
0
0
-0
-0
1
1
1
3
3
1

Relative Humidity (%)

86
86
86
86
86
86
86
88
88
88
88
83
82
80
82
79
75
71
71
70
72
81
83
80

Pressure (mb)

1028
1027
1026
1026
1025
1024
1023
1022
1021
1020
1019
1018
1017
1016
1016
1015
1015
1014
1013
1012
1012
1011
1011
1011

Ozone (du)

308
310
313
315
316
316
316
318
318
318
321
312
309
310
315
324
327
327
321
319
317
319
327
333

Thursday 1

Waxing Gibbous 97%

14:38

07:55

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

Sun - Rise: 08:15, Set: 16:13, Transit: 12:14. Moon - Rise: 14:38, Set: 07:55. Civil Dark: 16:53 - 07:35. Nautical Dark: 17:36 - 06:52. Astro Dark: 18:15 - 06:12

Total Clouds (% Sky Obscured)

20
15
13
15
15
14
17
69
74
73
65
68
57
37
14
31
16
32
17
15
15
10
9
15

Low Clouds (% Sky Obscured)

20
15
13
15
15
14
17
35
42
39
33
30
18
9
0
0
0
0
0
0
1
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
4
5
6
6
2
17
8
28
17
15
15
10
9
2

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
1
5
18
2
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
8

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
6
12

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
2
2
2
1
2
1
0
0
0
0
-1
-1
-0
1
1
1
1
0
1
0
0

Dew Point (°C)

0
0
0
0
0
0
0
0
0
-0
-0
-0
0
0
0
0
1
1
1
1
1
1
1
2

Relative Humidity (%)

77
77
77
79
82
82
83
85
80
79
79
80
82
85
88
86
83
77
73
72
72
72
76
86

Pressure (mb)

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

Ozone (du)

334
337
339
342
344
342
339
333
330
325
319
313
309
306
301
296
292
291
291
289
291
291
293
291

Friday 2

Waxing Gibbous 100%

15:58

08:52

18 OK
19 OK
20 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 Good
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: 08:15, Set: 16:15, Transit: 12:15. Moon - Rise: 15:58, Set: 08:52. Civil Dark: 16:54 - 07:35. Nautical Dark: 17:37 - 06:52. Astro Dark: 18:16 - 06:12

Total Clouds (% Sky Obscured)

12
14
21
42
66
90
84
57
50
30
18
2
62
61
76
81
81
82
82
87
87
85
70
41

Low Clouds (% Sky Obscured)

2
4
7
19
32
47
46
43
43
28
14
0
59
60
54
46
44
45
41
39
37
32
27
16

Medium Clouds (% Sky Obscured)

8
14
21
40
28
39
39
39
36
24
11
2
8
2
2
7
12
22
33
38
38
35
27
14

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
33
30
15
14
9
3
17
29
37
36
36
41

ISS Passover

Visibility (miles)

4
9
5
7
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 (%)

7
19
21
12
7
7
9
8
7
5
3
0
24
20
14
11
8
0
0
0
0
0
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
0
0

Wind Speed/Direction (mph)

6
5
7
6
7
6
5
4
5
4
3
4
4
5
6
7
8
9
10
11
11
11
11
10

Chance of Frost

Temperature (°C)

3
3
2
2
2
2
1
1
1
1
0
0
-0
1
0
0
1
2
2
2
2
2
2
1

Feels Like (°C)

-1
-1
-2
-2
-3
-3
-3
-3
-2
-1
-2
-2
-2
-2
-2
-2
-2
-3
-3
-1
-2
-2
-2
-3

Dew Point (°C)

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

Relative Humidity (%)

93
86
85
85
80
81
84
86
84
78
75
74
72
73
71
71
69
68
65
65
65
66
65
65

Pressure (mb)

1002
1002
1002
1002
1002
1001
1001
1001
1001
1001
1000
1000
1000
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001

Ozone (du)

291
301
306
314
322
329
330
336
342
347
356
371
386
392
399
405
408
411
414
416
419
422
422
423

Saturday 3

Full Moon 99%

17:28

09:30

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

Sun - Rise: 08:14, Set: 16:16, Transit: 12:15. Moon - Rise: 17:28, Set: 09:30. Civil Dark: 16:55 - 07:35. Nautical Dark: 17:38 - 06:52. Astro Dark: 18:17 - 06:12

Total Clouds (% Sky Obscured)

32
32
26
28
30
36
31
31
21
16
10
10
6
3
0
7
9
9
3
4
3
15
27
31

Low Clouds (% Sky Obscured)

11
5
1
2
3
4
4
3
2
2
2
2
1
1
0
3
4
4
3
1
2
1
0
0

Medium Clouds (% Sky Obscured)

10
6
5
5
5
5
16
23
21
16
10
10
6
3
0
7
9
9
3
4
1
3
5
7

High Clouds (% Sky Obscured)

32
32
26
28
30
36
31
31
21
16
10
10
6
3
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
0
0
0
0
0
0
-0
-0
-1
-1
-1
-1
-1
-1
-1
0
1
2
2
2
2
1
1

Feels Like (°C)

-3
-4
-4
-4
-4
-4
-5
-4
-4
-5
-5
-5
-5
-5
-5
-5
-4
-4
-5
-2
-2
-3
-2
-3

Dew Point (°C)

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

Relative Humidity (%)

64
66
69
70
71
70
70
70
68
67
66
66
65
62
60
57
55
53
50
49
49
48
52
54

Pressure (mb)

1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1004
1004
1004
1004
1004
1005
1005
1005
1006

Ozone (du)

424
423
421
420
414
407
400
396
391
386
385
383
382
381
380
379
380
381
382
382
381
381
379
377

Sunday 4

Waning Gibbous 96%

No Rise

09:55

18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 OK
09 OK
10 OK
11 OK

Sun - Rise: 08:14, Set: 16:17, Transit: 12:15. Moon - Rise: No Rise, Set: 09:55. Civil Dark: 16:56 - 07:35. Nautical Dark: 17:39 - 06:52. Astro Dark: 18:18 - 06:12

Total Clouds (% Sky Obscured)

25
20
24
28
35
45
32
17
4
5
4
4
5
11
18
19
25
27

Low Clouds (% Sky Obscured)

2
3
5
18
30
42
28
16
4
5
4
4
5
11
18
19
18
18

Medium Clouds (% Sky Obscured)

7
6
10
15
16
17
11
6
0
0
1
1
2
2
2
18
25
27

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

1
1
0
1
1
0
0
0
0
0
0
0
1
1
2
11
14
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
9
9
10
11
9
6
4
4
3
3
3
2
3
3
4

Chance of Frost

Temperature (°C)

0
0
0
1
1
1
1
0
-0
-1
-1
-1
-1
-1
-1
-1
0
2

Feels Like (°C)

-2
-4
-4
-3
-3
-3
-3
-4
-3
-3
-3
-4
-4
-3
-2
-2
-2
-2

Dew Point (°C)

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

Relative Humidity (%)

58
60
61
62
64
64
65
67
72
75
77
77
75
75
72
72
64
58

Pressure (mb)

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

Ozone (du)

375
375
375
375
375
375
376
374
371
369
371
372
374
374
374
374
373
371

Forecast for Bristol, Bristol, United Kingdom (51.45,-2.59)

Generated: 29/12/25 18:04:21. Forecast: 29/12/25 to 04/01/26. Timezone: UTC+0.00