Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 6

Waning Gibbous 93%

17:08

11:04

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
14 Bad
15 Bad

Sun - Rise: 08:01, Set: 16:02, Transit: 12:02. Moon - Rise: 17:08, Set: 11:04. Civil Dark: 16:41 - 07:22. Nautical Dark: 17:24 - 06:39. Astro Dark: 18:05 - 05:59

Total Clouds (% Sky Obscured)

93
94
96
71
75
63
85
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

77
78
71
71
75
60
71
74
61
83
64
75
70
48
82
85
100
100
93
85
81
91
81
100

Medium Clouds (% Sky Obscured)

9
31
0
0
0
0
0
28
56
98
98
97
93
94
88
57
74
100
100
100
100
100
38
30

High Clouds (% Sky Obscured)

38
94
87
28
9
63
81
100
100
100
52
100
100
100
100
100
99
100
100
100
98
77
75
22

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
1
2
3
3
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

37
36
14
17
17
10
11
2
0
0
1
8
15
41
49
33
22
51
95
95
95
95
95
59

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0.8
0.7
1
0.8
0.3

Wind Speed/Direction (mph)

17
17
15
15
14
12
11
10
9
7
6
6
6
6
7
8
9
9
11
13
14
16
18
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
85
85
87
85
87
91
93
95
93
95
96
96
98
96
96
98
96
95
95
93
92
87

Pressure (mb)

998
999
1000
1000
1001
1002
1002
1002
1002
1002
1002
1001
1001
1000
1000
999
999
999
999
998
997
997
996
997

Ozone (du)

279
280
282
284
283
284
285
284
282
281
285
289
289
289
289
288
287
286
286
286
287
292
293
294

Sunday 7

Waning Gibbous 86%

18:33

11:34

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
14 Bad
15 Bad

Sun - Rise: 08:03, Set: 16:02, Transit: 12:02. Moon - Rise: 18:33, Set: 11:34. Civil Dark: 16:41 - 07:23. Nautical Dark: 17:24 - 06:40. Astro Dark: 18:04 - 06:00

Total Clouds (% Sky Obscured)

100
85
71
78
62
79
71
49
60
59
67
100
88
94
100
100
100
100
100
63
73
79
100
100

Low Clouds (% Sky Obscured)

100
72
59
78
61
77
71
49
43
58
41
38
51
41
42
44
39
41
38
47
46
48
51
47

Medium Clouds (% Sky Obscured)

23
18
11
0
0
0
0
28
35
2
4
21
51
80
100
100
100
100
56
31
49
55
71
48

High Clouds (% Sky Obscured)

45
15
0
0
1
15
15
26
41
21
47
100
67
83
100
100
100
100
100
15
15
15
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
3
6
4
7
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

13
3
0
1
7
0
0
0
0
0
0
3
49
59
68
62
37
26
23
1
7
32
29
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
21
18
15
14
13
12
12
12
12
13
14
14
15
14
12
11
11
12
12
13
12
12
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
83
87
90
90
90
90
91
90
90
93
91
87
87
88
91
91
90
86
89
87
87
86
87

Pressure (mb)

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

Ozone (du)

294
297
301
302
304
305
305
306
304
303
306
308
308
314
318
321
324
327
333
339
335
334
335
333

Monday 8

Waning Gibbous 77%

20:02

11:54

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
14 Bad
15 Bad

Sun - Rise: 08:04, Set: 16:02, Transit: 12:03. Moon - Rise: 20:02, Set: 11:54. Civil Dark: 16:41 - 07:24. Nautical Dark: 17:24 - 06:41. Astro Dark: 18:04 - 06:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
95
89
83
83

Low Clouds (% Sky Obscured)

44
51
50
45
82
79
88
82
68
64
71
84
84
86
90
90
90
100
98
94
81
66
53
55

Medium Clouds (% Sky Obscured)

40
74
43
87
33
100
100
100
100
100
100
100
100
100
100
100
98
96
97
99
95
89
83
83

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
74
63
59
10
38
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
3
3
3
3
7
3
4
2
3
3
4
7
9
9
9
9
3
5

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

Precipitation Probability (%)

7
2
6
44
52
95
95
95
95
95
95
95
95
95
95
95
95
84
50
55
55
78
84
95

Precipitation Amount (mm)

0
0
0
0
0
1.1
1.8
1.1
1.1
1.1
1.2
1.8
2.1
3.5
1.8
0.9
0.4
0.3
0
0
0
0.4
0.6
0.9

Wind Speed/Direction (mph)

9
9
8
9
7
7
7
15
17
19
19
21
23
22
22
24
25
25
25
25
25
22
20
16

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
13
13
13
13
13
13
13
12
13
13
14
14
14
14
14
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
93
93
95
95
96
93
92
92
90
90
90
92
92
92
90
89
89
89
87
89
92
92

Pressure (mb)

1008
1008
1008
1008
1008
1008
1007
1006
1005
1004
1004
1002
1001
999
998
998
998
998
998
998
998
998
998
999

Ozone (du)

331
330
327
324
322
315
309
301
296
291
289
288
287
285
285
284
287
287
287
287
288
287
286
286

Tuesday 9

Waning Gibbous 67%

21:27

12:09

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 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 OK
14 OK
15 OK

Sun - Rise: 08:05, Set: 16:01, Transit: 12:03. Moon - Rise: 21:27, Set: 12:09. Civil Dark: 16:41 - 07:25. Nautical Dark: 17:24 - 06:42. Astro Dark: 18:04 - 06:02

Total Clouds (% Sky Obscured)

83
85
79
73
65
77
89
100
98
95
92
88
78
77
80
81
36
81
75
72
47
34
29
32

Low Clouds (% Sky Obscured)

61
66
52
40
27
35
43
51
51
48
46
46
50
51
56
62
36
62
55
49
44
34
29
32

Medium Clouds (% Sky Obscured)

81
75
68
65
58
69
84
98
76
52
2
2
2
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

19
7
15
10
15
27
44
63
60
58
61
42
27
24
35
35
2
45
45
45
0
0
0
0

ISS Passover

Visibility (miles)

4
5
3
5
7
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

Light Rain
Very Light Rain
Very 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

Precipitation Probability (%)

80
60
70
56
22
17
18
7
1
3
0
1
4
1
3
5
3
3
4
8
7
2
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
13
12
10
10
9
9
10
9
9
10
10
10
10
10
9
10
11
11
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
92
93
93
90
87
87
87
88
90
91
93
93
91
91
90
90
87
87
84
84
84
87

Pressure (mb)

1000
1001
1002
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1009
1010
1010
1011
1012
1014
1014
1015
1016
1016
1017

Ozone (du)

287
289
290
291
291
291
292
292
292
293
295
296
296
295
296
297
301
303
305
306
309
315
314
311

Wednesday 10

Waning Gibbous 57%

22:47

12:21

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

Sun - Rise: 08:06, Set: 16:01, Transit: 12:03. Moon - Rise: 22:47, Set: 12:21. Civil Dark: 16:41 - 07:26. Nautical Dark: 17:24 - 06:43. Astro Dark: 18:04 - 06:02

Total Clouds (% Sky Obscured)

35
41
28
17
7
10
8
40
40
7
2
9
24
34
30
36
52
54
54
53
60
66
73
65

Low Clouds (% Sky Obscured)

35
38
26
13
0
0
0
0
0
0
0
0
0
0
30
36
52
50
49
50
48
47
46
43

Medium Clouds (% Sky Obscured)

0
0
2
0
0
2
0
3
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
16
0
0
4
10
8
35
35
2
0
9
24
30
4
3
1
0
0
2
8
16
30
27

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
6
3
0
0
0
0
0
0
0
0
0
0
0
0
2
1
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)

11
9
9
9
9
8
8
8
7
6
5
6
6
6
6
4
4
4
5
6
7
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
91
90
91
90
91
91
90
90
90
87
88
90
93
93
94
94
91
87
83
84
83
83

Pressure (mb)

1019
1019
1020
1021
1022
1022
1023
1023
1023
1023
1023
1024
1023
1022
1022
1023
1023
1023
1023
1022
1022
1021
1021
1020

Ozone (du)

313
313
319
319
319
319
317
318
317
317
316
316
315
315
314
314
314
314
311
307
304
302
300
299

Thursday 11

Third Quarter 46%

00:02

12:32

16 Bad
17 OK
18 OK
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

Sun - Rise: 08:07, Set: 16:01, Transit: 12:04. Moon - Rise: 00:02, Set: 12:32. Civil Dark: 16:41 - 07:27. Nautical Dark: 17:24 - 06:44. Astro Dark: 18:04 - 06:03

Total Clouds (% Sky Obscured)

51
22
37
57
75
83
92
100
92
83
71
60
48
37
58
79
100
100
100
100
100
99
98
94

Low Clouds (% Sky Obscured)

42
22
33
35
39
39
41
32
34
41
48
44
43
37
58
79
99
97
95
93
90
88
84
85

Medium Clouds (% Sky Obscured)

0
0
3
3
5
8
11
14
25
31
42
40
35
29
31
27
24
19
29
25
25
20
15
15

High Clouds (% Sky Obscured)

20
11
16
12
7
14
21
32
53
75
71
60
48
37
58
78
80
86
94
99
97
96
95
80

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
1
3
8
17
19
23
28
31
16
16
15
8
20
23
17
20
25
37
55

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
88
90
90
90
91
90
91
90
91
90
90
90
91
93
91
90
88
88
88
88
88
88
88

Pressure (mb)

1020
1020
1020
1019
1019
1019
1018
1017
1017
1016
1015
1014
1014
1014
1013
1013
1013
1013
1013
1012
1012
1012
1012
1011

Ozone (du)

301
303
305
304
302
301
299
298
297
296
296
295
295
295
295
295
295
296
297
298
299
300
301
301

Friday 12

Waning Crescent 36%

01:15

12:42

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: 16:01, Transit: 12:04. Moon - Rise: 01:15, Set: 12:42. Civil Dark: 16:41 - 07:28. Nautical Dark: 17:24 - 06:45. Astro Dark: 18:05 - 06:04

Total Clouds (% Sky Obscured)

92
82
77
72
77
84
92
99
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
82
77
72
77
84
92
99
98
94
79
62
69
78
69
58
50
41
33
29

Medium Clouds (% Sky Obscured)

15
14
15
16
26
35
39
38
39
39
35
55
73
94
81
71
63
62
62
53

High Clouds (% Sky Obscured)

63
44
44
44
42
60
78
95
99
99
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

Fog (%)

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

Precipitation Probability (%)

66
58
47
30
13
21
21
20
34
50
65
64
67
83
72
63
58
53
46
32

Precipitation Amount (mm)

0.4
0.2
0
0
0
0
0
0
0
0.2
0.4
0.3
0.4
0.8
0.5
0.3
0.3
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
95
93
93
93
91
93
93
93
95
93
91
90
87
88
87
88
85
81

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016

Ozone (du)

304
306
308
309
310
312
311
311
311
311
311
311
312
313
313
313
313
313
312
312

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

Generated: 06/12/25 15:56:40. Forecast: 06/12/25 to 12/12/25. Timezone: UTC+0.00