Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 25

Waxing Crescent 25%

12:12

20:12

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

Sun - Rise: 07:38, Set: 16:01, Transit: 11:50. Moon - Rise: 12:12, Set: 20:12. Civil Dark: 16:39 - 07:00. Nautical Dark: 17:21 - 06:18. Astro Dark: 18:01 - 05:38

Total Clouds (% Sky Obscured)

63
48
34
39
57
91
47
43
49
40
36
74
57
100
64
45
39
48
20
8
11
39
47
54

Low Clouds (% Sky Obscured)

48
37
33
39
45
50
47
43
49
40
36
74
57
100
64
45
39
48
20
8
11
39
47
54

Medium Clouds (% Sky Obscured)

0
0
0
0
12
39
2
2
2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
3
3
0
0
1
0
0
0
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
71
72
76
80
82
85
86
86
86
79
75
75
74
75
81
83
83
85
86
86
88
91
91

Pressure (mb)

1006
1007
1008
1009
1010
1010
1011
1012
1014
1014
1015
1015
1015
1016
1016
1017
1018
1019
1019
1020
1020
1021
1021
1021

Ozone (du)

294
293
290
292
295
300
301
298
299
300
300
300
302
302
299
298
298
297
295
295
298
295
291
288

Wednesday 26

Waxing Crescent 34%

12:32

21:30

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

Sun - Rise: 07:39, Set: 16:00, Transit: 11:50. Moon - Rise: 12:32, Set: 21:30. Civil Dark: 16:39 - 07:01. Nautical Dark: 17:20 - 06:19. Astro Dark: 18:00 - 05:39

Total Clouds (% Sky Obscured)

48
0
0
0
56
100
100
100
100
100
100
100
100
100
99
99
97
88
93
100
100
100
100
100

Low Clouds (% Sky Obscured)

48
0
0
0
0
0
0
0
0
0
0
0
0
0
52
68
68
59
89
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
100
100
100
100
100
100
99
99
97
88
92
57
52
52
48
42

High Clouds (% Sky Obscured)

0
0
0
0
56
70
100
100
100
100
100
100
81
100
44
30
30
30
2
20
11
6
47
98

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
9
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
4
0
0
0
0
0
3
10
16
20
29
33
38
30
22
32

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)

5
5
5
5
4
3
3
2
3
2
3
4
5
5
5
6
6
6
6
7
8
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
0
-1
-1
-1
-1
-2
-2
-2
-2
-1
-1
-1
1
1
2
2
2
2
3
4
6
7
7

Relative Humidity (%)

91
91
89
91
89
89
89
87
84
80
76
73
71
73
75
80
80
80
79
82
85
90
93
93

Pressure (mb)

1021
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1022
1021
1021
1021
1020
1020
1020
1020
1019
1019
1018
1018
1018

Ozone (du)

287
286
287
286
286
286
287
286
284
283
281
281
281
282
281
281
278
276
274
273
272
271
270
271

Thursday 27

Waxing Crescent 44%

12:47

22:49

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:41, Set: 15:59, Transit: 11:50. Moon - Rise: 12:47, Set: 22:49. Civil Dark: 16:38 - 07:02. Nautical Dark: 17:20 - 06:20. Astro Dark: 18:00 - 05:40

Total Clouds (% Sky Obscured)

100
100
99
92
99
99
100
99
98
98
100
98
100
100
100
100
100
95
90
85
91
95
100
99

Low Clouds (% Sky Obscured)

100
85
77
72
98
84
88
91
88
95
91
96
100
100
100
100
95
86
78
74
74
73
56
55

Medium Clouds (% Sky Obscured)

36
28
13
12
14
21
11
33
28
59
72
52
83
96
80
91
98
91
84
81
14
21
26
40

High Clouds (% Sky Obscured)

100
100
95
71
48
91
100
63
30
27
87
45
100
100
100
100
94
71
42
17
47
73
100
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
4
0
0
0
5
9
6
5
5
6
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

18
31
30
11
22
2
1
1
7
7
25
22
21
6
5
26
58
65
71
58
30
16
3
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

270
268
267
265
264
263
263
264
264
264
262
261
260
260
261
263
263
262
260
258
257
258
260
262

Friday 28

First Quarter 55%

13:00

00:09

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

Sun - Rise: 07:42, Set: 15:59, Transit: 11:51. Moon - Rise: 13:00, Set: 00:09. Civil Dark: 16:37 - 07:04. Nautical Dark: 17:19 - 06:22. Astro Dark: 17:59 - 05:42

Total Clouds (% Sky Obscured)

99
98
76
57
33
33
33
32
39
31
30
52
72
95
63
35
6
35
59
85
86
96
84
91

Low Clouds (% Sky Obscured)

47
39
35
28
21
22
23
23
25
27
28
31
33
37
28
17
6
8
10
10
14
16
18
34

Medium Clouds (% Sky Obscured)

48
53
38
19
0
2
9
2
0
0
0
12
28
42
31
17
0
5
9
13
25
39
53
55

High Clouds (% Sky Obscured)

92
88
62
40
16
14
12
9
10
4
0
25
45
60
41
25
1
28
59
85
73
57
26
37

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 (%)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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
6
7
8
10
11
12
12
12
10
10
9
8
9
9
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
95
94
94
94
94
91
85
81
78
74
74
77
84
90
93
93
93
94
93
90
90

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1011

Ozone (du)

267
268
268
268
270
270
270
272
274
275
277
278
278
279
281
282
284
285
286
289
289
290
291
292

Saturday 29

Waxing Gibbous 66%

13:12

No Set

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:44, Set: 15:58, Transit: 11:51. Moon - Rise: 13:12, Set: No Set. Civil Dark: 16:37 - 07:05. Nautical Dark: 17:19 - 06:23. Astro Dark: 17:59 - 05:43

Total Clouds (% Sky Obscured)

97
99
99
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
97
96

Low Clouds (% Sky Obscured)

50
67
72
78
85
90
95
100
99
99
98
96
93
91
92
94
95
71
46
22
43
63
84
86

Medium Clouds (% Sky Obscured)

95
96
97
97
96
97
99
100
93
98
97
93
89
90
94
96
97
98
99
100
84
65
48
40

High Clouds (% Sky Obscured)

46
55
59
61
63
75
83
91
96
92
100
96
89
63
65
78
92
94
97
100
70
39
7
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
2
4
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
28
37
41
37
56
77
95
95
95
95
95
95
78
80
43
25
32
41
44
40
30
18
32

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.7
0.9
1.5
2.8
2
1.2
0.4
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
12
13
13
13
12
12
12
13
10
10
7
6
7
8
10
12
11
10
8
9
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
85
82
84
84
84
84
85
85
88
93
91
90
87
88
90
90
91
91
89
89
89
86

Pressure (mb)

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

Ozone (du)

291
293
295
296
299
301
302
303
307
307
307
308
311
314
316
322
327
332
334
336
337
339
340
342

Sunday 30

Waxing Gibbous 77%

13:24

01:30

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
19 Bad
20 OK
21 OK
22 OK
23 Good
00 OK

Sun - Rise: 07:45, Set: 15:57, Transit: 11:51. Moon - Rise: 13:24, Set: 01:30. Civil Dark: 16:36 - 07:06. Nautical Dark: 17:18 - 06:24. Astro Dark: 17:58 - 05:44

Total Clouds (% Sky Obscured)

95
90
85
86
77
78
77
80
84
90
97
84
70
53
51
55
53
45
37
24
16
9
1
26

Low Clouds (% Sky Obscured)

83
85
74
63
50
51
56
60
70
80
87
79
70
53
51
55
52
36
21
6
4
2
0
0

Medium Clouds (% Sky Obscured)

32
29
29
30
20
5
4
0
0
0
0
4
31
29
31
29
19
6
1
1
1
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
8
15
14
9
1
26

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

Precipitation Probability (%)

40
45
51
50
44
50
45
40
51
52
56
51
38
27
22
13
4
11
7
1
9
4
2
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
10
10
10
11
11
11
12
12
12
13
14
14
13
12
11
11
11
9
8
7
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
91
91
93
89
88
85
83
82
81
82
84
85
88
90
91
91
93
93
93
91
91

Pressure (mb)

1007
1008
1008
1008
1009
1009
1009
1010
1010
1011
1011
1011
1012
1012
1012
1013
1013
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

342
342
342
341
339
337
337
336
336
338
341
343
339
336
332
327
322
317
314
311
308
305
302
299

Monday 1

Waxing Gibbous 86%

13:38

02:55

Sun - Rise: 07:47, Set: 15:57, Transit: 11:52. Moon - Rise: 13:38, Set: 02:55. Civil Dark: 16:36 - 07:08. Nautical Dark: 17:18 - 06:25. Astro Dark: 17:58 - 05:45

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Bray Court, Windsor and Maidenhead, United Kingdom (51.50,-0.70)

Generated: 25/11/25 01:18:52. Forecast: 25/11/25 to 01/12/25. Timezone: UTC+0.00