Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 25

Waxing Crescent 34%

12:46

20:39

19 OK
20 OK
21 Good
22 OK
23 OK
00 Bad
01 Good
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: 07:53, Set: 16:25, Transit: 12:09. Moon - Rise: 12:46, Set: 20:39. Civil Dark: 17:02 - 07:16. Nautical Dark: 17:43 - 06:36. Astro Dark: 18:22 - 05:57

Total Clouds (% Sky Obscured)

22
20
11
31
34
78
7
73
100
56
90
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

22
20
11
31
23
7
2
25
10
9
23
41
97
89
94
88
90
88
89
97
100
93
94
86

Medium Clouds (% Sky Obscured)

22
20
11
23
9
50
2
3
7
29
69
97
100
100
100
100
100
100
100
96
100
88
74
69

High Clouds (% Sky Obscured)

22
20
11
0
34
78
7
73
100
56
83
100
100
100
100
99
8
70
88
99
49
93
100
83

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
8
25
49
70
95
95
95
95
95
83
72
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.8
1.4
1.5
1.5
1.1
0.4
0.5
0

Wind Speed/Direction (mph)

14
13
11
8
7
5
4
4
5
6
8
9
11
14
17
19
20
20
21
20
20
21
20
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
2
2
3
3
3
3
3
4
4
4
4
5
6
8
9
10
10
10
11
11
12
12
12

Relative Humidity (%)

67
68
66
67
65
67
68
69
72
72
72
70
73
77
84
88
91
93
93
95
95
96
96
96

Pressure (mb)

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

Ozone (du)

281
279
280
276
273
272
271
269
268
266
265
265
265
265
266
265
265
264
264
262
262
262
263
263

Wednesday 26

Waxing Crescent 45%

13:03

21:55

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: 07:54, Set: 16:25, Transit: 12:10. Moon - Rise: 13:03, Set: 21:55. Civil Dark: 17:02 - 07:17. Nautical Dark: 17:42 - 06:37. Astro Dark: 18:21 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
96
100
100
100
100
100
100
100
100
95
100
100
99
98
93
95
87
94
99
94
88

Low Clouds (% Sky Obscured)

64
51
59
73
94
91
95
91
98
95
91
80
69
49
42
49
67
78
88
86
87
89
83
31

Medium Clouds (% Sky Obscured)

47
44
44
19
33
68
71
72
71
95
95
96
90
92
91
75
92
63
83
1
21
87
32
27

High Clouds (% Sky Obscured)

100
100
100
89
100
95
100
100
79
100
100
100
69
98
97
87
81
72
68
68
57
42
11
19

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
7
9
9
9
6
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
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain
None

Precipitation Probability (%)

10
3
0
0
1
0
6
19
24
13
16
6
13
38
40
27
48
54
48
36
29
39
43
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

17
16
16
15
15
15
16
17
17
17
17
17
18
20
20
21
22
23
22
20
20
19
18
17

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Feels Like (°C)

9
9
9
9
9
9
9
8
9
9
9
10
9
8
8
8
8
8
8
9
9
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
92
89
87
86
79
83
87
92
93
92
93
95
95
95
96
96
95
95
95
93
90

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

261
260
260
260
258
257
257
258
258
258
257
259
259
258
255
252
250
248
250
251
251
253
254
254

Thursday 27

Waxing Crescent 55%

13:18

23:13

19 OK
20 Bad
21 Bad
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
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: 07:56, Set: 16:24, Transit: 12:10. Moon - Rise: 13:18, Set: 23:13. Civil Dark: 17:01 - 07:19. Nautical Dark: 17:42 - 06:38. Astro Dark: 18:21 - 05:59

Total Clouds (% Sky Obscured)

23
59
87
23
38
72
78
98
100
100
18
18
86
58
80
92
100
88
55
62
60
55
47
54

Low Clouds (% Sky Obscured)

3
59
44
14
34
53
12
63
54
68
18
11
4
26
55
51
80
70
55
52
44
38
33
38

Medium Clouds (% Sky Obscured)

4
2
2
1
3
21
50
67
70
100
2
10
53
23
34
44
60
40
25
0
2
1
2
15

High Clouds (% Sky Obscured)

23
59
87
23
38
60
61
49
59
88
18
18
9
0
0
0
0
0
2
50
55
55
47
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
9
9
8
8
9
8
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
2
5
4
16
36
21
18
33
40
58
88
60
56
55
42
30
13
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
13
15
15
15
15
14
15
16
16
18
19
19
20
23
24
25
26
25
25
24
23
22
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
86
83
79
80
80
81
80
81
81
79
80
80
81
81
83
76
69
68
68
68
71

Pressure (mb)

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

Ozone (du)

255
258
261
262
265
269
266
265
267
268
271
274
277
280
281
281
281
284
287
289
289
290
290
292

Friday 28

First Quarter 52%

13:31

00:30

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 Bad
18 Bad

Sun - Rise: 07:57, Set: 16:23, Transit: 12:10. Moon - Rise: 13:31, Set: 00:30. Civil Dark: 17:00 - 07:20. Nautical Dark: 17:41 - 06:39. Astro Dark: 18:20 - 06:00

Total Clouds (% Sky Obscured)

61
70
79
88
97
98
99
100
98
100
100
98
78
77
80
97
95
97
94
91
76
64
67
68

Low Clouds (% Sky Obscured)

43
48
61
67
75
69
66
55
72
88
100
98
76
75
76
78
95
72
71
67
55
43
36
27

Medium Clouds (% Sky Obscured)

25
34
34
34
40
70
29
100
30
25
24
26
29
29
41
91
57
97
94
90
59
50
55
60

High Clouds (% Sky Obscured)

55
50
59
74
89
56
61
36
30
38
65
70
60
60
37
22
11
7
3
0
16
32
48
32

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

13
16
27
43
66
61
95
53
45
70
95
95
95
95
95
95
95
95
95
95
95
78
57
43

Precipitation Amount (mm)

0
0
0
0
0.3
0
1.1
0
0
0.3
0.8
1.3
1.8
2.3
2.6
2.9
4.1
1.5
1
0.5
0.8
0.4
0.2
0

Wind Speed/Direction (mph)

21
22
23
23
23
24
23
20
19
17
16
15
11
9
11
12
18
25
27
29
30
30
29
29

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
73
76
81
84
88
90
84
81
77
68
68
65
64
67
74
74
69
70
70
70
69
67
67

Pressure (mb)

1012
1011
1011
1010
1009
1008
1007
1006
1007
1006
1006
1005
1005
1004
1004
1003
1003
1002
1002
1002
1003
1003
1004
1005

Ozone (du)

294
296
297
300
304
307
310
309
315
326
335
338
343
348
350
348
346
347
345
346
346
346
343
341

Saturday 29

Waxing Gibbous 66%

13:45

01:50

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: 07:59, Set: 16:23, Transit: 12:11. Moon - Rise: 13:45, Set: 01:50. Civil Dark: 17:00 - 07:21. Nautical Dark: 17:41 - 06:40. Astro Dark: 18:20 - 06:01

Total Clouds (% Sky Obscured)

98
99
78
54
42
42
47
53
50
46
44
59
81
98
97
96
100
94
86
76
84
93
100
100

Low Clouds (% Sky Obscured)

18
12
16
29
42
42
47
53
50
46
44
34
46
59
60
64
68
74
80
76
84
88
84
77

Medium Clouds (% Sky Obscured)

97
97
63
20
0
0
0
0
0
0
0
17
32
46
44
41
39
34
24
15
15
10
15
26

High Clouds (% Sky Obscured)

19
0
0
0
0
0
0
0
0
0
0
12
43
65
71
67
56
46
36
26
31
34
37
52

ISS Passover

Visibility (miles)

9
5
6
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

41
44
36
27
15
19
17
10
16
14
14
3
3
1
9
16
22
39
55
72
67
58
41
26

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
0.3
0.3
0
0

Wind Speed/Direction (mph)

27
26
25
25
25
25
25
24
23
22
22
21
15
13
12
11
11
12
11
11
10
10
10
10

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
73
73
69
67
68
64
63
63
63
63
64
63
62
63
63
64
67
68
69
72
73
74
74

Pressure (mb)

1005
1006
1007
1007
1008
1009
1010
1010
1011
1011
1012
1012
1011
1011
1011
1011
1011
1010
1010
1009
1008
1008
1008
1007

Ozone (du)

337
335
335
335
337
340
343
345
345
338
332
328
326
323
321
318
316
313
311
309
307
304
300
296

Sunday 30

Waxing Gibbous 77%

14:01

03:13

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: 08:00, Set: 16:22, Transit: 12:11. Moon - Rise: 14:01, Set: 03:13. Civil Dark: 17:00 - 07:22. Nautical Dark: 17:40 - 06:42. Astro Dark: 18:19 - 06:02

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
84
75
75
75
76
79
86
86
94

Low Clouds (% Sky Obscured)

71
61
56
58
58
63
66
71
75
81
88
87
87
86
81
80
75
75
75
76
76
76
69
60

Medium Clouds (% Sky Obscured)

40
53
69
86
100
94
87
81
80
83
86
88
87
87
83
79
65
52
37
25
30
35
40
50

High Clouds (% Sky Obscured)

74
100
100
100
100
100
100
100
100
100
100
100
100
100
82
63
45
30
30
30
30
30
45
65

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

17
3
6
7
6
30
49
67
94
95
95
95
81
67
51
40
30
25
28
42
60
74
77
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.7
0.9
1
0.6
0.4
0.3
0
0
0
0
0
0
0.2
0.4
0.4
0.3

Wind Speed/Direction (mph)

8
9
11
11
11
12
13
16
18
20
22
24
23
22
22
22
23
23
24
25
26
27
27
28

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
73
73
74
74
76
81
85
90
91
93
95
95
95
95
92
89
84
87
90
95
95
95
95

Pressure (mb)

1007
1007
1007
1007
1007
1006
1005
1005
1004
1003
1002
1001
1000
1000
1000
1000
1000
1000
999
999
999
998
998
998

Ozone (du)

294
291
289
286
282
279
276
273
270
268
266
264
265
266
266
267
268
269
268
267
266
265
264
263

Monday 1

Waxing Gibbous 86%

14:20

04:41

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

Sun - Rise: 08:01, Set: 16:22, Transit: 12:11. Moon - Rise: 14:20, Set: 04:41. Civil Dark: 16:59 - 07:24. Nautical Dark: 17:40 - 06:43. Astro Dark: 18:19 - 06:04

Total Clouds (% Sky Obscured)

95
96
96
94
91
66
40
14
32
49
64
59
54
50
62
76
92

Low Clouds (% Sky Obscured)

57
54
50
55
55
51
40
14
30
29
27
36
43
50
57
66
73

Medium Clouds (% Sky Obscured)

56
65
64
60
57
42
25
9
17
26
35
33
30
27
25
24
23

High Clouds (% Sky Obscured)

65
65
54
35
24
9
4
1
4
8
17
25
20
8
16
24
30

ISS Passover

Visibility (miles)

5
4
3
5
7
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

Precipitation Type

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

Precipitation Probability (%)

58
57
77
83
81
59
39
23
26
27
35
44
48
56
57
55
52

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

29
31
32
32
31
31
32
32
33
34
36
38
35
35
35
34
32

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
93
89
83
79
77
77
77
77
80
80
80
81
81
80
77

Pressure (mb)

998
997
997
997
997
997
997
998
998
998
998
998
998
999
999
1000
1001

Ozone (du)

264
265
267
272
277
282
288
294
300
303
306
309
311
313
315
316
317

Forecast for Penzance, Cornwall, United Kingdom (50.12,-5.54)

Generated: 25/11/25 19:10:43. Forecast: 25/11/25 to 01/12/25. Timezone: UTC+0.00