Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 3%

07:05

14:02

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: 08:02, Set: 15:51, Transit: 11:57. Moon - Rise: 07:05, Set: 14:02. Civil Dark: 16:31 - 07:22. Nautical Dark: 17:15 - 06:39. Astro Dark: 17:56 - 05:58

Total Clouds (% Sky Obscured)

90
93
94
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92

Low Clouds (% Sky Obscured)

82
93
94
96
77
92
100
87
85
92
89
91
89
95
95
88
87
67
54
73
84
71
65
60

Medium Clouds (% Sky Obscured)

90
92
82
87
99
100
100
100
100
100
100
100
100
100
100
100
100
98
100
98
98
94
88
79

High Clouds (% Sky Obscured)

90
93
94
96
100
100
100
100
100
100
100
100
91
100
100
100
100
100
100
100
100
87
100
77

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
8
3
2
2
2
2
5
5
9
9
9
9
9
5
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
None
None
None
None
None
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

95
95
95
42
12
6
15
34
95
95
95
95
95
95
95
87
40
9
3
19
61
55
21
2

Precipitation Amount (mm)

1.2
1.9
0.5
0
0
0
0
0
0.7
2.4
3.5
3
2.5
1.3
1.3
0.6
0
0
0
0
0.2
0.2
0
0

Wind Speed/Direction (mph)

16
16
16
14
13
12
12
13
12
12
14
16
19
22
25
23
24
16
14
15
16
16
13
11

Chance of Frost

Temperature (°C)

10
10
10
10
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
91
93
95
91
91
91
95
95
95
95
93
91
84
83
85
84
83
83
87
90
84
84

Pressure (mb)

1008
1008
1007
1008
1007
1007
1007
1007
1007
1006
1005
1003
1002
1001
1001
1001
1002
1002
1003
1004
1004
1005
1006
1007

Ozone (du)

311
308
310
306
300
300
295
292
289
284
282
280
287
289
286
287
289
288
297
314
324
334
339
336

Friday 19

Waning Crescent 1%

08:10

14:43

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

Sun - Rise: 08:03, Set: 15:52, Transit: 11:57. Moon - Rise: 08:10, Set: 14:43. Civil Dark: 16:32 - 07:23. Nautical Dark: 17:15 - 06:39. Astro Dark: 17:56 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
97
100
100
100
100
99
86
7
12
20
24
39
0
1
12
28
29
25
20
23
38

Low Clouds (% Sky Obscured)

30
25
0
6
9
0
0
0
0
0
0
12
20
24
39
0
0
12
28
29
25
20
23
38

Medium Clouds (% Sky Obscured)

100
100
100
66
70
70
65
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

46
92
100
90
100
100
100
100
98
59
5
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
84
82
82
80
78
78
79
78
77
77
77
77
80
84
87
88
90
91
93
91
93
93

Pressure (mb)

1008
1010
1010
1011
1012
1013
1014
1014
1015
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1017

Ozone (du)

337
330
326
331
341
355
363
363
371
368
367
363
355
346
324
312
305
298
295
291
289
289
288
291

Saturday 20

New Moon 0%

09:03

15:37

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK
11 OK
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: 08:04, Set: 15:52, Transit: 11:58. Moon - Rise: 09:03, Set: 15:37. Civil Dark: 16:32 - 07:23. Nautical Dark: 17:16 - 06:40. Astro Dark: 17:57 - 05:59

Total Clouds (% Sky Obscured)

39
45
46
47
47
46
55
50
40
33
44
50
67
61
60
50
98
89
78
70
76
80
87
89

Low Clouds (% Sky Obscured)

39
45
46
47
47
46
55
50
40
33
44
50
48
61
47
22
52
51
54
53
58
62
53
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
8
6
19
16
20
15
33
22
11
3
5
7
34
16

High Clouds (% Sky Obscured)

2
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
14
21
27
40
53
59

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
1
2
0
0
0
0
0
0
0
0
1
1
2
1
0
1
3
2
4
0
10
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
2
2
2
2
2
2
2
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Relative Humidity (%)

93
93
94
94
94
96
96
94
94
89
83
81
79
77
81
86
91
91
91
91
93
94
94
96

Pressure (mb)

1017
1017
1016
1015
1015
1015
1014
1014
1014
1014
1013
1013
1012
1011
1011
1010
1010
1010
1010
1009
1009
1009
1009
1008

Ozone (du)

294
294
291
287
286
284
284
285
287
288
291
297
301
303
302
306
306
306
308
307
308
306
312
311

Sunday 21

Waxing Crescent 2%

09:44

16:44

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: 08:04, Set: 15:52, Transit: 11:58. Moon - Rise: 09:44, Set: 16:44. Civil Dark: 16:33 - 07:24. Nautical Dark: 17:16 - 06:40. Astro Dark: 17:57 - 05:59

Total Clouds (% Sky Obscured)

95
98
98
98
98
98
98
98
97
96
93
95
97
99
99
99
99
99
99
100
98
97
96
94

Low Clouds (% Sky Obscured)

73
82
83
82
82
84
87
91
88
87
85
83
81
79
80
83
76
76
95
100
94
88
82
73

Medium Clouds (% Sky Obscured)

32
40
51
67
81
72
60
47
74
86
84
56
89
96
92
86
83
87
90
93
91
88
84
71

High Clouds (% Sky Obscured)

67
74
53
31
14
17
16
30
27
32
27
45
60
74
71
69
70
57
36
22
27
41
50
44

ISS Passover

Visibility (miles)

9
9
9
9
9
1
0
0
7
1
0
0
0
4
9
9
9
9
9
9
9
9
4
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
1
1
3
5
20
16
10
26
21
22
34
6
17
11
4
12
24
33
27
43
39
19

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
6
6
7
7
7
7
7
6
7
8
8
8
8
8
8
8
8
8
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
96
96
96
98
100
98
98
98
98
98
98
98
96
96
96
95
95
95
98
96
98
96

Pressure (mb)

1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010
1010

Ozone (du)

312
309
310
310
309
312
318
322
324
326
328
328
335
348
356
358
358
361
362
363
364
362
363
368

Monday 22

Waxing Crescent 6%

10:14

17:59

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: 08:04, Set: 15:53, Transit: 11:59. Moon - Rise: 10:14, Set: 17:59. Civil Dark: 16:33 - 07:24. Nautical Dark: 17:17 - 06:41. Astro Dark: 17:58 - 06:00

Total Clouds (% Sky Obscured)

92
92
92
93
93
92
91
91
93
94
95
95
95
94
96
98
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

70
69
60
51
42
48
54
60
68
75
83
83
83
83
84
84
85
88
90
93
92
91
90
93

Medium Clouds (% Sky Obscured)

76
71
80
80
85
60
36
58
29
24
26
18
11
5
18
34
47
46
35
22
35
48
61
69

High Clouds (% Sky Obscured)

45
42
41
43
49
46
47
45
43
40
29
42
57
71
80
90
100
100
100
100
100
100
100
99

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 (%)

6
10
9
0
2
1
0
0
0
0
0
0
0
0
2
3
1
1
1
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
7
6
6
7
6
6
5
7
7
8
8
9
9
9
9
9
9
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
7
7
7
7
6
6
7
7
7
7
8
7
7
7
7
6
6
6
6
6

Relative Humidity (%)

95
93
95
95
95
95
93
93
90
90
87
85
88
90
93
95
95
98
96
96
94
94
93
94

Pressure (mb)

1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012

Ozone (du)

370
372
376
378
380
382
385
387
392
396
400
404
404
404
404
403
401
400
397
394
392
390
389
387

Tuesday 23

Waxing Crescent 12%

10:35

19:17

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: 08:05, Set: 15:54, Transit: 11:59. Moon - Rise: 10:35, Set: 19:17. Civil Dark: 16:34 - 07:25. Nautical Dark: 17:17 - 06:41. Astro Dark: 17:58 - 06:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
98
98
96
94
94
96
98
100
93
82
70
62
57
55
51

Low Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
99
98
97
95
93
91
94
97
100
86
72
58
55
53
50
46

Medium Clouds (% Sky Obscured)

77
84
88
92
97
85
84
78
75
80
72
70
63
47
38
29
25
25
25
30
29
24
55
51

High Clouds (% Sky Obscured)

98
98
99
100
100
88
74
60
41
25
7
6
10
18
14
19
20
25
30
30
35
40
45
47

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
2
3
3
6
6
4
12
15
16
17
17
18
15
14
10
12
12
12
15
16
17
22

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
11
12
12
11
11
11
11
12
11
11
11
11
11
11
11
12
12
11
11
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1012
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1017
1017

Ozone (du)

389
391
392
392
391
390
390
389
389
392
394
396
398
400
401
401
400
400
397
395
393
391
390
388

Wednesday 24

Waxing Crescent 19%

10:52

20:35

Sun - Rise: 08:05, Set: 15:54, Transit: 12:00. Moon - Rise: 10:52, Set: 20:35. Civil Dark: 16:35 - 07:25. Nautical Dark: 17:18 - 06:42. Astro Dark: 17:59 - 06:01

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 Enfield, Greater London, United Kingdom (51.65,-0.08)

Generated: 18/12/25 01:47:20. Forecast: 18/12/25 to 24/12/25. Timezone: UTC+0.00