Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 3%

07:03

14:10

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
19 Bad
20 Bad

Sun - Rise: 08:01, Set: 15:58, Transit: 12:00. Moon - Rise: 07:03, Set: 14:10. Civil Dark: 16:37 - 07:22. Nautical Dark: 17:20 - 06:39. Astro Dark: 18:00 - 05:59

Total Clouds (% Sky Obscured)

93
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

88
94
93
92
100
100
100
100
94
100
93
93
91
90
84
84
86
89
85
74
79
66
72
89

Medium Clouds (% Sky Obscured)

93
75
100
99
100
48
70
97
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

89
94
100
100
100
100
100
100
100
100
93
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
7
7
4
3
9
9
9
9
9
9
5
2
2
5
6
3
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
None
None
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
Light Rain

Precipitation Probability (%)

0
0
95
95
95
95
69
74
29
43
95
95
95
95
95
95
95
95
95
84
45
27
29
81

Precipitation Amount (mm)

0
0
1.9
0.8
1.8
0.9
0.2
0.4
0
0
0.5
2.4
2.9
3.8
1.5
0.9
1.3
1.1
0.6
0.6
0
0
0
0.4

Wind Speed/Direction (mph)

19
18
21
19
20
20
19
17
16
17
16
15
16
17
20
25
27
29
28
25
18
16
15
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
90
90
95
95
95
96
96
96
95
95
96
98
96
98
95
90
87
84
87
91
83
90
88

Pressure (mb)

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

Ozone (du)

307
312
313
314
309
310
311
302
298
298
293
288
283
281
278
285
288
288
289
284
286
284
294
310

Thursday 18

Waning Crescent 1%

08:07

14:52

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 OK
14 OK
15 OK
16 Bad
17 Bad
18 Bad
19 OK
20 OK

Sun - Rise: 08:02, Set: 15:58, Transit: 12:00. Moon - Rise: 08:07, Set: 14:52. Civil Dark: 16:38 - 07:22. Nautical Dark: 17:20 - 06:40. Astro Dark: 18:00 - 06:00

Total Clouds (% Sky Obscured)

100
100
100
97
100
100
100
100
100
100
100
100
100
100
95
81
10
10
7
36
39
34
30
12

Low Clouds (% Sky Obscured)

72
61
56
30
30
0
0
6
12
5
26
7
21
15
25
34
10
10
7
36
39
34
30
12

Medium Clouds (% Sky Obscured)

100
100
82
88
95
100
79
81
100
100
100
71
53
32
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
92
100
84
100
86
97
100
100
100
89
80
80
48
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
7
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

Light Rain
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 (%)

95
62
37
9
2
0
0
0
0
0
0
0
1
3
13
2
4
4
12
14
10
15
4
6

Precipitation Amount (mm)

0.9
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)

18
13
12
11
11
8
7
8
8
8
8
7
7
9
10
11
12
11
9
7
6
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
88
88
90
87
85
90
87
85
82
81
82
82
82
80
78
78
78
81
88
91
91
91
93

Pressure (mb)

1006
1007
1008
1009
1010
1011
1012
1013
1014
1014
1015
1016
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

317
327
334
332
332
337
338
333
339
352
360
364
372
374
368
362
362
347
321
312
308
304
300
297

Friday 19

Waning Crescent 0%

09:00

15:46

21 Bad
22 OK
23 OK
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
19 Bad
20 Bad

Sun - Rise: 08:02, Set: 15:59, Transit: 12:01. Moon - Rise: 09:00, Set: 15:46. Civil Dark: 16:38 - 07:23. Nautical Dark: 17:21 - 06:40. Astro Dark: 18:01 - 06:00

Total Clouds (% Sky Obscured)

26
0
11
37
44
52
71
66
54
61
69
60
46
49
57
63
54
55
75
75
78
79
84
88

Low Clouds (% Sky Obscured)

26
0
11
37
44
52
71
66
54
61
69
60
46
47
57
55
54
51
75
65
69
64
51
47

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
6
3
5
7
6
2
3
6
54

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
25
45
60

ISS Passover

Visibility (miles)

9
9
9
9
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

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

Precipitation Probability (%)

24
24
23
38
36
21
10
6
6
4
3
2
3
3
2
2
1
3
9
17
14
13
18
16

Precipitation Amount (mm)

0
0
0
0
0.2
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
3
4
5
6
7
7
7
7
7
6
7
8
10
10
10
9
6
7
8
7
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
93
91
91
93
93
93
93
93
90
90
90
82
78
75
75
75
84
91
88
84
82
86

Pressure (mb)

1018
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1014
1013
1013
1012
1011
1011
1010
1009
1009
1009
1008
1008
1008

Ozone (du)

291
290
292
296
300
300
298
293
291
290
290
290
291
293
297
302
305
310
311
312
312
312
313
313

Saturday 20

New Moon 2%

09:41

16:52

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
19 Bad
20 Bad

Sun - Rise: 08:03, Set: 15:59, Transit: 12:01. Moon - Rise: 09:41, Set: 16:52. Civil Dark: 16:39 - 07:23. Nautical Dark: 17:21 - 06:41. Astro Dark: 18:01 - 06:01

Total Clouds (% Sky Obscured)

85
83
84
88
93
97
97
97
98
94
91
87
91
96
100
100
100
99
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

48
44
40
44
45
44
54
63
83
81
64
80
79
81
79
75
72
47
45
59
86
78
84
68

Medium Clouds (% Sky Obscured)

77
78
77
47
54
66
55
71
72
61
52
60
74
81
89
90
68
57
63
70
76
98
96
94

High Clouds (% Sky Obscured)

59
58
57
63
67
72
64
57
49
35
22
13
45
70
98
69
39
10
43
72
100
86
70
56

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

17
12
5
5
5
2
12
15
16
18
26
36
39
44
37
38
27
19
18
26
25
31
28
22

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
94
94
94
96
96
96
98
98
98
98
98
96
96
96
96
95
93
95
95
95
93
91

Pressure (mb)

1008
1008
1007
1007
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007

Ozone (du)

316
315
319
318
318
320
322
317
315
321
325
326
329
333
339
356
368
372
372
375
376
378
380
380

Sunday 21

Waxing Crescent 6%

10:12

18:06

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
19 Bad
20 Bad

Sun - Rise: 08:03, Set: 16:00, Transit: 12:02. Moon - Rise: 10:12, Set: 18:06. Civil Dark: 16:39 - 07:24. Nautical Dark: 17:22 - 06:41. Astro Dark: 18:02 - 06:01

Total Clouds (% Sky Obscured)

97
96
95
96
97
99
98
97
97
92
57
50
52
74
63
68
70
71
80
92
100
100
100
100

Low Clouds (% Sky Obscured)

74
63
59
60
60
58
54
51
48
45
42
39
38
36
35
42
48
55
58
61
64
71
78
85

Medium Clouds (% Sky Obscured)

88
81
74
78
88
96
76
90
93
30
21
13
17
19
24
23
18
30
46
55
64
58
53
48

High Clouds (% Sky Obscured)

56
56
56
54
55
55
56
48
41
39
38
34
30
34
27
29
36
44
61
78
94
85
74
67

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 (%)

21
17
7
14
15
9
10
8
5
6
4
0
0
0
0
0
0
0
4
5
3
8
9
8

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

Chance of Frost

Temperature (°C)

9
9
9
9
9
8
8
8
8
8
8
7
7
7
8
9
9
8
8
8
7
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
90
91
91
91
91
90
88
87
87
88
90
87
82
80
84
85
88
90
91
93
93
96

Pressure (mb)

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

Ozone (du)

383
384
385
388
389
390
394
397
403
412
416
419
422
420
419
416
414
412
411
410
409
409
407
406

Monday 22

Waxing Crescent 12%

10:35

19:23

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
19 Bad
20 Bad

Sun - Rise: 08:04, Set: 16:00, Transit: 12:02. Moon - Rise: 10:35, Set: 19:23. Civil Dark: 16:40 - 07:24. Nautical Dark: 17:22 - 06:42. Astro Dark: 18:02 - 06:02

Total Clouds (% Sky Obscured)

100
100
100
96
92
88
92
96
100
100
100
100
100
100
100
99
98
97
95
93
90
86
84
84

Low Clouds (% Sky Obscured)

86
88
89
88
88
87
91
95
100
100
100
100
100
100
100
98
96
94
89
85
81
82
84
84

Medium Clouds (% Sky Obscured)

62
74
85
78
61
56
65
73
93
98
98
99
95
90
86
89
88
45
44
33
41
34
40
51

High Clouds (% Sky Obscured)

78
87
91
76
56
32
51
73
98
72
46
20
22
24
29
25
21
12
13
15
21
15
13
11

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
6
5
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
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

21
28
30
35
40
40
55
70
78
78
79
78
71
56
33
35
31
24
21
19
12
14
14
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.5
0.5
0.5
0.6
0.4
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
13
13
12
12
12
12
13
13
13
12
13
13
14
14
14
15
15
14
13
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
94
96
94
94
93
91
90
90
88
86
85
87
85
85
85
85
85
87
86
88
88
90

Pressure (mb)

1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1015

Ozone (du)

404
402
401
399
397
395
393
394
395
396
396
397
398
400
402
405
406
407
409
410
412
413
412
412

Tuesday 23

Waxing Crescent 19%

10:52

20:40

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

Sun - Rise: 08:04, Set: 16:01, Transit: 12:03. Moon - Rise: 10:52, Set: 20:40. Civil Dark: 16:40 - 07:25. Nautical Dark: 17:23 - 06:42. Astro Dark: 18:03 - 06:02

Total Clouds (% Sky Obscured)

82
81
81
73
68
60
62
62
61
63
66
74
79
86
88
89
87
84
86
86
88

Low Clouds (% Sky Obscured)

82
81
81
73
68
60
62
62
61
63
66
69
64
65
72
76
75
77
80
80
80

Medium Clouds (% Sky Obscured)

48
34
21
27
30
36
36
32
30
21
13
4
5
6
7
6
6
4
4
3
3

High Clouds (% Sky Obscured)

15
16
17
13
17
13
11
13
13
14
16
19
17
12
7
4
4
2
2
1
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

Fog (%)

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

Precipitation Probability (%)

13
12
7
10
11
10
15
17
18
23
25
25
29
31
32
35
34
30
31
29
25

Precipitation Amount (mm)

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
11
11
11
11
11
12
12
12
12
12
12
12
13
14
15
15
15
15
14
13

Chance of Frost

Temperature (°C)

5
5
5
4
4
4
3
3
3
3
3
4
5
5
5
5
5
5
5
5
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
89
91
91
91
91
93
91
91
91
89
89
88
89
89
89
91
91
93
94

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1017
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

411
408
405
403
399
395
392
390
388
385
385
385
385
388
390
392
393
394
394
394
394

Forecast for Chichester, West Sussex, United Kingdom (50.84,-0.77)

Generated: 17/12/25 20:22:57. Forecast: 17/12/25 to 23/12/25. Timezone: UTC+0.00