Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 12

Waning Crescent 26%

03:40

11:22

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 08:00, Set: 16:22, Transit: 12:11. Moon - Rise: 03:40, Set: 11:22. Civil Dark: 17:00 - 07:22. Nautical Dark: 17:41 - 06:40. Astro Dark: 18:21 - 06:01

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
99
100
100
100
90
91
92
98
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
55
69
59
70
79
66
66
77
80
73
75
79
62
38
68
78
75
75
83
74
98
90
99

Medium Clouds (% Sky Obscured)

99
100
100
100
30
54
13
40
48
24
36
53
24
22
0
0
1
82
100
100
100
100
100
100

High Clouds (% Sky Obscured)

99
100
100
100
100
100
87
66
47
43
0
2
14
48
100
100
100
100
100
100
100
91
77
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
4
1

Fog (%)

0
0
0
0
0
0
0
0
0
0
14
0
0
2
0
1
0
0
0
0
0
0
0
0

Precipitation Type

None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

45
95
35
7
2
5
0
0
1
5
8
15
24
18
6
1
4
7
1
1
24
90
95
95

Precipitation Amount (mm)

0
1.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
1.3
1.3

Wind Speed/Direction (mph)

12
13
16
15
15
16
14
14
12
12
12
11
10
10
10
9
8
7
7
7
7
7
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
5
5
6
6
6
5
6
6
6
6
7
7
6
7
7
7
7
6
6
6
7
7

Dew Point (°C)

9
9
9
9
9
9
9
9
8
8
9
9
9
9
9
9
8
9
9
9
9
9
9
9

Relative Humidity (%)

93
93
91
88
90
90
91
90
91
93
95
95
95
95
96
95
93
98
98
96
98
98
98
98

Pressure (mb)

1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005
1005

Ozone (du)

317
318
318
316
317
319
320
321
325
328
332
334
333
330
328
328
330
329
329
328
326
326
326
327

Tuesday 13

Waning Crescent 18%

04:51

11:42

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:59, Set: 16:23, Transit: 12:11. Moon - Rise: 04:51, Set: 11:42. Civil Dark: 17:01 - 07:21. Nautical Dark: 17:42 - 06:40. Astro Dark: 18:22 - 06:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
89
74
91
86
90
100
92
94

Low Clouds (% Sky Obscured)

87
85
67
75
78
78
81
85
81
70
72
70
63
64
61
84
80
65
82
76
78
95
89
89

Medium Clouds (% Sky Obscured)

100
97
100
100
99
98
100
98
100
100
95
100
100
79
97
68
39
31
31
18
22
30
19
21

High Clouds (% Sky Obscured)

89
93
92
85
100
100
100
100
100
100
100
81
29
98
76
19
0
0
30
0
0
0
0
0

ISS Passover

Visibility (miles)

3
9
9
9
9
4
6
9
9
5
3
4
6
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
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very 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
Very Light Rain

Precipitation Probability (%)

95
83
61
62
70
71
71
71
84
95
95
80
60
41
39
9
7
8
23
17
17
25
38
37

Precipitation Amount (mm)

0.9
0.6
0.3
0.3
0.4
0.4
0.3
0.4
0.4
0.6
0.6
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

11
13
15
15
15
14
13
13
14
15
10
10
11
12
12
10
9
7
6
6
6
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
93
91
91
95
96
96
96
96
95
93
91
88
87
85
85
90
90
91
88
88
87
85

Pressure (mb)

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

Ozone (du)

329
332
334
335
333
331
331
331
331
329
330
333
337
335
341
345
347
343
346
348
348
345
341
335

Wednesday 14

Waning Crescent 17%

05:58

12:09

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:58, Set: 16:25, Transit: 12:12. Moon - Rise: 05:58, Set: 12:09. Civil Dark: 17:03 - 07:20. Nautical Dark: 17:44 - 06:39. Astro Dark: 18:23 - 06:00

Total Clouds (% Sky Obscured)

94
96
53
62
86
90
100
100
100
62
100
100
95
87
93
95
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

90
89
53
62
86
90
92
81
53
0
3
28
57
73
86
85
85
85
80
77
74
78
81
83

Medium Clouds (% Sky Obscured)

16
25
1
0
1
3
5
89
92
62
100
100
95
87
87
95
61
100
100
97
100
100
94
98

High Clouds (% Sky Obscured)

0
0
0
1
1
14
99
100
100
52
70
100
13
10
7
38
67
100
96
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
5
9
4
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 (%)

25
9
5
2
4
2
0
0
0
0
0
0
8
9
21
20
26
41
49
55
33
41
34
43

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)

3
2
3
4
6
7
7
7
6
6
6
6
6
8
8
10
12
13
14
14
14
14
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
9
8
9
8
6
5
4
3
3
2
1
1
1
1
1
2
2
2
3
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

84
77
70
67
66
68
77
82
85
85
83
83
83
83
86
85
82
85
88
94
96
95
95
95

Pressure (mb)

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

Ozone (du)

332
327
325
320
315
312
310
313
318
323
324
323
323
324
326
328
333
334
339
348
352
352
354
357

Thursday 15

Waning Crescent 11%

06:55

12:47

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
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:57, Set: 16:26, Transit: 12:12. Moon - Rise: 06:55, Set: 12:47. Civil Dark: 17:04 - 07:20. Nautical Dark: 17:45 - 06:39. Astro Dark: 18:24 - 05:59

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
98
97
56
57
88
49
37
20
29
35
44

Low Clouds (% Sky Obscured)

91
96
100
100
100
100
100
100
100
83
63
35
51
53
55
23
17
10
14
19
20
29
35
44

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
99
97
94
36
52
40
53
63
70
56
50
82
38
21
1
2
2
2

High Clouds (% Sky Obscured)

100
100
100
100
100
100
86
91
100
100
100
100
71
43
30
0
0
0
0
0
0
5
11
17

ISS Passover

Visibility (miles)

9
9
3
3
2
2
9
4
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
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
90
36
16
15
2
2
7
6
9
14
15
15
16
19

Precipitation Amount (mm)

0.8
1.5
2.4
2.3
2.7
1.8
1.9
2.2
2.3
1.3
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
13
14
14
18
16
15
14
14
16
17
19
16
13
12
11
8
7
6
5
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
95
96
98
96
93
95
95
91
91
88
90
91
83
80
86
93
91
91
93
91
93
93

Pressure (mb)

1005
1004
1004
1003
1001
1000
999
998
997
996
997
998
999
1000
1001
1002
1003
1004
1004
1005
1005
1005
1005
1006

Ozone (du)

359
358
358
361
362
365
372
377
378
379
375
372
367
367
364
362
365
370
379
386
395
398
401
404

Friday 16

Waning Crescent 6%

07:41

13:37

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:56, Set: 16:28, Transit: 12:13. Moon - Rise: 07:41, Set: 13:37. Civil Dark: 17:05 - 07:19. Nautical Dark: 17:46 - 06:38. Astro Dark: 18:26 - 05:59

Total Clouds (% Sky Obscured)

54
48
75
53
52
38
63
68
67
95
90
86
79
74
69
68
66
65
62
63
63
67
72
77

Low Clouds (% Sky Obscured)

51
45
39
43
47
38
48
45
42
20
28
36
43
46
46
43
36
34
36
41
44
56
68
77

Medium Clouds (% Sky Obscured)

20
14
52
12
4
3
38
40
30
94
90
86
75
58
42
46
48
48
47
47
48
56
68
77

High Clouds (% Sky Obscured)

18
20
22
14
8
0
8
17
24
2
2
3
3
6
6
7
5
4
7
12
24
20
12
3

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

18
24
27
26
27
25
44
40
42
59
63
62
58
55
51
43
33
19
19
21
25
27
27
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
10
12
14
14
13
13
12
10
9
6
6
5
5
5
4
4
4
3
4
4
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
88
88
87
87
87
90
91
91
90
90
90
91
93
93
93
94
96
96
96
94
94
93

Pressure (mb)

1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1005
1005
1006
1006
1006
1006
1007
1007
1007
1007
1007
1008
1008
1008

Ozone (du)

410
411
412
409
400
396
398
399
400
401
404
406
408
414
420
425
429
433
436
440
443
446
445
445

Saturday 17

Waning Crescent 2%

08:15

14:40

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:55, Set: 16:29, Transit: 12:13. Moon - Rise: 08:15, Set: 14:40. Civil Dark: 17:07 - 07:18. Nautical Dark: 17:48 - 06:37. Astro Dark: 18:27 - 05:58

Total Clouds (% Sky Obscured)

78
77
77
75
71
69
64
61
63
67
71
78
76
73
64
73
84
95
93
90
88
88
87
88

Low Clouds (% Sky Obscured)

78
77
77
75
71
69
64
61
63
64
57
51
41
34
26
36
50
56
59
62
64
71
76
82

Medium Clouds (% Sky Obscured)

75
70
62
40
21
4
4
3
3
4
6
11
29
50
64
73
80
86
81
81
80
80
80
80

High Clouds (% Sky Obscured)

3
1
1
0
0
0
0
0
0
0
0
0
8
17
23
20
29
30
20
18
11
10
8
3

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

29
28
27
27
26
25
28
30
30
24
20
15
20
24
27
30
33
37
39
42
50
44
36
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
91
90
87
88
88
90
90
91
91
88
85
82
85
88
91
91
93
94
94
96
96
93
91

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009

Ozone (du)

444
446
447
449
444
438
433
436
438
440
437
434
431
432
433
434
442
450
459
458
457
457
458
458

Sunday 18

New Moon 0%

08:40

15:53

Sun - Rise: 07:54, Set: 16:31, Transit: 12:13. Moon - Rise: 08:40, Set: 15:53. Civil Dark: 17:08 - 07:17. Nautical Dark: 17:49 - 06:36. Astro Dark: 18:28 - 05:57

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

Generated: 12/01/26 08:10:56. Forecast: 12/01/26 to 18/01/26. Timezone: UTC+0.00