Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 6%

10:07

17:56

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
19 Bad

Sun - Rise: 07:58, Set: 15:50, Transit: 11:54. Moon - Rise: 10:07, Set: 17:56. Civil Dark: 16:30 - 07:18. Nautical Dark: 17:13 - 06:35. Astro Dark: 17:54 - 05:55

Total Clouds (% Sky Obscured)

67
72
80
84
100
100
100
100
100
96
100
100
100
80
99
100
99
100
100
89
72
68
93
100

Low Clouds (% Sky Obscured)

66
53
34
28
44
15
26
27
23
31
42
49
55
65
61
62
55
59
61
52
40
47
85
74

Medium Clouds (% Sky Obscured)

67
72
80
84
100
97
100
100
86
22
25
85
100
80
81
64
33
27
34
34
28
22
25
82

High Clouds (% Sky Obscured)

49
72
80
84
100
100
100
100
100
92
100
100
100
42
97
100
76
100
33
27
25
29
33
98

ISS Passover

Visibility (miles)

9
9
9
4
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
81
59
29
5
18
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.2
0.9
0.4
0.4
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
13
10
8
10
9
9
9
9
9
8
6
6
6
6
6
7
5
4
4
3
3
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
91
81
85
90
90
88
88
87
88
87
88
87
85
83
80
80
83
87
90
90
91
91

Pressure (mb)

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

Ozone (du)

327
330
337
342
347
351
355
356
357
360
361
362
364
366
369
371
374
378
380
381
383
382
380
379

Monday 22

Waxing Crescent 12%

10:29

19:13

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
19 Bad

Sun - Rise: 07:58, Set: 15:51, Transit: 11:55. Moon - Rise: 10:29, Set: 19:13. Civil Dark: 16:31 - 07:19. Nautical Dark: 17:14 - 06:36. Astro Dark: 17:54 - 05:55

Total Clouds (% Sky Obscured)

100
93
88
89
94
97
92
93
90
88
94
91
98
100
96
92
98
95
91
92
88
83
86
94

Low Clouds (% Sky Obscured)

46
45
44
41
71
81
83
87
90
88
94
91
98
100
96
92
98
95
91
92
88
83
86
94

Medium Clouds (% Sky Obscured)

97
90
81
39
65
46
47
44
15
7
6
11
13
28
40
31
78
67
39
40
35
31
32
4

High Clouds (% Sky Obscured)

99
35
60
62
69
78
44
30
19
7
14
9
9
8
5
9
25
28
11
3
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
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
3
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)

5
5
5
5
6
6
7
7
8
9
9
10
11
11
12
13
14
14
15
15
15
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
88
88
87
87
87
88
88
90
90
90
88
86
82
79
78
79
80
80
83
83
83
85

Pressure (mb)

1011
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1014
1014
1015
1016
1016
1016
1016
1017
1017
1018
1019
1020
1021

Ozone (du)

379
376
375
372
369
368
366
362
357
353
353
354
352
350
350
352
352
352
353
355
354
354
354
354

Tuesday 23

Waxing Crescent 19%

10:46

No Set

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 OK
10 OK
11 OK
12 OK
13 Bad
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 07:59, Set: 15:52, Transit: 11:55. Moon - Rise: 10:46, Set: No Set. Civil Dark: 16:31 - 07:19. Nautical Dark: 17:14 - 06:36. Astro Dark: 17:55 - 05:55

Total Clouds (% Sky Obscured)

91
91
86
96
96
96
95
92
74
79
68
65
52
43
40
34
42
56
35
50
49
54
55
57

Low Clouds (% Sky Obscured)

91
91
86
96
96
96
95
92
74
79
68
65
52
43
40
34
42
56
35
50
49
54
55
57

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
2
1
1
1
0
1
0
2
2
2
4
0
0
0
0
0
0
2
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 (%)

5
6
5
6
12
13
13
7
1
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)

16
16
16
16
17
17
17
17
18
18
18
18
18
19
19
19
20
20
20
19
19
20
20
20

Chance of Frost

Temperature (°C)

6
6
6
6
6
6
6
5
5
5
5
5
5
4
5
5
5
5
5
4
4
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
83
85
85
85
83
83
82
80
72
70
70
71
72
71
70
68
67
67
66
67
64
62
60

Pressure (mb)

1021
1022
1023
1023
1024
1025
1025
1026
1026
1027
1027
1028
1029
1031
1031
1031
1031
1031
1031
1031
1032
1032
1032
1032

Ozone (du)

354
355
356
356
351
348
346
342
339
336
335
338
341
345
347
348
350
350
346
344
344
346
345
345

Wednesday 24

Waxing Crescent 28%

10:59

20:31

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 OK
14 OK
15 OK
16 OK
17 Good
18 Good
19 Good

Sun - Rise: 07:59, Set: 15:52, Transit: 11:56. Moon - Rise: 10:59, Set: 20:31. Civil Dark: 16:32 - 07:19. Nautical Dark: 17:15 - 06:36. Astro Dark: 17:55 - 05:56

Total Clouds (% Sky Obscured)

53
52
50
44
51
56
61
62
61
56
61
68
73
66
64
60
45
39
31
23
15
7
5
4

Low Clouds (% Sky Obscured)

53
52
50
44
51
56
61
62
61
56
61
68
73
66
64
60
45
39
31
23
15
7
5
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
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)

20
21
21
22
22
23
24
24
24
24
24
23
23
21
21
20
19
18
17
17
16
15
14
14

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
4
4
4
4
4
4
3
3
4
4
4
4
4
4
4
4
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
55
54
52
50
48
48
48
50
52
53
56
60
62
63
63
64
66
67
68
69
69
71
70

Pressure (mb)

1032
1032
1031
1031
1030
1030
1029
1029
1029
1028
1028
1028
1028
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

345
346
347
349
349
354
358
358
359
358
357
358
359
357
356
354
354
354
354
355
357
357
356
355

Thursday 25

Waxing Crescent 38%

11:12

21:49

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

Sun - Rise: 07:59, Set: 15:53, Transit: 11:56. Moon - Rise: 11:12, Set: 21:49. Civil Dark: 16:33 - 07:19. Nautical Dark: 17:16 - 06:37. Astro Dark: 17:56 - 05:56

Total Clouds (% Sky Obscured)

2
2
1
1
1
0
0
0
1
1
1
1
3
23
25
19
15
20
20
21
22
31
33
34

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
14
3
10
20
20
21
22
31
24
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
4
5
7
3
2
2
2
2
3
2
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
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)

13
12
11
10
10
10
10
10
10
10
10
10
10
9
11
12
14
14
14
14
14
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-0
0
0
-0
-1
-1
0
0
0
0
0
1
0
1
1
1
1
1
1
1
1
-1

Dew Point (°C)

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

Relative Humidity (%)

72
74
76
79
80
81
81
81
83
85
86
86
86
85
79
76
74
75
75
75
76
76
78
76

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031
1032
1032
1032
1032
1033
1033

Ozone (du)

355
355
354
352
352
352
352
351
350
350
350
350
351
354
357
357
356
356
356
356
356
355
355
353

Friday 26

Waxing Crescent 50%

11:23

23:07

20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
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

Sun - Rise: 07:59, Set: 15:54, Transit: 11:57. Moon - Rise: 11:23, Set: 23:07. Civil Dark: 16:33 - 07:20. Nautical Dark: 17:16 - 06:37. Astro Dark: 17:57 - 05:56

Total Clouds (% Sky Obscured)

41
34
25
16
18
21
23
32
43
55
55
69
78
81
83
86
88
91
93
88
91
90
86
86

Low Clouds (% Sky Obscured)

6
7
2
6
7
8
8
22
34
44
49
51
56
62
66
73
80
86
93
88
91
90
86
86

Medium Clouds (% Sky Obscured)

3
1
1
0
3
7
10
12
20
16
7
7
3
2
1
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
1
2
6
8
8
7
9

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
1
1
3
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
2
1
2
2
2
2
2
2
2
1
0
-1
-1
-0
1
3
4
4
5
5
6
5
6

Relative Humidity (%)

76
78
78
80
80
80
80
80
79
76
74
67
61
57
60
64
68
73
78
82
84
85
85
84

Pressure (mb)

1034
1034
1035
1035
1035
1036
1036
1036
1036
1036
1037
1037
1038
1038
1038
1039
1039
1039
1039
1039
1039
1039
1039
1039

Ozone (du)

352
350
349
349
348
346
344
342
339
336
333
331
328
325
323
321
318
315
312
308
307
307
306
306

Saturday 27

First Quarter 61%

11:36

00:27

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 OK

Sun - Rise: 08:00, Set: 15:55, Transit: 11:57. Moon - Rise: 11:36, Set: 00:27. Civil Dark: 16:34 - 07:20. Nautical Dark: 17:17 - 06:37. Astro Dark: 17:58 - 05:57

Total Clouds (% Sky Obscured)

86
84
82
80
78
77
75
76
79
79
82
85
87
87
89
91
86
80
73
56
38
19

Low Clouds (% Sky Obscured)

86
84
82
80
78
77
75
76
79
79
82
83
85
86
88
91
85
80
73
56
38
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

10
13
13
13
12
13
13
10
7
4
3
2
1
2
2
3
3
3
2
1
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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
4
3
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3

Dew Point (°C)

5
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
6
6
6
5
5

Relative Humidity (%)

79
78
81
82
84
84
84
85
84
82
82
82
82
84
84
84
84
85
85
85
88
90

Pressure (mb)

1039
1040
1040
1039
1039
1039
1039
1039
1038
1038
1038
1038
1039
1039
1039
1038
1038
1038
1038
1037
1037
1038

Ozone (du)

306
306
305
305
304
304
304
303
303
302
302
302
303
303
304
305
306
303
301
298
297
297

Forecast for Canterbury, Kent, United Kingdom (51.28,1.08)

Generated: 21/12/25 20:43:00. Forecast: 21/12/25 to 27/12/25. Timezone: UTC+0.00