Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 15

First Quarter 63%

13:03

00:07

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

Sun - Rise: 08:01, Set: 15:55, Transit: 11:58. Moon - Rise: 13:03, Set: 00:07. Civil Dark: 16:34 - 07:21. Nautical Dark: 17:17 - 06:38. Astro Dark: 17:58 - 05:58

Total Clouds (% Sky Obscured)

13
0
1
2
1
14
3
5
5
14
6
2
4
7
37
98
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

6
0
1
2
0
12
0
3
0
0
0
0
2
6
13
20
28
3
0
0
0
77
100
91

Medium Clouds (% Sky Obscured)

12
0
0
0
1
9
3
0
2
2
2
1
1
2
2
18
85
36
78
90
98
99
98
98

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
4
13
5
2
2
0
27
97
100
100
99
100
100
100
99
99

ISS Passover

Visibility (miles)

8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
7
3
2
2
2
2
1
2

Fog (%)

-
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

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

Precipitation Probability (%)

7
6
5
4
0
0
8
13
14
13
7
0
0
0
0
6
16
28
47
67
77
77
72
59

Precipitation Amount (mm)

0.04
0
0.02
0.01
0
0
0.04
0.17
0.27
0.17
0.03
0
0
0
0
0.01
0.07
0.15
0.25
0.41
0.56
0.58
0.51
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
89
87
87
88
89
91
93
96
98
99
100
99
93
85
84
85
88
91
93
95
96
96
97

Pressure (mb)

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

Ozone (du)

317
320
321
323
324
325
327
329
332
334
336
337
336
334
333
330
328
326
326
327
328
330
332
332

Sunday 16

Waxing Gibbous 73%

13:23

01:15

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

Sun - Rise: 08:01, Set: 15:55, Transit: 11:58. Moon - Rise: 13:23, Set: 01:15. Civil Dark: 16:35 - 07:22. Nautical Dark: 17:17 - 06:39. Astro Dark: 17:58 - 05:58

Total Clouds (% Sky Obscured)

98
98
98
37
1
0
1
1
0
0
3
3
33
10
6
11
86
100
100
99
84
70
95
95

Low Clouds (% Sky Obscured)

2
55
12
9
1
0
1
1
0
0
0
0
0
0
0
0
2
2
5
4
22
20
31
52

Medium Clouds (% Sky Obscured)

95
94
21
0
0
0
0
0
0
0
0
0
0
0
0
3
0
1
0
6
9
39
91
48

High Clouds (% Sky Obscured)

91
94
98
32
0
0
0
0
0
0
3
3
33
10
6
8
86
100
100
99
80
47
72
89

ISS Passover

Visibility (miles)

5
9
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

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

Precipitation Probability (%)

33
10
0
0
0
0
0
0
0
0
0
0
0
0
0
7
7
9
10
11
10
10
7
6

Precipitation Amount (mm)

0.21
0.05
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.04
0.07
0.08
0.07
0.05
0.05
0.04
0.04

Wind Speed/Direction (mph)

9
9
10
9
6
10
9
9
8
8
7
7
7
8
8
9
9
10
11
12
12
14
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

97
97
96
94
93
93
93
94
96
97
98
99
95
91
89
88
88
88
90
91
92
91
91
92

Pressure (mb)

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

Ozone (du)

329
325
319
312
304
299
300
304
306
305
303
300
297
293
291
289
288
287
286
287
287
287
286
286

Monday 17

Waxing Gibbous 82%

13:45

02:25

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
21 Bad

Sun - Rise: 08:02, Set: 15:55, Transit: 11:59. Moon - Rise: 13:45, Set: 02:25. Civil Dark: 16:35 - 07:22. Nautical Dark: 17:18 - 06:39. Astro Dark: 17:58 - 05:59

Total Clouds (% Sky Obscured)

94
98
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

45
47
86
66
56
56
100
99
63
41
31
17
10
9
3
21
100
28
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

3
34
10
15
5
4
2
15
73
13
98
80
91
97
99
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

91
95
95
97
99
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
6
4
2

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

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

Precipitation Probability (%)

6
5
5
6
10
11
8
6
5
4
0
0
0
6
9
10
8
7
10
24
39
58
68
58

Precipitation Amount (mm)

0.03
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.02
0.01
0
0
0
0.02
0.03
0.02
0.01
0.01
0.02
0.05
0.11
0.27
0.55
0.67

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
10
9
9
9
9
9
9
9
9
9
9
9
10
10
10

Feels Like (°C)

6
6
6
7
10
10
10
7
6
6
6
5
5
4
4
4
5
5
6
6
6
6
10
10

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
90
89
88
87
87
87
86
87
88
87
88
86
84
80
76
75
76
77
76
76
76

Pressure (mb)

1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1013
1012
1011
1010
1009
1008
1007
1006
1005
1005
1005
1005

Ozone (du)

284
283
281
279
276
274
274
274
273
273
273
272
272
271
271
273
276
278
279
280
281
284
289
294

Tuesday 18

Waxing Gibbous 89%

14:09

03:37

22 Bad
23 Bad
00 OK
01 Good
02 Good
03 Good
04 Good
05 Good
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

Sun - Rise: 08:03, Set: 15:55, Transit: 11:59. Moon - Rise: 14:09, Set: 03:37. Civil Dark: 16:35 - 07:23. Nautical Dark: 17:18 - 06:40. Astro Dark: 17:59 - 05:59

Total Clouds (% Sky Obscured)

100
100
2
2
2
2
2
2
93
93
93
93
93
93
97
97
97
97
97
97
99
99
99
99

Low Clouds (% Sky Obscured)

100
100
1
1
1
1
1
1
32
32
32
32
32
32
2
2
2
2
2
2
27
27
27
27

Medium Clouds (% Sky Obscured)

100
100
1
1
1
1
1
1
58
58
58
58
58
58
65
65
65
65
65
65
66
66
66
66

High Clouds (% Sky Obscured)

100
100
0
0
0
0
0
0
89
89
89
89
89
89
96
96
96
96
96
96
98
98
98
98

ISS Passover

Visibility (miles)

3
6
8
10
10
10
10
10
10
7
4
2
1
1
2
6
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

33
15
10
5
0
0
5
11
15
18
28
36
26
18
13
10
5
0
0
0
0
0
0
1

Precipitation Amount (mm)

0.4
0.13
0.07
0.03
0
0
0.02
0.11
0.21
0.2
0.23
0.34
0.45
0.52
0.47
0.24
0.04
0
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

18
17
16
15
13
11
11
11
10
10
9
9
9
9
9
8
7
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
6
6
6
5
5
5
5
5
4
5
5
6
7
7
7
7
7
6
5
4
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

76
77
78
78
80
82
83
85
87
92
93
93
90
87
86
86
87
87
88
90
90
90
90
90

Pressure (mb)

1006
1007
1007
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1011
1011
1011
1012
1012
1012
1013

Ozone (du)

299
306
312
315
318
323
332
342
353
364
375
382
385
384
383
382
381
380
380
381
381
380
379
378

Wednesday 19

Waxing Gibbous 87%

14:39

04:53

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 OK
19 OK
20 OK
21 OK

Sun - Rise: 08:03, Set: 15:56, Transit: 12:00. Moon - Rise: 14:39, Set: 04:53. Civil Dark: 16:36 - 07:23. Nautical Dark: 17:19 - 06:41. Astro Dark: 17:59 - 06:00

Total Clouds (% Sky Obscured)

99
99
91
91
91
91
91
91
94
94
94
94
94
94
93
93
93
93
93
93
34
34
34
34

Low Clouds (% Sky Obscured)

27
27
20
20
20
20
20
20
27
27
27
27
27
27
3
3
3
3
3
3
13
13
13
13

Medium Clouds (% Sky Obscured)

66
66
23
23
23
23
23
23
23
23
23
23
23
23
80
80
80
80
80
80
9
9
9
9

High Clouds (% Sky Obscured)

98
98
88
88
88
88
88
88
91
91
91
91
91
91
87
87
87
87
87
87
25
25
25
25

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

3
4
5
5
4
3
0
0
0
5
11
13
11
6
4
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.02
0.03
0.02
0.01
0.01
0
0
0
0.01
0.05
0.09
0.06
0.02
0.01
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
89
89
89
88
88
88
88
89
90
92
91
88
85
84
82
82
81
83
85
86
84
82
81

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015

Ozone (du)

379
380
381
382
382
382
382
382
379
372
361
351
341
332
323
315
306
298
292
287
283
279
275
272

Thursday 20

Waxing Gibbous 95%

15:16

06:10

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
21 Bad

Sun - Rise: 08:04, Set: 15:56, Transit: 12:00. Moon - Rise: 15:16, Set: 06:10. Civil Dark: 16:36 - 07:24. Nautical Dark: 17:19 - 06:41. Astro Dark: 18:00 - 06:01

Total Clouds (% Sky Obscured)

34
34
31
31
31
31
31
31
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

13
13
1
1
1
1
1
1
0
0
0
0
0
0
100
100
100
100
100
100
99
99
99
99

Medium Clouds (% Sky Obscured)

9
9
0
0
0
0
0
0
91
91
91
91
91
91
100
100
100
100
100
100
0
0
0
0

High Clouds (% Sky Obscured)

25
25
31
31
31
31
31
31
100
100
100
100
100
100
99
99
99
99
99
99
76
76
76
76

ISS Passover

Visibility (miles)

10
10
7
5
4
4
4
4
5
7
10
10
10
10
10
10
10
10
10
10
10
10
10
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

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

Precipitation Probability (%)

21
51
71
81
85
86
84
78
72
68
56
43
28
15
10
7
0
0
7
10
18
24
32
36

Precipitation Amount (mm)

0.02
0.13
0.31
0.57
0.89
1.06
0.9
0.58
0.36
0.26
0.2
0.15
0.1
0.07
0.04
0.02
0
0
0.02
0.05
0.11
0.22
0.45
0.64

Wind Speed/Direction (mph)

15
17
19
20
20
20
18
15
13
12
11
10
10
9
9
8
7
6
6
7
9
11
14
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
6
10
10
11
11
11
11
8
7
7
7
7
7
8
8
8
7
6
6
7
7

Dew Point (°C)

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

Relative Humidity (%)

83
85
87
87
86
85
85
86
87
89
93
94
92
90
88
87
87
86
85
87
88
87
84
82

Pressure (mb)

1015
1014
1013
1012
1011
1010
1009
1008
1008
1008
1008
1009
1009
1009
1009
1009
1008
1008
1007
1007
1006
1006
1005
1005

Ozone (du)

269
266
264
262
261
261
261
261
262
263
264
265
268
270
273
275
278
281
285
291
296
302
308
312

Friday 21

Waxing Gibbous 99%

16:03

07:25

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

Sun - Rise: 08:04, Set: 15:57, Transit: 12:01. Moon - Rise: 16:03, Set: 07:25. Civil Dark: 16:37 - 07:24. Nautical Dark: 17:20 - 06:42. Astro Dark: 18:00 - 06:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
50
50
50
50
50
50
99
99
99
99

Low Clouds (% Sky Obscured)

99
99
100
100
100
100
100
100
99
99
99
99
99
99
36
36
36
36
36
36
30
30
30
30

Medium Clouds (% Sky Obscured)

0
0
1
1
1
1
1
1
34
34
34
34
34
34
33
33
33
33
33
33
31
31
31
31

High Clouds (% Sky Obscured)

76
76
79
79
79
79
79
79
77
77
77
77
77
77
2
2
2
2
2
2
99
99
99
99

ISS Passover

Visibility (miles)

10
10
10
10
8
6
8
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

32
29
28
25
22
17
7
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.57
0.41
0.32
0.22
0.15
0.12
0.07
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
14
13
14
13
12
11
10
9
9
8
9
9
9
9
7
7
6
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
82
83
84
86
85
85
85
86
88
88
87
85
83
82
82
82
83
84
86
86
86
87

Pressure (mb)

1005
1005
1006
1007
1008
1008
1009
1010
1011
1012
1013
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

315
316
317
319
321
323
324
324
323
319
313
308
306
306
306
305
305
305
304
304
304
305
306
307

Forecast for Guildford, Surrey, UK (51.24,-0.57)

Generated: 15/12/18 22:21:55. Forecast: 15/12/18 to 21/12/18. Timezone: UTC+0.00