Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 20

Waxing Gibbous 84%

17:35

02:37

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 OK
07 Good
08 Good
09 OK
10 OK
11 Good
12 Good
13 OK
14 OK

Sun - Rise: 06:55, Set: 19:13, Transit: 13:03. Moon - Rise: 17:35, Set: 02:37. Civil Dark: 19:46 - 06:22. Nautical Dark: 20:25 - 05:43. Astro Dark: 21:07 - 05:01

Total Clouds (% Sky Obscured)

94
100
100
98
100
100
100
100
99
91
43
45
23
100
4
9
12
7
42
29
8
2
30
11

Low Clouds (% Sky Obscured)

91
27
9
3
13
12
2
6
2
66
42
41
17
98
3
3
2
5
27
27
5
1
16
9

Medium Clouds (% Sky Obscured)

9
60
78
78
63
87
83
97
64
29
12
14
14
100
2
8
10
3
16
20
6
2
25
4

High Clouds (% Sky Obscured)

30
99
99
98
100
100
100
100
99
81
1
0
0
0
0
0
2
2
17
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
6
2
2
2
4
7
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

Precipitation Type

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

Precipitation Probability (%)

31
33
39
40
50
68
76
77
55
44
34
34
35
41
35
20
0
0
0
0
5
6
6
5

Precipitation Amount (mm)

0.36
0.07
0.36
0.15
0.18
0.66
1.84
2.64
1.78
0.59
0.14
0.1
0.12
0.12
0.06
0.02
0
0
0
0
0.01
0.02
0.03
0.03

Wind Speed/Direction (mph)

17
19
21
23
25
26
27
22
24
26
25
23
21
20
18
17
16
17
20
22
6
6
25
21

Chance of Frost

Temperature (°C)

18
18
17
17
17
17
17
18
17
16
16
14
12
11
10
9
9
9
11
12
13
14
14
15

Feels Like (°C)

18
18
18
18
18
17
17
18
17
16
16
14
12
11
6
6
5
6
11
12
13
14
14
15

Dew Point (°C)

16
16
16
16
16
16
16
15
14
14
13
11
9
7
7
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

88
88
90
90
89
90
91
86
86
88
84
80
79
78
81
81
80
77
72
67
64
61
58
57

Pressure (mb)

1006
1005
1004
1003
1002
1000
999
998
997
997
997
998
1000
1002
1004
1005
1006
1008
1009
1010
1010
1011
1012
1012

Ozone (du)

293
293
294
296
297
298
298
299
302
307
311
314
316
319
321
324
326
328
330
330
327
322
319
317

Friday 21

Waxing Gibbous 90%

18:06

03:40

15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 Good
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

Sun - Rise: 06:57, Set: 19:10, Transit: 13:02. Moon - Rise: 18:06, Set: 03:40. Civil Dark: 19:44 - 06:24. Nautical Dark: 20:23 - 05:44. Astro Dark: 21:04 - 05:03

Total Clouds (% Sky Obscured)

2
0
0
8
3
1
3
88
100
100
100
100
100
99
100
96
98
99
99
99
100
100
100
99

Low Clouds (% Sky Obscured)

2
0
0
7
3
0
2
2
4
2
9
6
5
2
2
7
10
14
26
32
10
31
29
22

Medium Clouds (% Sky Obscured)

1
0
0
2
1
0
2
3
5
4
11
8
15
7
51
73
70
81
93
95
100
100
100
99

High Clouds (% Sky Obscured)

0
0
0
0
0
1
2
87
100
100
100
100
100
99
100
94
98
98
98
98
100
99
100
9

ISS Passover

Visibility (miles)

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

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
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
Light Rain

Precipitation Probability (%)

5
4
3
2
0
0
0
0
3
3
4
5
6
6
7
0
0
10
16
27
35
43
52
58

Precipitation Amount (mm)

0.03
0.02
0.01
0.01
0
0
0
0
0.01
0.02
0.02
0.03
0.03
0.03
0.01
0
0
0.01
0.07
0.17
0.33
0.55
0.79
0.97

Wind Speed/Direction (mph)

20
22
20
17
15
12
11
10
9
7
8
3
3
7
7
6
6
6
6
7
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
57
59
62
64
66
67
69
71
73
74
76
77
78
78
79
81
82
82
83
85
86
88
91

Pressure (mb)

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

Ozone (du)

317
316
314
311
308
306
305
302
300
297
294
292
290
288
287
285
284
284
283
283
282
281
280
279

Saturday 22

Waxing Gibbous 95%

18:32

04:45

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:58, Set: 19:08, Transit: 13:02. Moon - Rise: 18:32, Set: 04:45. Civil Dark: 19:41 - 06:25. Nautical Dark: 20:21 - 05:46. Astro Dark: 21:02 - 05:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
75
75

Low Clouds (% Sky Obscured)

17
34
4
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
75
75

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
53
26
86
95
84
45
8
0
1
6
6
6
6
6
6
0
0

High Clouds (% Sky Obscured)

98
100
2
15
29
4
21
65
72
76
19
66
6
0
5
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
4
4
4
4
4
4
4
4
5
5
6
7
7
7
5
4
5
6
8
8
9
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
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

62
65
70
76
80
79
75
69
66
57
51
46
44
49
60
66
67
66
66
61
52
48
48
56

Precipitation Amount (mm)

1.13
1.36
1.85
2.54
2.97
2.75
2.19
1.66
1.17
0.73
0.46
0.31
0.24
0.29
0.57
1.15
1.63
1.57
1.25
0.96
0.69
0.47
0.43
0.87

Wind Speed/Direction (mph)

9
9
10
11
12
12
11
12
14
16
16
14
12
12
12
11
11
10
10
10
13
17
20
22

Chance of Frost

Temperature (°C)

10
11
11
11
12
12
12
13
13
14
14
15
15
15
14
13
12
12
12
12
11
10
9
9

Feels Like (°C)

10
11
11
11
12
12
12
13
13
14
14
15
15
15
14
13
12
12
12
12
11
10
6
5

Dew Point (°C)

9
9
10
10
10
10
11
11
12
13
13
13
13
13
13
12
12
12
12
11
11
10
8
7

Relative Humidity (%)

93
93
91
90
90
90
91
92
93
93
93
92
91
91
91
93
95
97
99
99
98
97
93
89

Pressure (mb)

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

Ozone (du)

279
279
278
277
276
276
276
276
276
276
276
276
276
276
276
276
278
285
293
301
308
313
318
322

Sunday 23

Waxing Gibbous 99%

18:56

05:52

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

Sun - Rise: 07:00, Set: 19:06, Transit: 13:02. Moon - Rise: 18:56, Set: 05:52. Civil Dark: 19:39 - 06:27. Nautical Dark: 20:18 - 05:48. Astro Dark: 20:59 - 05:07

Total Clouds (% Sky Obscured)

75
75
75
75
71
71
71
71
71
71
42
42
42
42
42
42
0
0
0
0
0
0
63
63

Low Clouds (% Sky Obscured)

75
75
75
75
53
53
53
53
53
53
0
0
0
0
0
0
0
0
0
0
0
0
58
58

Medium Clouds (% Sky Obscured)

0
0
0
0
62
62
62
62
62
62
0
0
0
0
0
0
0
0
0
0
0
0
34
34

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
42
42
42
42
42
42
0
0
0
0
0
0
3
3

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

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

Precipitation Probability (%)

54
54
46
30
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.85
2.34
1.32
0.25
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

23
23
21
19
17
15
14
13
11
10
9
9
8
8
7
6
6
6
6
6
7
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
78
74
73
72
73
74
76
77
79
80
80
81
82
83
85
84
81
76
71
65
60
55
51

Pressure (mb)

1011
1013
1015
1017
1020
1022
1024
1026
1028
1029
1030
1031
1032
1033
1034
1034
1035
1036
1037
1037
1038
1038
1038
1038

Ozone (du)

325
326
324
321
316
310
303
296
290
285
280
277
275
273
272
272
272
272
273
274
273
273
272
271

Monday 24

Waxing Gibbous 100%

19:18

07:01

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

Sun - Rise: 07:02, Set: 19:03, Transit: 13:01. Moon - Rise: 19:18, Set: 07:01. Civil Dark: 19:37 - 06:28. Nautical Dark: 20:16 - 05:49. Astro Dark: 20:56 - 05:09

Total Clouds (% Sky Obscured)

63
63
63
63
30
30
30
30
30
30
0
0
0
0
0
0
5
5
5
5
5
5
3
3

Low Clouds (% Sky Obscured)

58
58
58
58
15
15
15
15
15
15
0
0
0
0
0
0
3
3
3
3
3
3
2
2

Medium Clouds (% Sky Obscured)

34
34
34
34
27
27
27
27
27
27
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
3
3
3
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
2
2

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
14
13
11
10
8
7
6
5
5
5
5
4
4
4
4
5
8
11
12
13
14
15

Dew Point (°C)

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

Relative Humidity (%)

49
49
52
57
62
68
73
78
80
82
82
82
83
84
86
89
90
87
82
76
69
63
58
55

Pressure (mb)

1038
1038
1038
1039
1039
1039
1040
1041
1041
1041
1041
1041
1041
1041
1041
1041
1041
1041
1041
1040
1040
1040
1040
1039

Ozone (du)

270
269
269
270
270
270
270
270
270
270
270
270
270
270
270
269
269
269
269
268
268
268
267
267

Tuesday 25

Full Moon 99%

19:39

08:10

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

Sun - Rise: 07:03, Set: 19:01, Transit: 13:01. Moon - Rise: 19:39, Set: 08:10. Civil Dark: 19:34 - 06:30. Nautical Dark: 20:13 - 05:51. Astro Dark: 20:54 - 05:11

Total Clouds (% Sky Obscured)

3
3
3
3
16
16
16
16
16
16
45
45
45
45
45
45
53
53
53
53
53
53
75
75

Low Clouds (% Sky Obscured)

2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
9
9

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)

2
2
2
2
16
16
16
16
16
16
45
45
45
45
45
45
52
52
52
52
52
52
72
72

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
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)

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

Chance of Frost

Temperature (°C)

16
16
15
14
13
11
11
10
9
9
8
8
8
7
6
5
5
7
9
12
13
15
16
18

Feels Like (°C)

16
16
15
14
13
11
11
9
8
8
7
7
6
5
4
3
3
5
8
12
13
15
16
18

Dew Point (°C)

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

Relative Humidity (%)

55
56
60
66
71
75
78
79
80
81
81
81
82
85
89
94
95
91
84
79
72
66
60
56

Pressure (mb)

1038
1038
1037
1037
1036
1036
1037
1037
1036
1036
1036
1035
1035
1034
1034
1034
1033
1033
1033
1033
1032
1032
1032
1031

Ozone (du)

266
265
264
263
262
261
261
260
260
259
259
259
259
259
259
259
258
258
258
258
258
259
259
261

Wednesday 26

Waning Gibbous 96%

20:00

09:21

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

Sun - Rise: 07:05, Set: 18:59, Transit: 13:01. Moon - Rise: 20:00, Set: 09:21. Civil Dark: 19:32 - 06:32. Nautical Dark: 20:11 - 05:53. Astro Dark: 20:51 - 05:13

Total Clouds (% Sky Obscured)

75
75
75
75
0
0
0
0
0
0
1
1
1
1
1
1
12
12
12
12
12
12
6
6

Low Clouds (% Sky Obscured)

9
9
9
9
0
0
0
0
0
0
1
1
1
1
1
1
12
12
12
12
12
12
0
0

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)

72
72
72
72
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
6

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
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)

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

Chance of Frost

Temperature (°C)

18
18
17
16
14
13
12
11
11
10
10
9
9
9
9
9
9
10
12
14
15
16
17
17

Feels Like (°C)

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

Dew Point (°C)

9
8
8
8
8
8
8
8
7
7
7
7
6
6
6
7
7
8
9
10
11
11
12
12

Relative Humidity (%)

53
53
56
61
66
70
74
79
81
83
84
84
84
85
86
88
89
86
81
76
75
75
74
72

Pressure (mb)

1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1027
1026
1026
1026
1025
1025
1025
1026
1026
1026
1026
1026

Ozone (du)

263
264
265
265
264
263
262
261
260
259
257
257
256
256
256
257
257
257
258
258
258
258
259
260

Forecast for Bristol, City of Bristol, UK (51.45,-2.59)

Generated: 20/09/18 15:21:06. Forecast: 20/09/18 to 26/09/18. Timezone: UTC+1.00