Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 95%

22:51

07:11

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

Sun - Rise: 05:09, Set: 21:02, Transit: 13:06. Moon - Rise: 22:51, Set: 07:11. Civil Dark: 21:45 - 04:27. Nautical Dark: 22:44 - 03:26. Astro Dark: 00:29 - 01:35

Total Clouds (% Sky Obscured)

17
23
31
18
21
27
40
48
38
20
45
96
95
91
93
96
95
92
51
25
5
2
9
9

Low Clouds (% Sky Obscured)

16
21
18
13
13
19
14
33
31
3
1
0
0
0
1
3
7
2
0
0
0
2
9
9

Medium Clouds (% Sky Obscured)

4
9
27
15
19
23
37
45
34
20
9
6
3
2
2
6
27
70
36
2
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
40
95
95
91
93
95
95
91
47
25
5
0
0
0

ISS Passover

Visibility (miles)

6
7
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

Precipitation Type

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
None
None
None
None
None
None
None

Precipitation Probability (%)

2
0
4
6
8
8
7
4
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.03
0
0.05
0.07
0.08
0.09
0.09
0.05
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
19
19
18
17
16
15
14
13
12
11
10
9
9
9
9
9
11
13
15
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
48
51
53
55
57
60
65
69
73
76
79
81
82
83
83
83
82
81
76
69
63
58
55

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1015
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

359
359
359
358
357
356
355
355
354
353
353
354
355
355
356
356
357
359
360
361
362
361
357
351

Tuesday 21

Waning Gibbous 89%

23:51

07:59

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

Sun - Rise: 05:08, Set: 21:04, Transit: 13:06. Moon - Rise: 23:51, Set: 07:59. Civil Dark: 21:46 - 04:25. Nautical Dark: 22:47 - 03:24. Astro Dark: 00:38 - 01:22

Total Clouds (% Sky Obscured)

61
86
33
39
46
52
52
56
75
56
44
45
46
55
42
18
2
9
57
44
52
61
55
42

Low Clouds (% Sky Obscured)

58
75
0
4
17
11
12
23
15
23
23
23
13
2
0
1
2
0
0
0
0
0
0
6

Medium Clouds (% Sky Obscured)

23
86
33
38
45
51
51
38
62
27
16
6
39
54
41
17
1
1
26
26
30
36
43
35

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
26
32
36
25
30
0
0
0
0
0
9
55
41
48
58
49
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
19
20
20
19
18
17
16
14
13
12
11
11
10
9
9
9
10
12
14
16
17
18

Feels Like (°C)

18
19
19
20
20
19
18
17
16
14
13
12
11
11
9
9
9
9
10
12
14
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

52
49
47
47
48
50
53
55
58
60
61
61
62
64
67
69
70
70
68
64
58
54
50
48

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

346
343
341
339
337
336
334
333
333
332
332
331
331
331
331
331
332
332
332
332
333
333
335
337

Wednesday 22

Waning Gibbous 82%

00:42

08:55

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

Sun - Rise: 05:07, Set: 21:05, Transit: 13:07. Moon - Rise: 00:42, Set: 08:55. Civil Dark: 21:48 - 04:24. Nautical Dark: 22:49 - 03:22. Astro Dark: 00:52 - N/A

Total Clouds (% Sky Obscured)

39
41
48
82
52
50
37
27
25
34
40
38
30
48
67
94
100
99
91
91
91
91
91
91

Low Clouds (% Sky Obscured)

5
5
1
2
0
0
4
8
6
5
5
6
9
6
4
0
82
82
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

37
38
41
59
52
50
36
24
23
31
39
36
29
46
48
78
95
81
73
73
73
73
73
73

High Clouds (% Sky Obscured)

10
16
16
61
2
0
0
2
0
8
2
2
0
3
54
83
95
85
82
82
82
82
82
82

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

Chance of Frost

Temperature (°C)

19
20
20
21
21
20
20
18
16
14
13
12
11
11
10
10
10
11
11
13
15
17
18
20

Feels Like (°C)

19
20
20
21
21
20
20
18
16
14
13
12
11
11
10
10
10
11
11
13
15
17
18
20

Dew Point (°C)

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

Relative Humidity (%)

46
43
41
40
40
41
43
44
48
51
54
56
59
62
66
70
72
73
72
67
59
53
48
44

Pressure (mb)

1021
1021
1020
1020
1020
1019
1019
1019
1020
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017

Ozone (du)

338
338
337
336
337
337
337
335
333
331
330
330
331
335
340
344
344
342
340
339
337
336
337
339

Thursday 23

Waning Gibbous 73%

01:22

09:56

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:06, Set: 21:06, Transit: 13:07. Moon - Rise: 01:22, Set: 09:56. Civil Dark: 21:50 - 04:22. Nautical Dark: 22:51 - 03:20. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
99
99
99
99
100
100
100
100
100
100
98
98
98
98
98
98
95
95
95
95
95
95

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
91
91
91
91
91
91
95
95
95
95
95
95

Medium Clouds (% Sky Obscured)

99
99
99
99
99
99
100
100
100
100
100
100
89
89
89
89
89
89
19
19
19
19
19
19

High Clouds (% Sky Obscured)

96
96
96
96
96
96
93
93
93
93
93
93
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
5
4
5
6
6
6
7
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
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
2
3
2
0
0
0
0
0
0
0
0
3
10
28
43
48
48
48
47
46
37
27

Precipitation Amount (mm)

0
0
0.02
0.03
0.02
0
0
0
0
0
0
0
0
0.04
0.16
0.3
0.33
0.28
0.27
0.33
0.49
0.63
0.64
0.58

Wind Speed/Direction (mph)

8
9
8
9
9
9
10
10
10
10
10
10
10
10
11
11
10
10
9
7
6
6
5
7

Chance of Frost

Temperature (°C)

20
20
18
17
18
18
18
18
16
15
14
14
13
13
13
13
13
13
13
13
13
14
15
15

Feels Like (°C)

20
20
18
17
18
18
18
18
16
15
14
14
13
13
13
13
13
13
13
13
13
14
15
15

Dew Point (°C)

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

Relative Humidity (%)

43
45
49
52
51
49
49
53
61
69
75
80
83
84
85
85
86
86
86
85
85
83
80
76

Pressure (mb)

1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

341
342
343
344
346
348
350
350
349
349
349
349
348
348
347
348
350
353
357
362
367
370
369
366

Friday 24

Waning Gibbous 64%

01:55

10:59

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 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:05, Set: 21:08, Transit: 13:07. Moon - Rise: 01:55, Set: 10:59. Civil Dark: 21:51 - 04:21. Nautical Dark: 22:53 - 03:18. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
93
93
93
93
93
100
100
100
100
100
100
10
10
10
10
10
10
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

26
26
26
26
26
26
100
100
100
100
100
100
10
10
10
10
10
10
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

92
92
92
92
92
92
100
100
100
100
100
100
0
0
0
0
0
0
70
70
70
70
70
70

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2

ISS Passover

Visibility (miles)

9
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
Very 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
None

Precipitation Probability (%)

20
13
6
3
2
0
0
0
0
0
0
0
3
3
0
0
0
2
0
0
0
0
0
0

Precipitation Amount (mm)

0.48
0.31
0.14
0.05
0.02
0
0
0
0
0
0
0
0.01
0.01
0
0
0
0.01
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
68
64
62
62
63
64
67
71
74
77
80
82
83
84
86
86
85
83
78
72
67
65
63

Pressure (mb)

1013
1013
1013
1013
1013
1013
1014
1014
1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1018

Ozone (du)

362
359
355
352
350
349
347
344
341
338
334
330
326
322
319
317
315
313
312
310
309
307
304
301

Saturday 25

Waning Gibbous 54%

02:22

12:05

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

Sun - Rise: 05:04, Set: 21:09, Transit: 13:07. Moon - Rise: 02:22, Set: 12:05. Civil Dark: 21:53 - 04:20. Nautical Dark: 22:55 - 03:16. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
99
99
99
99
26
26
26
26
26
26
100
100
100
100
100
100
96
96
96
96
96
96

Low Clouds (% Sky Obscured)

81
81
81
81
81
81
12
12
12
12
12
12
100
100
100
100
100
100
91
91
91
91
91
91

Medium Clouds (% Sky Obscured)

97
97
97
97
97
97
9
9
9
9
9
9
11
11
11
11
11
11
8
8
8
8
8
8

High Clouds (% Sky Obscured)

0
0
0
0
0
0
12
12
12
12
12
12
88
88
88
88
88
88
88
88
88
88
88
88

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
9
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
10
17
21
23
19
9
5
3
2
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.07
0.15
0.19
0.21
0.2
0.12
0.05
0.02
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
20
20
21
20
20
19
18
17
16
15
14
13
13
13
12
13
13
14
15
16
18
19
19

Feels Like (°C)

19
20
20
21
20
20
19
18
17
16
15
14
13
13
13
12
13
13
14
15
16
18
19
19

Dew Point (°C)

11
12
12
12
12
12
12
11
11
11
11
10
10
11
11
11
12
12
12
13
13
13
13
13

Relative Humidity (%)

61
59
58
57
58
59
61
64
69
73
77
80
82
85
89
93
94
93
91
86
80
75
71
68

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017

Ozone (du)

299
297
296
295
295
296
296
295
294
293
293
292
292
291
291
291
292
294
295
298
300
302
302
302

Sunday 26

Third Quarter 45%

02:44

No Set

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
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:03, Set: 21:10, Transit: 13:07. Moon - Rise: 02:44, Set: No Set. Civil Dark: 21:54 - 04:18. Nautical Dark: 22:57 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

95
95
95
95
95
95
97
97
97
97
97
97
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

91
91
91
91
91
91
10
10
10
10
10
10
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

29
29
29
29
29
29
9
9
9
9
9
9
100
100
100
100
100
100
70
70
70
70
70
70

High Clouds (% Sky Obscured)

31
31
31
31
31
31
97
97
97
97
97
97
76
76
76
76
76
76
88
88
88
88
88
88

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
Very 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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

2
2
2
3
6
15
25
19
8
6
4
5
5
3
2
2
2
3
4
5
6
8
9
8

Precipitation Amount (mm)

0.01
0.01
0.01
0.02
0.05
0.1
0.14
0.14
0.11
0.09
0.08
0.06
0.06
0.05
0.04
0.05
0.05
0.07
0.07
0.06
0.05
0.05
0.05
0.06

Wind Speed/Direction (mph)

15
15
16
16
14
14
14
12
13
13
11
12
13
12
12
12
12
12
12
12
12
12
12
12

Chance of Frost

Temperature (°C)

20
19
19
18
17
17
17
17
16
16
16
15
15
15
15
14
14
14
14
15
15
16
17
17

Feels Like (°C)

20
19
19
18
17
17
17
17
16
16
16
15
15
15
15
14
14
14
14
15
15
16
17
17

Dew Point (°C)

13
13
13
13
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

Relative Humidity (%)

67
67
69
71
73
74
74
74
75
78
79
81
82
83
85
87
88
88
87
85
81
77
73
70

Pressure (mb)

1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

302
302
302
302
301
301
303
307
313
317
317
316
315
315
315
315
315
314
314
313
312
312
312
312

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

Generated: 20/05/19 13:31:56. Forecast: 20/05/19 to 26/05/19. Timezone: UTC+1.00