Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:24

06:55

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

Sun - Rise: 06:48, Set: 19:04, Transit: 12:55. Moon - Rise: 19:24, Set: 06:55. Civil Dark: 19:37 - 06:15. Nautical Dark: 20:16 - 05:35. Astro Dark: 20:57 - 04:54

Total Clouds (% Sky Obscured)

91
94
84
52
95
84
77
91
15
93
77
25
2
52
10
45
48
6
88
60
86
87
86
81

Low Clouds (% Sky Obscured)

90
93
83
52
95
84
77
91
7
20
43
5
2
9
10
4
1
0
0
0
0
0
2
13

Medium Clouds (% Sky Obscured)

13
13
6
3
7
1
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
9
91
60
21
0
48
0
41
48
6
88
60
86
87
86
79

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
2
2
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
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
11
10
8
7
6
6
5
5
4
4
4
4
4
4
5
4
4
5
5
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
64
64
65
68
71
76
81
85
89
92
93
94
94
94
95
95
93
88
84
78
74
68
62

Pressure (mb)

1023
1023
1024
1024
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1028
1028
1028
1029
1029
1030
1030
1030
1030
1030

Ozone (du)

296
297
299
300
299
296
291
292
293
293
294
289
289
289
287
286
284
282
283
283
284
283
284
281

Tuesday 21

Full Moon 99%

19:39

08:07

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 Good
11 Good
12 Bad
13 Bad

Sun - Rise: 06:49, Set: 19:02, Transit: 12:54. Moon - Rise: 19:39, Set: 08:07. Civil Dark: 19:35 - 06:16. Nautical Dark: 20:14 - 05:37. Astro Dark: 20:55 - 04:56

Total Clouds (% Sky Obscured)

90
98
100
100
100
98
98
98
98
97
97
97
95
91
81
80
84
84
48
45
20
20
73
83

Low Clouds (% Sky Obscured)

45
84
100
97
95
52
34
10
6
3
3
7
9
9
9
9
9
7
2
1
0
16
70
83

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)

82
88
96
96
96
97
97
98
98
97
97
97
95
90
78
78
83
84
47
45
20
6
12
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
55
56
60
66
72
77
82
90
93
95
97
98
99
99
99
100
99
93
89
82
76
71
66

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1028
1028
1028
1029
1028
1028
1028

Ozone (du)

281
280
280
280
279
278
276
276
276
276
275
275
274
274
274
274
274
275
275
276
276
276
275
275

Wednesday 22

Waning Gibbous 96%

19:53

09:19

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

Sun - Rise: 06:51, Set: 18:59, Transit: 12:54. Moon - Rise: 19:53, Set: 09:19. Civil Dark: 19:32 - 06:18. Nautical Dark: 20:11 - 05:39. Astro Dark: 20:52 - 04:58

Total Clouds (% Sky Obscured)

43
35
29
32
0
3
2
1
8
5
2
2
36
23
15
12
56
84
84
84
84
84
84
98

Low Clouds (% Sky Obscured)

43
30
29
32
0
3
2
1
2
3
2
1
36
23
15
12
17
53
53
53
53
53
53
98

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
7
0
0
0
0
0
0
6
2
0
0
1
0
0
0
47
66
66
66
66
66
66
38

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
2
2
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
0.01
0.01
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
60
61
64
71
77
81
85
92
95
96
100
100
100
100
100
100
97
92
87
82
78
76
72

Pressure (mb)

1027
1026
1026
1025
1025
1025
1025
1025
1024
1024
1024
1022
1022
1021
1021
1021
1020
1020
1020
1020
1019
1019
1018
1019

Ozone (du)

275
276
275
274
274
270
270
272
272
272
272
271
272
274
275
275
274
279
280
279
279
279
278
275

Thursday 23

Waning Gibbous 91%

20:07

10:30

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Good
20 Good
21 Good
22 Good
23 OK
00 Good
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 OK

Sun - Rise: 06:52, Set: 18:57, Transit: 12:54. Moon - Rise: 20:07, Set: 10:30. Civil Dark: 19:30 - 06:19. Nautical Dark: 20:09 - 05:40. Astro Dark: 20:50 - 05:00

Total Clouds (% Sky Obscured)

98
98
98
98
98
12
12
12
12
12
12
0
0
0
0
0
0
2
2
2
2
2
2
29

Low Clouds (% Sky Obscured)

98
98
98
98
98
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
0
0
0
2

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

38
38
38
38
38
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
27

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)

14
14
14
13
11
10
9
10
8
6
6
6
5
5
4
5
5
4
4
6
8
9
10
11

Chance of Frost

Temperature (°C)

21
21
21
20
18
17
15
14
13
12
11
10
10
9
9
9
8
7
9
11
14
16
18
20

Feels Like (°C)

21
21
21
20
18
17
15
14
13
12
11
10
9
8
8
7
7
6
8
11
14
16
18
20

Dew Point (°C)

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

Relative Humidity (%)

65
60
61
64
69
74
78
83
87
92
95
97
99
98
98
98
97
95
95
88
83
80
76
70

Pressure (mb)

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

Ozone (du)

274
275
275
275
276
276
275
276
277
277
276
276
275
274
273
273
272
275
275
274
273
272
272
271

Friday 24

Waning Gibbous 84%

20:23

11:41

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

Sun - Rise: 06:54, Set: 18:55, Transit: 12:53. Moon - Rise: 20:23, Set: 11:41. Civil Dark: 19:28 - 06:21. Nautical Dark: 20:07 - 05:42. Astro Dark: 20:47 - 05:02

Total Clouds (% Sky Obscured)

29
29
29
29
29
17
17
17
17
17
17
46
46
46
46
46
46
74
74
74
74
74
74
98

Low Clouds (% Sky Obscured)

2
2
2
2
2
4
4
4
4
4
4
41
41
41
41
41
41
71
71
71
71
71
71
98

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)

27
27
27
27
27
14
14
14
14
14
14
8
8
8
8
8
8
11
11
11
11
11
11
1

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
2
3
3
2
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.03
0.02
0.01
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
21
20
19
17
16
15
14
13
13
14
14
14
14
14
14
14
15
16
17
18
20
21

Feels Like (°C)

21
22
21
20
19
17
16
15
14
13
13
14
14
14
14
14
14
14
15
16
17
18
20
21

Dew Point (°C)

14
14
15
15
15
14
14
14
14
13
13
14
14
14
14
14
14
14
14
15
16
16
17
17

Relative Humidity (%)

65
63
67
72
78
80
86
92
99
100
100
100
100
100
100
100
100
100
99
95
94
89
84
77

Pressure (mb)

1015
1014
1014
1013
1013
1013
1013
1014
1013
1013
1013
1014
1013
1013
1013
1013
1013
1013
1014
1013
1014
1014
1014
1013

Ozone (du)

270
269
268
267
267
267
267
267
266
265
264
267
268
269
269
269
268
268
267
267
266
266
266
267

Saturday 25

Waning Gibbous 76%

20:43

12:50

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
13 Bad

Sun - Rise: 06:56, Set: 18:52, Transit: 12:53. Moon - Rise: 20:43, Set: 12:50. Civil Dark: 19:25 - 06:23. Nautical Dark: 20:04 - 05:44. Astro Dark: 20:45 - 05:04

Total Clouds (% Sky Obscured)

98
98
98
98
98
77
77
77
77
77
77
95
95
95
95
95
95
95
95
95
95
95
95
99

Low Clouds (% Sky Obscured)

98
98
98
98
98
2
2
2
2
2
2
3
3
3
3
3
3
9
9
9
9
9
9
99

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
8
8
8
8
8
8
57
57
57
57
57
57
24

High Clouds (% Sky Obscured)

1
1
1
1
1
77
77
77
77
77
77
94
94
94
94
94
94
88
88
88
88
88
88
2

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
7
5
4
7
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
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 (%)

0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
11
28
35
31
20
13
16
22
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.01
0
0
0
0
0
0
0.03
0.19
0.36
0.33
0.21
0.15
0.17
0.23
0.23

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
23
22
22
20
18
17
17
16
16
16
16
15
15
14
13
13
13
14
15
16
16
17
18

Feels Like (°C)

22
23
23
22
20
18
17
17
16
16
16
16
16
15
14
14
13
13
14
15
16
17
17
18

Dew Point (°C)

17
17
17
17
17
16
16
15
16
16
16
16
15
15
14
13
13
13
14
15
16
16
15
15

Relative Humidity (%)

72
69
70
76
83
87
91
93
97
99
100
100
100
100
100
100
100
100
100
100
100
98
90
83

Pressure (mb)

1013
1013
1012
1012
1012
1013
1013
1013
1013
1013
1014
1013
1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014

Ozone (du)

268
270
272
273
275
276
278
279
280
281
281
280
280
279
278
278
277
276
276
275
275
274
273
272

Sunday 26

Waning Gibbous 68%

21:07

13:58

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

Sun - Rise: 06:57, Set: 18:50, Transit: 12:53. Moon - Rise: 21:07, Set: 13:58. Civil Dark: 19:23 - 06:24. Nautical Dark: 20:02 - 05:45. Astro Dark: 20:42 - 05:06

Total Clouds (% Sky Obscured)

99
99
99
99
99
71
71
71
71
71
71
63
63
63
63
63
63
3
3
3
3
3
3
23

Low Clouds (% Sky Obscured)

99
99
99
99
99
20
20
20
20
20
20
28
28
28
28
28
28
0
0
0
0
0
0
20

Medium Clouds (% Sky Obscured)

24
24
24
24
24
9
9
9
9
9
9
13
13
13
13
13
13
3
3
3
3
3
3
9

High Clouds (% Sky Obscured)

2
2
2
2
2
64
64
64
64
64
64
50
50
50
50
50
50
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
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
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
None
None
None
None
None
None
None

Precipitation Probability (%)

7
2
0
0
0
0
0
0
0
0
0
0
6
14
19
15
6
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.12
0.03
0
0
0
0
0
0
0
0
0
0
0.01
0.07
0.11
0.07
0.01
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
14
14
13
13
12
12
12
12
12
12
12
12
12
12
12
13
14
14
14
13
12

Relative Humidity (%)

76
71
69
72
77
82
86
91
96
99
100
100
100
100
100
100
100
100
98
96
90
84
75
66

Pressure (mb)

1014
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1014
1015
1015
1015
1015
1015
1014
1014
1014
1015
1015
1014
1014

Ozone (du)

273
275
276
277
278
279
279
279
280
281
283
285
286
287
288
288
287
286
284
282
280
279
278
278

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

Generated: 20/09/21 14:14:02. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00