Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:29

06:59

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

Sun - Rise: 06:52, Set: 19:09, Transit: 12:59. Moon - Rise: 19:29, Set: 06:59. Civil Dark: 19:42 - 06:19. Nautical Dark: 20:21 - 05:40. Astro Dark: 21:03 - 04:59

Total Clouds (% Sky Obscured)

1
2
0
0
0
0
99
100
95
11
20
71
34
47
91
2
59
93
96
92
93
94
100
100

Low Clouds (% Sky Obscured)

1
2
0
0
0
0
0
0
0
2
4
6
1
2
0
0
1
2
3
2
38
59
100
99

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)

0
0
0
0
0
0
99
100
95
9
16
70
34
46
91
2
58
93
96
92
89
84
88
95

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
1
1
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
2
2
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
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
10
8
8
7
6
6
6
6
5
4
4
4
4
4
4
4
4
5
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
53
56
62
68
73
79
86
89
91
94
94
94
94
95
96
95
90
85
78
74
70
66
62

Pressure (mb)

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

Ozone (du)

300
298
295
293
295
294
293
293
292
291
286
286
285
285
286
286
284
284
284
284
284
283
281
280

Tuesday 21

Full Moon 99%

19:43

08:12

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: 06:54, Set: 19:06, Transit: 12:59. Moon - Rise: 19:43, Set: 08:12. Civil Dark: 19:39 - 06:21. Nautical Dark: 20:19 - 05:41. Astro Dark: 21:00 - 05:00

Total Clouds (% Sky Obscured)

100
100
100
98
85
92
95
87
95
87
64
59
65
74
87
92
100
100
100
99
82
100
98
100

Low Clouds (% Sky Obscured)

100
99
100
50
15
6
1
1
0
0
0
0
1
13
48
66
100
100
100
99
82
100
98
100

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)

96
96
94
95
83
92
95
87
95
87
64
59
64
70
74
74
45
22
23
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
1
5
48
45
100
100
95
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
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
6
7
7
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
12
12
12
12
12
12
12
12
12
12
12
12
11
11
11
10
10
11
11
12
12
12
12

Relative Humidity (%)

59
59
62
67
72
78
85
89
93
96
98
99
100
100
100
100
99
95
89
82
76
70
66
62

Pressure (mb)

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

Ozone (du)

279
278
277
276
274
273
274
274
274
274
274
274
274
274
274
274
275
275
274
274
274
274
274
274

Wednesday 22

Waning Gibbous 96%

19:57

09:24

15 Bad
16 Bad
17 Good
18 OK
19 OK
20 Good
21 OK
22 Bad
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

Sun - Rise: 06:55, Set: 19:04, Transit: 12:59. Moon - Rise: 19:57, Set: 09:24. Civil Dark: 19:37 - 06:22. Nautical Dark: 20:16 - 05:43. Astro Dark: 20:57 - 05:02

Total Clouds (% Sky Obscured)

100
78
6
35
24
8
41
59
18
20
21
23
20
45
65
59
100
100
100
100
100
100
65
65

Low Clouds (% Sky Obscured)

100
78
6
35
24
8
14
43
18
18
20
16
20
45
51
53
99
99
99
99
99
99
63
63

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
31
27
0
2
2
9
0
0
26
15
65
65
65
65
65
65
5
5

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
2
2
2
2
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.02
0.01
0.01
0

Wind Speed/Direction (mph)

9
9
9
8
8
8
8
7
7
7
8
8
8
9
9
9
10
11
12
14
16
17
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
13
13
12
12
12
12
12
12
12
12
12
12
12
12
11
11
12
12
13
13
13
12

Relative Humidity (%)

60
61
65
71
76
82
87
91
95
98
100
100
100
100
100
100
95
92
89
86
82
77
69
62

Pressure (mb)

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

Ozone (du)

274
273
273
273
271
271
270
271
272
274
275
276
275
274
274
275
279
279
279
278
277
276
275
275

Thursday 23

Waning Gibbous 91%

20:11

10:35

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 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Bad
14 Bad

Sun - Rise: 06:57, Set: 19:02, Transit: 12:58. Moon - Rise: 20:11, Set: 10:35. Civil Dark: 19:35 - 06:24. Nautical Dark: 20:14 - 05:45. Astro Dark: 20:55 - 05:04

Total Clouds (% Sky Obscured)

65
65
65
65
0
0
0
0
0
0
0
0
0
0
0
0
9
9
9
9
9
9
93
93

Low Clouds (% Sky Obscured)

63
63
63
63
0
0
0
0
0
0
0
0
0
0
0
0
4
4
4
4
4
4
93
93

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
4
4
4
4
0
0

High Clouds (% Sky Obscured)

5
5
5
5
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
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

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
62
67
72
76
83
87
91
96
97
98
99
99
100
100
100
100
95
91
84
80
75
70
67

Pressure (mb)

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

Ozone (du)

276
275
275
276
276
276
277
277
277
276
274
273
272
272
271
270
273
273
272
271
271
270
268
268

Friday 24

Waning Gibbous 84%

20:27

11:46

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

Sun - Rise: 06:59, Set: 18:59, Transit: 12:58. Moon - Rise: 20:27, Set: 11:46. Civil Dark: 19:33 - 06:26. Nautical Dark: 20:12 - 05:46. Astro Dark: 20:52 - 05:06

Total Clouds (% Sky Obscured)

93
93
93
93
41
41
41
41
41
41
0
0
0
0
0
0
2
2
2
2
2
2
71
71

Low Clouds (% Sky Obscured)

93
93
93
93
41
41
41
41
41
41
0
0
0
0
0
0
2
2
2
2
2
2
71
71

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)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
2
0
0
0
0
0
0
0
0
0
2
3
3
4
5
5
4
3
2
0
0
0

Precipitation Amount (mm)

0
0
0.01
0
0
0
0
0
0
0
0
0
0.01
0.02
0.02
0.03
0.04
0.03
0.01
0.01
0.01
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
70
75
80
85
91
94
100
100
100
100
100
100
100
100
100
100
97
95
92
87
82
76
72

Pressure (mb)

1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

267
267
267
267
265
264
264
264
264
263
267
267
266
265
265
265
264
264
264
264
264
266
267
269

Saturday 25

Waning Gibbous 76%

20:47

12:56

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: 07:00, Set: 18:57, Transit: 12:58. Moon - Rise: 20:47, Set: 12:56. Civil Dark: 19:30 - 06:27. Nautical Dark: 20:09 - 05:48. Astro Dark: 20:50 - 05:08

Total Clouds (% Sky Obscured)

71
71
71
71
63
63
63
63
63
63
97
97
97
97
97
97
94
94
94
94
94
94
98
98

Low Clouds (% Sky Obscured)

71
71
71
71
1
1
1
1
1
1
13
13
13
13
13
13
4
4
4
4
4
4
98
98

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
26
26
26
26
26
26
87
87
87
87
87
87
15
15

High Clouds (% Sky Obscured)

1
1
1
1
63
63
63
63
63
63
95
95
95
95
95
95
73
73
73
73
73
73
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

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

Precipitation Probability (%)

0
1
1
1
2
1
0
0
0
0
0
0
0
4
12
24
29
30
21
10
5
3
2
0

Precipitation Amount (mm)

0
0.01
0.01
0.02
0.03
0.02
0
0
0
0
0
0
0
0.01
0.08
0.29
0.45
0.36
0.18
0.08
0.04
0.02
0.01
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
75
78
82
84
89
93
97
100
100
100
100
100
100
100
100
100
100
99
96
92
84
75
68

Pressure (mb)

1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

271
273
275
277
279
279
279
279
280
280
280
279
277
275
275
274
274
272
271
270
271
273
274
275

Sunday 26

Waning Gibbous 68%

21:11

14:03

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

Sun - Rise: 07:02, Set: 18:55, Transit: 12:57. Moon - Rise: 21:11, Set: 14:03. Civil Dark: 19:28 - 06:29. Nautical Dark: 20:07 - 05:50. Astro Dark: 20:47 - 05:10

Total Clouds (% Sky Obscured)

98
98
98
98
97
97
97
97
97
97
100
100
100
100
100
100
17
17
17
17
17
17
31
31

Low Clouds (% Sky Obscured)

98
98
98
98
31
31
31
31
31
31
100
100
100
100
100
100
1
1
1
1
1
1
25
25

Medium Clouds (% Sky Obscured)

15
15
15
15
6
6
6
6
6
6
95
95
95
95
95
95
17
17
17
17
17
17
20
20

High Clouds (% Sky Obscured)

0
0
0
0
96
96
96
96
96
96
90
90
90
90
90
90
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
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
4
5
4
0
0
0
7
10
13
15
14
7
3
1
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.01
0.02
0.01
0
0
0
0.02
0.05
0.08
0.11
0.12
0.06
0.02
0.01
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
65
70
78
83
88
93
95
100
100
100
100
100
100
100
100
100
98
96
91
85
77
69
67

Pressure (mb)

1013
1012
1013
1013
1014
1014
1015
1014
1015
1015
1015
1015
1014
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

276
277
278
279
280
281
282
283
285
288
290
289
288
287
285
284
282
281
280
280
280
281
281
281

Forecast for Marlborough, Wiltshire, UK (51.42,-1.73)

Generated: 20/09/21 15:05:17. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00