Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:38

07:07

15 OK
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: 19:17, Transit: 13:07. Moon - Rise: 19:38, Set: 07:07. Civil Dark: 19:51 - 06:26. Nautical Dark: 20:31 - 05:46. Astro Dark: 21:13 - 05:04

Total Clouds (% Sky Obscured)

46
63
51
98
100
100
100
100
100
97
100
98
96
100
99
94
97
97
98
98
99
99
99
99

Low Clouds (% Sky Obscured)

46
63
18
2
6
22
16
2
4
8
16
23
30
26
9
13
16
55
84
71
82
83
87
80

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
38
98
100
100
100
100
100
97
100
97
95
100
99
93
96
93
91
95
97
96
97
98

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
2
2
2
3
9
16
23
21
2
2
0
2
2
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
4
0
0
0
0
0
0
0
0
3
4
4
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
69
71
75
82
84
89
93
95
97
95
97
97
97
99
98
96
95
90
88
82
76
74
72

Pressure (mb)

1025
1026
1026
1026
1026
1027
1028
1028
1028
1028
1029
1029
1029
1029
1029
1030
1030
1031
1030
1030
1030
1030
1030
1030

Ozone (du)

289
287
286
285
289
289
290
291
291
289
284
283
284
284
283
283
280
280
280
280
279
279
275
274

Tuesday 21

Full Moon 99%

19:51

08:21

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

Sun - Rise: 07:02, Set: 19:14, Transit: 13:07. Moon - Rise: 19:51, Set: 08:21. Civil Dark: 19:48 - 06:28. Nautical Dark: 20:28 - 05:48. Astro Dark: 21:10 - 05:06

Total Clouds (% Sky Obscured)

97
95
85
93
96
96
95
95
94
93
77
27
34
100
100
100
100
100
99
85
64
76
62
56

Low Clouds (% Sky Obscured)

15
6
0
2
13
17
15
13
6
2
4
5
31
100
100
100
100
100
99
85
64
76
62
56

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)

97
94
85
93
95
95
95
94
94
93
77
23
5
3
0
45
39
35
1
1
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
8
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
1
2
24
48
100
100
100
100
55
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
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
3
3
2
0
0
0
2
4
5
6
6
5
4
3
2
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
70
73
78
85
89
93
96
98
99
99
100
100
100
100
98
94
91
90
89
85
80
76
74

Pressure (mb)

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

Ozone (du)

275
275
275
275
273
273
272
273
272
272
273
272
272
271
271
271
270
270
270
270
270
270
274
274

Wednesday 22

Waning Gibbous 96%

20:04

09:34

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
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: 07:03, Set: 19:12, Transit: 13:06. Moon - Rise: 20:04, Set: 09:34. Civil Dark: 19:46 - 06:29. Nautical Dark: 20:26 - 05:49. Astro Dark: 21:08 - 05:08

Total Clouds (% Sky Obscured)

71
52
67
51
58
45
58
99
98
98
93
92
100
100
100
100
100
100
100
100
100
100
95
95

Low Clouds (% Sky Obscured)

71
52
67
50
56
32
49
99
98
98
91
92
100
100
100
100
99
99
99
99
99
99
83
83

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
2
1
2
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
3
20
16
0
0
0
23
1
5
67
84
76
52
52
52
52
52
52
73
73

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
9
3
3
4
4
4
5
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
18
2
1
0
0
17
24
13
13
13
13
13
13
13
13

Precipitation Type

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
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
3
4
10
14
16
14
11
8
6
5
0
0
0
0
0
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.01
0.03
0.06
0.09
0.13
0.13
0.11
0.07
0.05
0.02
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
75
80
84
86
87
89
91
93
97
100
100
100
100
100
100
94
92
90
87
83
77
76

Pressure (mb)

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

Ozone (du)

273
273
273
274
273
274
274
278
278
276
274
274
274
274
273
273
276
276
276
276
276
275
275
275

Thursday 23

Waning Gibbous 91%

20:18

10:46

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

Sun - Rise: 07:05, Set: 19:10, Transit: 13:06. Moon - Rise: 20:18, Set: 10:46. Civil Dark: 19:43 - 06:31. Nautical Dark: 20:23 - 05:51. Astro Dark: 21:05 - 05:10

Total Clouds (% Sky Obscured)

95
95
95
95
14
14
14
14
14
14
40
40
40
40
40
40
100
100
100
100
100
100
41
41

Low Clouds (% Sky Obscured)

83
83
83
83
14
14
14
14
14
14
40
40
40
40
40
40
100
100
100
100
100
100
29
29

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)

73
73
73
73
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
17

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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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 (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
77
80
80
85
85
86
91
93
95
96
98
98
98
98
97
97
94
93
92
92
90
87
85

Pressure (mb)

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

Ozone (du)

275
275
275
275
274
274
273
272
272
271
271
269
268
267
267
267
269
270
269
268
268
268
264
263

Friday 24

Waning Gibbous 84%

20:33

11:58

15 OK
16 OK
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: 07:07, Set: 19:07, Transit: 13:06. Moon - Rise: 20:33, Set: 11:58. Civil Dark: 19:41 - 06:33. Nautical Dark: 20:21 - 05:53. Astro Dark: 21:02 - 05:12

Total Clouds (% Sky Obscured)

41
41
41
41
95
95
95
95
95
95
100
100
100
100
100
100
100
100
100
100
100
100
91
91

Low Clouds (% Sky Obscured)

29
29
29
29
15
15
15
15
15
15
100
100
100
100
100
100
100
100
100
100
100
100
91
91

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
5
5
5
5
5
5
0
0
0
0
0
0
20
20

High Clouds (% Sky Obscured)

17
17
17
17
94
94
94
94
94
94
76
76
76
76
76
76
1
1
1
1
1
1
6
6

ISS Passover

Visibility (miles)

10
10
10
10
10
6
6
6
4
2
0
2
6
9
7
4
10
10
10
10
10
10
10
10

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

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

Precipitation Probability (%)

3
4
4
6
8
9
8
8
9
11
21
19
10
7
10
14
19
11
5
3
3
3
3
3

Precipitation Amount (mm)

0.03
0.04
0.05
0.07
0.09
0.09
0.07
0.07
0.08
0.11
0.18
0.15
0.1
0.08
0.11
0.18
0.2
0.11
0.03
0.01
0.01
0.02
0.03
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
14
13
13
14
14
14
14
15
15
15
15
14
14
14
14
13
13
14
14
14
14

Relative Humidity (%)

84
85
90
93
94
96
100
100
100
100
100
100
100
100
100
100
100
99
97
96
95
92
90
89

Pressure (mb)

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

Ozone (du)

262
261
261
262
258
256
256
256
256
256
255
256
257
259
261
263
262
262
262
262
263
264
266
268

Saturday 25

Waning Gibbous 76%

20:51

13:08

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

Sun - Rise: 07:08, Set: 19:05, Transit: 13:05. Moon - Rise: 20:51, Set: 13:08. Civil Dark: 19:39 - 06:34. Nautical Dark: 20:18 - 05:55. Astro Dark: 21:00 - 05:14

Total Clouds (% Sky Obscured)

91
91
91
91
74
74
74
74
74
74
34
34
34
34
34
34
99
99
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

91
91
91
91
74
74
74
74
74
74
25
25
25
25
25
25
99
99
99
99
99
99
98
98

Medium Clouds (% Sky Obscured)

20
20
20
20
0
0
0
0
0
0
0
0
0
0
0
0
27
27
27
27
27
27
2
2

High Clouds (% Sky Obscured)

6
6
6
6
0
0
0
0
0
0
13
13
13
13
13
13
48
48
48
48
48
48
79
79

ISS Passover

Visibility (miles)

10
10
10
10
10
10
4
0
2
5
9
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

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

Precipitation Probability (%)

4
4
4
4
3
4
5
6
5
5
5
5
6
7
9
9
8
8
6
6
10
17
32
30

Precipitation Amount (mm)

0.03
0.03
0.02
0.01
0.01
0.01
0.03
0.04
0.03
0.02
0.03
0.03
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.06
0.16
0.26
0.28

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
92
94
97
99
100
100
100
100
100
100
100
100
100
100
100
100
98
97
98
99
100
100
100

Pressure (mb)

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

Ozone (du)

269
271
272
274
275
276
276
277
278
278
278
278
278
278
278
277
276
276
275
274
273
273
272
272

Sunday 26

Waning Gibbous 68%

21:14

14:17

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: 07:10, Set: 19:02, Transit: 13:05. Moon - Rise: 21:14, Set: 14:17. Civil Dark: 19:36 - 06:36. Nautical Dark: 20:16 - 05:56. Astro Dark: 20:57 - 05:16

Total Clouds (% Sky Obscured)

99
99
99
99
99
99
99
99
99
99
87
87
87
87
87
87
99
99
99
99
99
99
73
73

Low Clouds (% Sky Obscured)

98
98
98
98
51
51
51
51
51
51
82
82
82
82
82
82
98
98
98
98
98
98
46
46

Medium Clouds (% Sky Obscured)

2
2
2
2
88
88
88
88
88
88
77
77
77
77
77
77
57
57
57
57
57
57
28
28

High Clouds (% Sky Obscured)

79
79
79
79
96
96
96
96
96
96
0
0
0
0
0
0
0
0
0
0
0
0
56
56

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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

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
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
Light Rain

Precipitation Probability (%)

28
23
18
15
11
8
6
5
5
6
7
8
8
9
10
11
13
15
16
15
15
17
16
14

Precipitation Amount (mm)

0.32
0.36
0.28
0.16
0.1
0.06
0.04
0.03
0.03
0.03
0.04
0.05
0.05
0.06
0.06
0.06
0.07
0.12
0.21
0.31
0.39
0.48
0.51
0.47

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
92
89
86
84

Pressure (mb)

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

Ozone (du)

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

Forecast for Rhayader LD6 5HF, UK (52.27,-3.69)

Generated: 20/09/21 15:47:08. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00