Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:39

07:11

15 OK
16 Good
17 Good
18 Good
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Good
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: 19:19, Transit: 13:10. Moon - Rise: 19:39, Set: 07:11. Civil Dark: 19:52 - 06:31. Nautical Dark: 20:30 - 05:52. Astro Dark: 21:11 - 05:12

Total Clouds (% Sky Obscured)

17
0
0
0
83
100
100
98
99
49
99
97
84
0
62
49
75
82
96
94
92
95
97
99

Low Clouds (% Sky Obscured)

17
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
8
13
0
0
2
3
55
88

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
83
100
100
98
99
49
99
97
84
0
62
49
73
81
96
94
91
95
93
93

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
2
4
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
None
None
None
None

Precipitation Probability (%)

0
0
0
0
9
12
14
15
15
13
0
0
0
4
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.08
0.11
0.13
0.14
0.12
0.1
0
0
0
0.01
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
12
11
9
8
7
7
7
7
7
6
6
6
6
6
5
5
5
4
4
4
4
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
64
68
72
78
81
85
91
95
96
97
97
97
96
98
98
96
92
87
82
78
74
72
69

Pressure (mb)

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

Ozone (du)

295
294
293
291
294
294
294
294
294
292
288
288
288
288
289
289
284
284
284
284
283
281
278
278

Tuesday 21

Full Moon 99%

19:54

08:23

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
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: 07:05, Set: 19:17, Transit: 13:10. Moon - Rise: 19:54, Set: 08:23. Civil Dark: 19:49 - 06:32. Nautical Dark: 20:28 - 05:54. Astro Dark: 21:08 - 05:14

Total Clouds (% Sky Obscured)

100
100
100
95
64
45
41
46
73
89
100
98
100
100
100
100
100
100
100
91
84
99
100
98

Low Clouds (% Sky Obscured)

100
100
95
30
36
34
34
23
55
84
100
98
100
100
100
100
100
100
100
91
84
99
100
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)

89
93
94
94
48
16
12
30
48
30
6
5
7
2
9
18
13
5
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
1
0
52
84
100
98
100
100
100
100
100
100
45
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
5
5
5
4
4
3
3
3
3
3
2
2
2
2
2
2
3
3
4
4
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
70
72
76
82
83
86
91
95
96
97
99
100
100
100
100
99
96
90
88
82
78
72
68

Pressure (mb)

1030
1030
1030
1030
1031
1031
1031
1031
1031
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1030
1029
1029
1029
1028

Ozone (du)

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

Wednesday 22

Waning Gibbous 96%

20:09

09:34

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

Sun - Rise: 07:06, Set: 19:15, Transit: 13:09. Moon - Rise: 20:09, Set: 09:34. Civil Dark: 19:47 - 06:34. Nautical Dark: 20:26 - 05:55. Astro Dark: 21:06 - 05:16

Total Clouds (% Sky Obscured)

98
77
68
54
42
20
31
42
13
13
34
35
49
82
88
95
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
77
68
54
42
20
31
42
13
13
34
35
49
82
88
95
100
100
100
100
100
100
100
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
38
38

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
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
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
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

Precipitation Probability (%)

0
0
0
0
0
0
4
4
4
4
5
5
6
8
8
9
9
10
9
8
5
4
4
4

Precipitation Amount (mm)

0
0
0
0
0
0
0.01
0.03
0.02
0.02
0.02
0.02
0.03
0.04
0.05
0.06
0.06
0.07
0.07
0.06
0.05
0.05
0.04
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
69
72
78
84
87
89
93
97
99
100
100
100
100
100
100
97
94
90
87
87
82
78
76

Pressure (mb)

1028
1027
1027
1027
1027
1027
1027
1027
1027
1026
1025
1025
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1021

Ozone (du)

275
275
275
275
271
270
270
271
273
274
276
276
274
274
274
274
277
277
275
274
274
274
274
274

Thursday 23

Waning Gibbous 91%

20:24

10:44

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

Sun - Rise: 07:08, Set: 19:12, Transit: 13:09. Moon - Rise: 20:24, Set: 10:44. Civil Dark: 19:45 - 06:35. Nautical Dark: 20:23 - 05:57. Astro Dark: 21:03 - 05:17

Total Clouds (% Sky Obscured)

100
100
100
100
7
7
7
7
7
7
27
27
27
27
27
27
55
55
55
55
55
55
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
7
7
7
7
7
7
27
27
27
27
27
27
55
55
55
55
55
55
100
100

Medium Clouds (% Sky Obscured)

38
38
38
38
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
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 (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
13
12
10
9
7
6
6
5
4
5
4
4
4
4
4
3
3
5
7
8
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
78
81
86
88
88
89
92
98
100
100
100
100
100
100
100
100
96
91
89
84
79
75
72

Pressure (mb)

1021
1021
1021
1020
1021
1021
1022
1022
1022
1021
1021
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

274
275
275
275
274
274
274
274
274
274
271
271
270
270
269
270
273
274
273
272
272
272
271
270

Friday 24

Waning Gibbous 84%

20:41

11:54

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

Sun - Rise: 07:09, Set: 19:10, Transit: 13:09. Moon - Rise: 20:41, Set: 11:54. Civil Dark: 19:43 - 06:37. Nautical Dark: 20:21 - 05:59. Astro Dark: 21:01 - 05:19

Total Clouds (% Sky Obscured)

100
100
100
100
92
92
92
92
92
92
16
16
16
16
16
16
11
11
11
11
11
11
81
81

Low Clouds (% Sky Obscured)

100
100
100
100
92
92
92
92
92
92
5
5
5
5
5
5
11
11
11
11
11
11
81
81

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
11
11
11
11
11
11
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
9
8
5
0
3
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

2
2
3
3
3
3
2
2
2
2
3
4
6
8
9
9
7
5
5
4
2
2
0
0

Precipitation Amount (mm)

0.01
0.02
0.02
0.03
0.03
0.03
0.03
0.02
0.01
0.02
0.02
0.03
0.05
0.08
0.09
0.09
0.06
0.03
0.01
0.01
0.01
0.01
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
14
14
15
15
15
15
16
16
16
16
16
16
16
16
15
15
15
15
16
15

Relative Humidity (%)

75
78
82
88
93
96
97
100
100
100
100
100
100
100
100
100
100
97
94
92
89
84
80
76

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1015
1015
1014
1015
1015
1015
1014
1014
1014
1015
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

270
270
270
271
268
267
266
267
267
267
266
265
265
265
266
266
273
274
275
275
276
276
277
277

Saturday 25

Waning Gibbous 76%

21:01

13:03

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

Sun - Rise: 07:11, Set: 19:08, Transit: 13:08. Moon - Rise: 21:01, Set: 13:03. Civil Dark: 19:40 - 06:38. Nautical Dark: 20:19 - 06:00. Astro Dark: 20:58 - 05:21

Total Clouds (% Sky Obscured)

81
81
81
81
93
93
93
93
93
93
98
98
98
98
98
98
100
100
100
100
100
100
78
78

Low Clouds (% Sky Obscured)

81
81
81
81
27
27
27
27
27
27
77
77
77
77
77
77
100
100
100
100
100
100
59
59

Medium Clouds (% Sky Obscured)

0
0
0
0
3
3
3
3
3
3
63
63
63
63
63
63
13
13
13
13
13
13
2
2

High Clouds (% Sky Obscured)

0
0
0
0
91
91
91
91
91
91
77
77
77
77
77
77
0
0
0
0
0
0
68
68

ISS Passover

Visibility (miles)

10
10
10
10
10
10
8
5
4
3
3
6
9
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
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
2
4
6
6
4
0
5
6
6
6
6
5
5
6
7
6
5
5
5
5
5
4

Precipitation Amount (mm)

0
0
0.01
0.03
0.05
0.03
0.01
0
0.01
0.02
0.03
0.03
0.01
0.01
0.01
0.03
0.04
0.03
0.01
0.01
0.02
0.04
0.07
0.07

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
19
18
18
17
17
16
16
16
16
16
16
16
16
16
16
16
17
17
18
18
18
19

Dew Point (°C)

16
16
16
17
16
16
16
16
15
15
15
15
15
15
15
15
15
15
16
16
16
15
15
15

Relative Humidity (%)

77
80
84
91
94
97
100
100
100
100
100
100
100
100
100
100
100
99
95
94
90
86
82
80

Pressure (mb)

1016
1016
1015
1016
1016
1016
1015
1016
1015
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

278
278
279
279
279
279
280
280
281
282
283
284
287
288
286
283
281
279
278
278
278
279
279
278

Sunday 26

Waning Gibbous 68%

21:26

14:10

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

Sun - Rise: 07:12, Set: 19:06, Transit: 13:08. Moon - Rise: 21:26, Set: 14:10. Civil Dark: 19:38 - 06:40. Nautical Dark: 20:16 - 06:02. Astro Dark: 20:56 - 05:23

Total Clouds (% Sky Obscured)

78
78
78
78
95
95
95
95
95
95
15
15
15
15
15
15
16
16
16
16
16
16
23
23

Low Clouds (% Sky Obscured)

59
59
59
59
83
83
83
83
83
83
4
4
4
4
4
4
15
15
15
15
15
15
13
13

Medium Clouds (% Sky Obscured)

2
2
2
2
81
81
81
81
81
81
14
14
14
14
14
14
9
9
9
9
9
9
21
21

High Clouds (% Sky Obscured)

68
68
68
68
38
38
38
38
38
38
0
0
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
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
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
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 (%)

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

Precipitation Amount (mm)

0.06
0.06
0.06
0.07
0.08
0.06
0.04
0.04
0.07
0.14
0.19
0.15
0.08
0.05
0.05
0.08
0.12
0.12
0.13
0.16
0.22
0.29
0.3
0.16

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
84
89
95
98
99
98
100
100
100
100
100
100
100
100
100
99
97
95
90
87
84
79
78

Pressure (mb)

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

Ozone (du)

277
277
278
280
281
280
278
277
276
276
276
276
277
277
277
276
276
275
274
274
274
274
274
273

Forecast for Upton Cross, Cornwall, UK (50.54,-4.43)

Generated: 20/09/21 15:50:39. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00