Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:50

07:15

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: 07:08, Set: 19:26, Transit: 13:16. Moon - Rise: 19:50, Set: 07:15. Civil Dark: 20:02 - 06:33. Nautical Dark: 20:45 - 05:50. Astro Dark: 21:30 - 05:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
100
97
96
93
97
99
95
96
98
99
99
99
98

Low Clouds (% Sky Obscured)

100
37
66
28
16
31
65
82
71
29
31
17
6
4
7
61
87
32
7
7
46
73
56
9

Medium Clouds (% Sky Obscured)

6
4
1
4
4
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
99
100
100
99
100
98
100
97
96
92
94
95
94
96
98
98
98
98
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
0
0
0
0
0
0
0
0
2
35
50
1
1
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
4
2
2
3
3
0
0
0
3
3
2
2
0
0
0
0
0
0
3
3
3
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
69
69
70
72
76
80
83
86
91
93
94
96
97
99
100
99
97
94
89
86
83
78
74

Pressure (mb)

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

Ozone (du)

287
287
287
288
289
291
291
290
287
287
286
284
283
282
282
282
282
281
281
282
282
282
282
279

Tuesday 21

Full Moon 99%

20:01

08:31

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

Sun - Rise: 07:10, Set: 19:24, Transit: 13:16. Moon - Rise: 20:01, Set: 08:31. Civil Dark: 19:59 - 06:35. Nautical Dark: 20:42 - 05:52. Astro Dark: 21:27 - 05:07

Total Clouds (% Sky Obscured)

98
91
82
63
56
45
16
10
13
9
3
2
3
13
17
33
22
12
23
20
23
50
98
98

Low Clouds (% Sky Obscured)

2
1
34
11
29
45
16
10
13
9
3
2
3
13
17
33
22
12
23
20
23
48
55
41

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
51
88

High Clouds (% Sky Obscured)

98
91
72
58
38
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
94
92

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
1
1
1
0
0
0
1
1
3
3
4
4
4
4
4
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
72
75
78
81
84
85
86
89
90
91
92
93
93
92
91
90
89
87
84
82
79
75

Pressure (mb)

1027
1027
1027
1026
1026
1026
1026
1025
1026
1025
1024
1025
1024
1024
1024
1023
1023
1024
1023
1023
1023
1022
1022
1022

Ozone (du)

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

Wednesday 22

Waning Gibbous 96%

20:11

09:47

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: 07:12, Set: 19:21, Transit: 13:15. Moon - Rise: 20:11, Set: 09:47. Civil Dark: 19:57 - 06:36. Nautical Dark: 20:39 - 05:54. Astro Dark: 21:24 - 05:09

Total Clouds (% Sky Obscured)

77
81
100
100
100
100
100
100
100
95
95
87
95
95
93
95
98
94
94
94
94
94
94
100

Low Clouds (% Sky Obscured)

3
2
100
100
100
100
100
100
100
38
8
17
13
15
13
31
79
63
63
63
63
63
63
100

Medium Clouds (% Sky Obscured)

66
81
12
100
100
100
93
57
18
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

32
0
34
76
89
83
88
77
59
91
95
84
95
94
92
93
88
84
84
84
84
84
84
46

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

Precipitation Probability (%)

5
12
16
15
12
14
19
4
5
6
8
7
0
0
0
0
0
3
4
6
4
4
4
3

Precipitation Amount (mm)

0.02
0.1
0.17
0.14
0.09
0.1
0.17
0.02
0.03
0.01
0.01
0.01
0
0
0
0
0
0.01
0.02
0.04
0.04
0.03
0.03
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
78
82
84
85
86
86
88
92
93
94
95
95
95
95
94
92
92
90
87
83
79
74

Pressure (mb)

1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1016
1016
1016
1015
1015
1016
1016
1016
1017

Ozone (du)

275
274
276
277
278
280
281
281
280
281
283
285
284
283
283
282
281
283
283
282
282
282
282
279

Thursday 23

Waning Gibbous 91%

20:22

11:02

14 Bad
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

Sun - Rise: 07:14, Set: 19:19, Transit: 13:15. Moon - Rise: 20:22, Set: 11:02. Civil Dark: 19:54 - 06:38. Nautical Dark: 20:37 - 05:56. Astro Dark: 21:21 - 05:12

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
26
26
26
26
26
26
100
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
16
16
16
16
16
16
100
100
100
100
100
100
97

Medium Clouds (% Sky Obscured)

0
0
0
0
0
6
6
6
6
6
6
14
14
14
14
14
14
3
3
3
3
3
3
0

High Clouds (% Sky Obscured)

46
46
46
46
46
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 (%)

2
1
2
2
3
3
3
3
2
0
0
0
2
2
2
2
2
0
0
0
0
0
1
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
11
12
10
10
10
10
11
12
12
12
13
13
12
13
13
13
13
14
15
15

Relative Humidity (%)

71
70
74
75
77
84
84
85
86
88
91
93
94
94
96
95
94
93
92
91
88
88
89
82

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1014
1013
1013
1012
1012
1011
1011
1011
1010
1010
1009
1009
1008

Ozone (du)

278
277
276
274
273
273
272
270
270
268
267
262
262
263
262
261
260
261
260
259
258
257
257
258

Friday 24

Waning Gibbous 84%

20:34

12:17

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: 07:16, Set: 19:16, Transit: 13:15. Moon - Rise: 20:34, Set: 12:17. Civil Dark: 19:52 - 06:40. Nautical Dark: 20:34 - 05:58. Astro Dark: 21:18 - 05:14

Total Clouds (% Sky Obscured)

97
97
97
97
97
53
53
53
53
53
53
100
100
100
100
100
100
96
96
96
96
96
96
99

Low Clouds (% Sky Obscured)

97
97
97
97
97
38
38
38
38
38
38
100
100
100
100
100
100
90
90
90
90
90
90
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
73

High Clouds (% Sky Obscured)

0
0
0
0
0
24
24
24
24
24
24
6
6
6
6
6
6
66
66
66
66
66
66
19

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
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

3
3
3
3
3
4
5
5
5
3
0
0
0
0
0
1
2
4
4
4
5
6
6
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
79
80
84
89
90
90
91
92
94
95
96
95
95
96
97
97
95
93
94
94
90
88

Pressure (mb)

1008
1008
1008
1007
1007
1007
1007
1007
1008
1007
1007
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

258
257
257
257
257
256
257
258
259
260
260
263
263
264
264
265
266
266
266
266
266
266
266
267

Saturday 25

Waning Gibbous 76%

20:50

13:31

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: 07:18, Set: 19:14, Transit: 13:14. Moon - Rise: 20:50, Set: 13:31. Civil Dark: 19:49 - 06:42. Nautical Dark: 20:31 - 06:00. Astro Dark: 21:15 - 05:16

Total Clouds (% Sky Obscured)

99
99
99
99
99
58
58
58
58
58
58
54
54
54
54
54
54
77
77
77
77
77
77
97

Low Clouds (% Sky Obscured)

99
99
99
99
99
38
38
38
38
38
38
9
9
9
9
9
9
77
77
77
77
77
77
91

Medium Clouds (% Sky Obscured)

73
73
73
73
73
22
22
22
22
22
22
52
52
52
52
52
52
0
0
0
0
0
0
6

High Clouds (% Sky Obscured)

19
19
19
19
19
31
31
31
31
31
31
0
0
0
0
0
0
0
0
0
0
0
0
59

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

Precipitation Probability (%)

5
4
4
4
5
6
5
4
3
3
4
4
4
4
3
3
3
4
4
4
5
4
4
4

Precipitation Amount (mm)

0.09
0.09
0.1
0.11
0.12
0.12
0.09
0.06
0.03
0.02
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.03
0.02
0.01
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
88
88
89
90
91
91
91
93
96
98
98
98
98
97
97
96
95
94
91
87
81
74

Pressure (mb)

1007
1007
1007
1006
1006
1006
1006
1007
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1006
1006
1006

Ozone (du)

268
269
271
271
270
270
271
273
274
277
279
281
283
285
287
288
290
292
295
298
300
300
299
298

Sunday 26

Waning Gibbous 68%

21:10

No Set

14 Bad
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 OK

Sun - Rise: 07:19, Set: 19:11, Transit: 13:14. Moon - Rise: 21:10, Set: No Set. Civil Dark: 19:47 - 06:44. Nautical Dark: 20:29 - 06:02. Astro Dark: 21:13 - 05:18

Total Clouds (% Sky Obscured)

97
97
97
97
97
99
99
99
99
99
99
13
13
13
13
13
13
91
91
91
91
91
91
30

Low Clouds (% Sky Obscured)

91
91
91
91
91
97
97
97
97
97
97
6
6
6
6
6
6
23
23
23
23
23
23
15

Medium Clouds (% Sky Obscured)

6
6
6
6
6
94
94
94
94
94
94
12
12
12
12
12
12
52
52
52
52
52
52
25

High Clouds (% Sky Obscured)

59
59
59
59
59
59
59
59
59
59
59
0
0
0
0
0
0
86
86
86
86
86
86
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

5
6
8
8
8
7
10
24
28
30
31
31
31
31
31
33
35
36
35
34
31
29
26
21

Precipitation Amount (mm)

0.03
0.06
0.08
0.09
0.08
0.06
0.1
0.35
0.67
0.7
0.57
0.45
0.37
0.29
0.31
0.53
0.96
1.29
1.23
1
0.83
0.8
0.78
0.64

Wind Speed/Direction (mph)

19
19
18
17
16
15
13
11
10
9
8
7
6
5
4
4
5
5
6
6
7
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
17
16
15
14
14
13
12
11
11
10
9
9
9
9
8
8
8
9
11
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

74
76
80
83
85
87
91
92
94
97
100
100
100
100
100
100
100
100
100
100
97
92
84
80

Pressure (mb)

1006
1006
1006
1006
1006
1007
1007
1008
1008
1009
1009
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1012

Ozone (du)

297
296
296
299
304
308
310
311
312
313
313
313
311
307
305
303
303
302
302
301
301
301
301
301

Forecast for Belfast, Belfast, UK (54.60,-5.93)

Generated: 20/09/21 14:26:18. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00