Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 16

Waxing Gibbous 98%

18:53

03:47

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

Sun - Rise: 06:38, Set: 19:11, Transit: 12:55. Moon - Rise: 18:53, Set: 03:47. Civil Dark: 19:45 - 06:05. Nautical Dark: 20:25 - 05:24. Astro Dark: 21:08 - 04:42

Total Clouds (% Sky Obscured)

98
97
90
82
76
74
43
66
53
68
71
61
83
75
94
28
11
16
29
78
36
39
9
31

Low Clouds (% Sky Obscured)

69
27
24
19
16
12
6
24
19
19
22
19
17
16
21
0
0
0
0
16
0
0
4
7

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)

84
74
63
70
68
71
55
60
48
67
68
45
84
81
90
48
21
28
58
79
59
65
10
34

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
92
93
93
88
81
75
66
58
51
47
45
45
47
54
63
70
76
79
83
88
93
96

Pressure (mb)

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

Ozone (du)

284
283
283
280
278
277
278
278
278
278
277
276
276
275
275
275
275
274
274
273
273
272
272
273

Tuesday 17

Waxing Gibbous 100%

19:06

05:21

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

Sun - Rise: 06:40, Set: 19:09, Transit: 12:54. Moon - Rise: 19:06, Set: 05:21. Civil Dark: 19:43 - 06:06. Nautical Dark: 20:23 - 05:26. Astro Dark: 21:05 - 04:44

Total Clouds (% Sky Obscured)

53
61
80
54
27
53
78
50
70
85
61
62
53
54
46
16
10
7
40
19
19
30
36
39

Low Clouds (% Sky Obscured)

9
10
15
21
17
10
11
17
24
35
18
21
12
13
12
0
0
0
31
14
17
25
33
35

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)

75
54
85
59
16
55
76
46
37
36
36
35
35
35
30
18
12
7
4
4
3
0
0
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
96
95
93
86
76
67
60
55
52
49
48
52
58
65
73
80
84
90
92
95
96

Pressure (mb)

1031
1031
1031
1031
1032
1032
1032
1031
1031
1031
1030
1030
1029
1029
1029
1029
1029
1029
1030
1030
1030
1029
1029
1029

Ozone (du)

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

Wednesday 18

Full Moon 99%

19:19

06:53

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

Sun - Rise: 06:42, Set: 19:07, Transit: 12:54. Moon - Rise: 19:19, Set: 06:53. Civil Dark: 19:40 - 06:08. Nautical Dark: 20:20 - 05:28. Astro Dark: 21:02 - 04:46

Total Clouds (% Sky Obscured)

41
46
49
53
55
63
62
43
32
27
30
32
23
18
18
16
17
27
34
34
49
61
72
75

Low Clouds (% Sky Obscured)

36
40
42
46
49
52
47
28
23
22
23
24
19
16
18
17
17
24
28
28
35
42
56
58

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)

1
2
2
2
2
2
2
5
2
2
2
2
0
0
0
0
0
0
0
0
2
2
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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)

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

Chance of Frost

Temperature (°C)

11
12
12
12
12
13
14
16
18
20
21
22
23
23
22
21
19
17
16
15
15
14
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
96
93
84
75
66
59
53
50
49
49
53
58
64
71
79
86
90
93
96
96

Pressure (mb)

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

Ozone (du)

273
273
274
274
274
274
274
274
274
274
273
274
275
276
277
278
279
281
283
285
286
286
286
287

Thursday 19

Waning Gibbous 94%

19:32

08:26

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

Sun - Rise: 06:43, Set: 19:04, Transit: 12:54. Moon - Rise: 19:32, Set: 08:26. Civil Dark: 19:38 - 06:10. Nautical Dark: 20:18 - 05:30. Astro Dark: 21:00 - 04:48

Total Clouds (% Sky Obscured)

81
85
87
87
81
67
64
53
46
37
24
13
1
0
0
0
18
37
55
61
71
81
75
69

Low Clouds (% Sky Obscured)

64
66
71
71
62
48
39
35
30
28
19
9
2
0
0
0
17
39
59
69
74
84
75
68

Medium Clouds (% Sky Obscured)

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

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)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
1
8
0
0
0
3
2
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)

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

Chance of Frost

Temperature (°C)

14
14
14
14
14
15
17
18
20
21
22
23
23
24
23
21
20
18
17
16
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
96
96
93
83
73
62
52
47
42
39
38
41
49
58
69
79
89
95
95
96
95

Pressure (mb)

1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1023
1023
1023
1023
1023
1024
1024
1023
1023
1023

Ozone (du)

287
287
287
287
286
287
287
288
291
294
295
296
298
299
298
298
296
297
299
300
299
298
299
298

Friday 20

Waning Gibbous 92%

19:47

09:59

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

Sun - Rise: 06:45, Set: 19:02, Transit: 12:53. Moon - Rise: 19:47, Set: 09:59. Civil Dark: 19:35 - 06:11. Nautical Dark: 20:15 - 05:32. Astro Dark: 20:57 - 04:50

Total Clouds (% Sky Obscured)

61
83
47
40
44
49
53
50
46
78
46
66
50
42
35
34
35
39
36
57
79
100
95
90

Low Clouds (% Sky Obscured)

52
43
36
36
35
33
36
38
43
76
45
60
42
40
41
40
33
31
30
31
33
33
24
21

Medium Clouds (% Sky Obscured)

3
44
2
0
3
6
9
8
6
4
9
15
20
13
7
0
41
38
39
41
41
45
37
27

High Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
3
7
10
40
69
100
85
70

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
Very Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
2
2
1
18
24
27
33
27
26
22
17
8
10
14
17
47
66
82
71
58

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
92
93
93
86
73
60
51
45
52
49
49
51
56
62
70
73
75
79
82
84
87
87

Pressure (mb)

1023
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1019
1020
1020
1020
1019
1019
1019
1019
1019
1019
1018

Ozone (du)

298
299
302
303
304
305
305
306
306
304
304
304
303
303
303
302
300
300
300
300
299
297
296
296

Saturday 21

Waning Gibbous 87%

20:06

11:33

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
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

Sun - Rise: 06:46, Set: 19:00, Transit: 12:53. Moon - Rise: 20:06, Set: 11:33. Civil Dark: 19:33 - 06:13. Nautical Dark: 20:13 - 05:33. Astro Dark: 20:54 - 04:52

Total Clouds (% Sky Obscured)

85
85
86
88
84
83
80
86
92
99
84
70
56
56
58
60
63
66
70
72
74
73
70
70

Low Clouds (% Sky Obscured)

24
25
29
36
29
22
15
16
17
18
16
20
20
24
29
32
32
29
27
34
43
51
50
42

Medium Clouds (% Sky Obscured)

19
16
14
10
6
3
1
6
11
16
15
15
13
14
18
25
24
21
16
32
46
55
52
45

High Clouds (% Sky Obscured)

58
61
60
65
70
70
65
70
79
90
70
46
28
38
49
64
78
84
86
83
78
74
69
69

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

36
35
27
4
5
4
0
2
3
3
9
11
11
19
23
22
37
42
36
55
66
69
77
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.7
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
89
89
89
82
77
70
62
56
50
48
46
43
48
54
59
64
71
77
79
83
86
86

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

296
296
295
294
293
293
292
292
293
293
294
294
294
295
295
294
294
294
294
294
294
293
293
293

Sunday 22

Waning Gibbous 78%

20:33

13:05

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

Sun - Rise: 06:48, Set: 18:57, Transit: 12:53. Moon - Rise: 20:33, Set: 13:05. Civil Dark: 19:31 - 06:15. Nautical Dark: 20:10 - 05:35. Astro Dark: 20:52 - 04:54

Total Clouds (% Sky Obscured)

71
79
88
96
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

36
48
58
72
71
70
69
65
59
46
52
59
70
73
77
79
79
77
77
82
87
91

Medium Clouds (% Sky Obscured)

39
29
23
13
24
35
43
63
79
95
96
98
100
99
99
99
99
99
100
97
94
90

High Clouds (% Sky Obscured)

74
81
88
96
97
98
100
98
96
94
96
97
99
99
100
100
100
100
100
83
67
55

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None

Precipitation Probability (%)

61
77
85
85
89
92
95
95
95
92
95
95
95
95
95
95
95
95
95
95
95
77

Precipitation Amount (mm)

0.4
0.5
0.5
0.4
0.5
0.5
0.5
0.8
0.9
0.7
0.9
1.1
1.3
1.4
1.5
1.5
1.3
1.1
1.1
0.9
0.6
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
15
14
15
14
13
13
13
13
13
13
20
20
20
19
18
18
16
16
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

87
89
90
92
92
84
79
73
66
60
54
62
72
81
82
85
86
87
90
92
90
90

Pressure (mb)

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

Ozone (du)

293
293
293
293
293
293
292
292
292
292
291
292
293
294
294
294
294
294
293
293
292
291

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 16/09/24 03:09:29. Forecast: 16/09/24 to 22/09/24. Timezone: UTC+1.00