Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:30

07:04

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

Sun - Rise: 06:56, Set: 19:11, Transit: 13:02. Moon - Rise: 19:30, Set: 07:04. Civil Dark: 19:43 - 06:24. Nautical Dark: 20:21 - 05:46. Astro Dark: 21:00 - 05:07

Total Clouds (% Sky Obscured)

3
0
0
0
0
0
2
5
18
20
15
86
44
6
0
9
3
0
3
0
0
31
67
36

Low Clouds (% Sky Obscured)

3
0
0
0
0
0
2
5
18
16
6
20
15
0
0
3
3
0
0
0
0
0
0
0

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
3
10
82
34
6
0
6
0
0
3
0
0
31
67
36

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

Precipitation Probability (%)

5
5
4
2
0
14
10
8
5
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.02
0
0.01
0.01
0
0.16
0.14
0.08
0.05
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
67
66
65
66
70
72
74
76
79
84
86
87
87
86
85
84
81
80
79
76
72
69
65

Pressure (mb)

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

Ozone (du)

304
303
302
303
304
306
305
302
300
299
298
293
291
290
288
288
288
284
284
284
284
285
286
282

Tuesday 21

Full Moon 99%

19:46

08:15

14 Good
15 OK
16 Good
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 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good

Sun - Rise: 06:57, Set: 19:09, Transit: 13:02. Moon - Rise: 19:46, Set: 08:15. Civil Dark: 19:41 - 06:25. Nautical Dark: 20:19 - 05:48. Astro Dark: 20:58 - 05:09

Total Clouds (% Sky Obscured)

0
31
0
76
92
95
93
95
95
97
95
98
98
98
96
89
16
14
15
11
10
6
0
0

Low Clouds (% Sky Obscured)

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

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
31
0
76
92
95
93
95
95
97
95
98
98
98
96
89
16
14
13
10
10
6
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)

8
8
9
9
8
7
7
6
6
5
5
4
3
3
3
3
4
5
5
5
5
4
3
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
65
65
66
66
69
71
74
77
80
84
87
88
87
86
85
83
81
78
76
72
68
67
67

Pressure (mb)

1030
1030
1029
1029
1029
1030
1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1028
1028
1029
1029
1029
1029
1029
1028

Ozone (du)

281
281
281
280
280
279
279
279
279
278
278
280
279
278
277
278
278
278
277
277
278
278
278
277

Wednesday 22

Waning Gibbous 96%

20:02

09:25

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

Sun - Rise: 06:59, Set: 19:07, Transit: 13:02. Moon - Rise: 20:02, Set: 09:25. Civil Dark: 19:39 - 06:27. Nautical Dark: 20:16 - 05:49. Astro Dark: 20:55 - 05:11

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
23
6
28
40
34
27
30
30
30
30
30
30
5

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
23
6
28
40
34
27
30
30
30
30
30
30
5

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
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)

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

Chance of Frost

Temperature (°C)

17
17
17
17
17
17
17
16
16
16
16
15
15
15
15
15
15
16
16
16
17
17
17
18

Feels Like (°C)

17
17
17
17
17
17
17
16
16
16
16
15
15
15
15
15
15
16
16
16
17
17
17
18

Dew Point (°C)

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

Relative Humidity (%)

67
67
68
69
70
72
72
74
75
79
84
91
93
92
92
91
89
87
85
83
79
76
76
78

Pressure (mb)

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

Ozone (du)

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

Thursday 23

Waning Gibbous 91%

20:18

10:34

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

Sun - Rise: 07:00, Set: 19:05, Transit: 13:01. Moon - Rise: 20:18, Set: 10:34. Civil Dark: 19:37 - 06:28. Nautical Dark: 20:14 - 05:51. Astro Dark: 20:53 - 05:12

Total Clouds (% Sky Obscured)

5
5
5
5
5
36
36
36
36
36
36
100
100
100
100
100
100
22
22
22
22
22
22
51

Low Clouds (% Sky Obscured)

5
5
5
5
5
36
36
36
36
36
36
100
100
100
100
100
100
22
22
22
22
22
22
51

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
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
0
0
0
0
0
0
0
0
2
2
2
0
0
0
0
2
2
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
85
83
83
83
84
86
86
87
90
93
94
94
93
91
89
88
87
87
84
82
81
81

Pressure (mb)

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

Ozone (du)

275
274
274
273
273
274
275
275
276
276
276
274
274
273
272
273
273
275
275
274
273
273
273
274

Friday 24

Waning Gibbous 84%

20:36

11:43

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Good
20 Good
21 Good
22 OK
23 OK
00 OK
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: 07:02, Set: 19:03, Transit: 13:01. Moon - Rise: 20:36, Set: 11:43. Civil Dark: 19:34 - 06:30. Nautical Dark: 20:12 - 05:52. Astro Dark: 20:50 - 05:14

Total Clouds (% Sky Obscured)

51
51
51
51
51
14
14
14
14
14
14
27
27
27
27
27
27
56
56
56
56
56
56
31

Low Clouds (% Sky Obscured)

51
51
51
51
51
14
14
14
14
14
14
27
27
27
27
27
27
56
56
56
56
56
56
5

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
4

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
26

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.03
0.09
0.13
0.09
0.03
0.01
0.01
0.02
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
17
17
17
17
16
16
16
16
15
15
15
15
15
16
16
16
16
17
17
18
18
18

Feels Like (°C)

17
17
17
17
17
17
16
16
16
16
15
16
16
16
16
16
16
16
17
17
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

82
83
83
83
84
85
86
87
88
90
92
98
99
99
98
98
98
98
97
96
93
90
90
90

Pressure (mb)

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

Ozone (du)

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

Saturday 25

Waning Gibbous 76%

20:57

12:50

14 OK
15 OK
16 OK
17 OK
18 OK
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 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:03, Set: 19:00, Transit: 13:01. Moon - Rise: 20:57, Set: 12:50. Civil Dark: 19:32 - 06:31. Nautical Dark: 20:10 - 05:54. Astro Dark: 20:48 - 05:16

Total Clouds (% Sky Obscured)

31
31
31
31
31
98
98
98
98
98
98
70
70
70
70
70
70
30
30
30
30
30
30
96

Low Clouds (% Sky Obscured)

5
5
5
5
5
0
0
0
0
0
0
2
2
2
2
2
2
24
24
24
24
24
24
91

Medium Clouds (% Sky Obscured)

4
4
4
4
4
15
15
15
15
15
15
45
45
45
45
45
45
19
19
19
19
19
19
6

High Clouds (% Sky Obscured)

26
26
26
26
26
98
98
98
98
98
98
55
55
55
55
55
55
0
0
0
0
0
0
52

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

3
0
0
0
0
0
0
0
0
2
3
3
3
3
3
3
4
4
4
6
12
30
49
52

Precipitation Amount (mm)

0.01
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.05
0.21
0.58
0.83

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
17
17
17
17
17
17
16
16
16
15
15
15
15
16
16
16
17
17
17
17
17
17

Feels Like (°C)

18
18
18
18
18
17
17
17
17
16
16
16
15
15
16
16
16
17
17
17
18
17
17
17

Dew Point (°C)

16
16
16
16
16
16
16
15
15
15
15
15
15
15
15
16
16
16
16
16
16
15
15
15

Relative Humidity (%)

90
91
91
90
90
90
91
92
93
94
96
100
100
100
100
99
98
97
96
95
91
89
88
88

Pressure (mb)

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

Ozone (du)

271
271
272
273
274
275
276
277
277
278
278
279
279
280
281
281
281
280
280
280
279
278
276
274

Sunday 26

Waning Gibbous 68%

21:23

13:56

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

Sun - Rise: 07:05, Set: 18:58, Transit: 13:00. Moon - Rise: 21:23, Set: 13:56. Civil Dark: 19:30 - 06:33. Nautical Dark: 20:07 - 05:56. Astro Dark: 20:46 - 05:17

Total Clouds (% Sky Obscured)

96
96
96
96
96
99
99
99
99
99
99
100
100
100
100
100
100
20
20
20
20
20
20
33

Low Clouds (% Sky Obscured)

91
91
91
91
91
8
8
8
8
8
8
100
100
100
100
100
100
17
17
17
17
17
17
9

Medium Clouds (% Sky Obscured)

6
6
6
6
6
23
23
23
23
23
23
99
99
99
99
99
99
14
14
14
14
14
14
12

High Clouds (% Sky Obscured)

52
52
52
52
52
98
98
98
98
98
98
26
26
26
26
26
26
0
0
0
0
0
0
22

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

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

Precipitation Probability (%)

45
31
11
5
5
6
6
7
8
5
0
0
0
4
5
4
2
0
0
0
0
5
12
15

Precipitation Amount (mm)

0.6
0.25
0.07
0.03
0.03
0.05
0.06
0.06
0.06
0.03
0
0
0
0.02
0.04
0.02
0.01
0
0
0
0
0.03
0.16
0.31

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
87
87
86
85
85
85
86
89
92
97
99
99
97
96
93
91
89
87
84
82
81
81

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

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

Forecast for Guernsey (49.46,-2.53)

Generated: 20/09/21 14:48:23. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00