Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 22

Waxing Gibbous 76%

13:53

04:57

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

Sun - Rise: 05:52, Set: 20:16, Transit: 13:05. Moon - Rise: 13:53, Set: 04:57. Civil Dark: 20:53 - 05:15. Nautical Dark: 21:39 - 04:28. Astro Dark: 22:33 - 03:33

Total Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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 (%)

1
1
1
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
0.01
0.01
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
10
10
10
10
9
9
8
9
9
8
8
8
8
8
9
11
13
14
14
15
14

Chance of Frost

Temperature (°C)

13
15
15
15
15
13
11
8
6
5
4
3
2
1
1
-0
-1
0
3
6
9
11
13
14

Feels Like (°C)

13
15
15
15
15
13
11
6
3
2
0
-1
-1
-2
-3
-4
-5
-4
-1
2
6
11
13
14

Dew Point (°C)

2
2
2
2
3
2
0
-2
-3
-4
-4
-3
-2
-1
-1
-1
-1
-1
0
2
2
3
2
2

Relative Humidity (%)

45
42
41
41
44
46
48
49
50
54
59
67
75
82
87
92
95
91
81
72
64
56
49
45

Pressure (mb)

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

Ozone (du)

349
346
347
346
343
340
339
339
340
338
338
347
346
345
343
340
339
341
343
344
344
343
342
341

Friday 23

Waxing Gibbous 85%

15:15

05:16

14 Good
15 Good
16 Good
17 Good
18 OK
19 Good
20 Good
21 OK
22 Bad
23 Bad
00 Good
01 Good
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: 05:50, Set: 20:18, Transit: 13:05. Moon - Rise: 15:15, Set: 05:16. Civil Dark: 20:54 - 05:13. Nautical Dark: 21:41 - 04:26. Astro Dark: 22:36 - 03:30

Total Clouds (% Sky Obscured)

0
0
0
1
31
0
0
16
69
56
3
2
99
98
98
96
97
94
92
97
88
91
90
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
4
0
0
2

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
1
31
0
0
16
69
56
3
2
99
98
98
96
97
94
92
97
88
91
90
91

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
1

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
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
17
17
16
14
11
9
7
5
5
4
4
3
2
2
1
2
4
7
9
11
13
14

Feels Like (°C)

15
16
17
17
16
14
11
6
4
2
1
1
-0
-1
-1
-2
-3
-2
0
3
6
11
13
14

Dew Point (°C)

2
3
3
3
2
1
-0
-2
-3
-3
-1
-0
0
1
1
1
0
1
2
3
3
3
4
3

Relative Humidity (%)

42
40
38
40
40
42
45
48
51
56
65
74
80
84
88
92
95
94
86
76
68
60
55
49

Pressure (mb)

1026
1026
1026
1025
1025
1026
1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027

Ozone (du)

338
335
330
327
325
331
329
326
325
323
321
321
319
317
314
313
312
313
314
315
315
316
318
314

Saturday 24

Waxing Gibbous 93%

16:40

05:34

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 Good

Sun - Rise: 05:48, Set: 20:19, Transit: 13:04. Moon - Rise: 16:40, Set: 05:34. Civil Dark: 20:56 - 05:11. Nautical Dark: 21:43 - 04:23. Astro Dark: 22:39 - 03:27

Total Clouds (% Sky Obscured)

94
80
81
89
84
71
70
81
85
89
93
92
92
92
92
92
92
100
100
100
100
100
100
8

Low Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
100
100
100
100
100
100
8

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)

93
80
81
89
84
71
70
81
85
89
93
92
92
92
92
92
92
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)

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

Chance of Frost

Temperature (°C)

15
16
16
15
15
13
12
10
8
7
6
5
4
3
2
2
1
2
4
6
8
9
11
12

Feels Like (°C)

15
16
16
15
15
13
12
10
5
3
2
1
-0
-1
-2
-3
-4
-3
-1
1
4
6
11
12

Dew Point (°C)

3
4
4
4
4
4
3
2
2
2
2
2
2
2
2
2
1
2
2
2
2
3
3
3

Relative Humidity (%)

46
44
44
48
50
53
56
58
62
68
76
81
87
93
98
100
100
98
89
79
70
63
57
55

Pressure (mb)

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

Ozone (du)

313
313
312
311
311
317
317
317
317
318
318
309
308
308
309
310
311
314
316
321
330
338
340
340

Sunday 25

Waxing Gibbous 98%

18:06

05:51

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

Sun - Rise: 05:46, Set: 20:21, Transit: 13:04. Moon - Rise: 18:06, Set: 05:51. Civil Dark: 20:58 - 05:09. Nautical Dark: 21:46 - 04:21. Astro Dark: 22:42 - 03:23

Total Clouds (% Sky Obscured)

8
8
8
8
8
95
95
95
95
95
95
0
0
0
0
0
0
13
13
13
13
13
13
20

Low Clouds (% Sky Obscured)

8
8
8
8
8
0
0
0
0
0
0
0
0
0
0
0
0
13
13
13
13
13
13
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
95
95
95
95
95
95
0
0
0
0
0
0
0
0
0
0
0
0
20

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 (%)

1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
16
15
15
13
11
9
6
5
3
2
1
1
-0
-1
-1
-0
2
5
8
10
11
13

Feels Like (°C)

14
15
16
15
15
13
11
5
3
1
-1
-2
-3
-4
-5
-5
-6
-4
-2
2
5
7
11
13

Dew Point (°C)

4
4
4
4
4
4
3
2
1
1
1
1
1
1
-0
-1
-1
-0
1
2
2
3
3
3

Relative Humidity (%)

50
47
45
47
49
54
58
63
70
79
87
91
97
100
100
100
100
100
92
79
69
61
56
52

Pressure (mb)

1027
1026
1026
1025
1025
1024
1025
1025
1026
1026
1026
1025
1024
1024
1023
1023
1023
1022
1022
1021
1020
1020
1019
1019

Ozone (du)

342
344
346
348
350
353
354
355
356
357
359
361
362
363
364
363
361
361
361
360
360
359
357
359

Monday 26

Waxing Gibbous 100%

19:35

06:11

14 OK
15 OK
16 OK
17 OK
18 Good
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: 05:44, Set: 20:23, Transit: 13:04. Moon - Rise: 19:35, Set: 06:11. Civil Dark: 21:00 - 05:07. Nautical Dark: 21:48 - 04:18. Astro Dark: 22:45 - 03:20

Total Clouds (% Sky Obscured)

20
20
20
20
20
99
99
99
99
99
99
90
90
90
90
90
90
96
96
96
96
96
96
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
4
4
4
4
4
4
95
95
95
95
95
95
99

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
90
90
90
90
90
90
88
88
88
88
88
88
88

High Clouds (% Sky Obscured)

20
20
20
20
20
99
99
99
99
99
99
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
1
1
2
2
1
0
0
0
0
0
2
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
10
10
10
9
9
9
8
8
9
10
11
12
12
13
13
14
15
17
18
18
19
19

Chance of Frost

Temperature (°C)

14
15
15
14
14
13
11
10
9
7
6
6
5
5
5
4
4
5
6
7
9
10
11
12

Feels Like (°C)

14
15
15
14
14
13
11
8
6
5
3
3
2
1
1
0
0
0
2
3
5
10
11
12

Dew Point (°C)

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

Relative Humidity (%)

48
47
48
52
57
65
69
71
75
82
90
90
95
99
100
100
100
99
93
83
75
67
62
55

Pressure (mb)

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

Ozone (du)

360
361
363
367
370
366
371
380
388
402
417
440
446
443
438
432
424
417
413
410
409
408
409
409

Tuesday 27

Full Moon 99%

21:06

06:35

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: 05:42, Set: 20:24, Transit: 13:04. Moon - Rise: 21:06, Set: 06:35. Civil Dark: 21:02 - 05:04. Nautical Dark: 21:50 - 04:16. Astro Dark: 22:49 - 03:16

Total Clouds (% Sky Obscured)

99
99
99
99
99
66
66
66
66
66
66
79
79
79
79
79
79
50
50
50
50
50
50
98

Low Clouds (% Sky Obscured)

99
99
99
99
99
52
52
52
52
52
52
71
71
71
71
71
71
31
31
31
31
31
31
97

Medium Clouds (% Sky Obscured)

88
88
88
88
88
57
57
57
57
57
57
66
66
66
66
66
66
41
41
41
41
41
41
84

High Clouds (% Sky Obscured)

0
0
0
0
0
4
4
4
4
4
4
0
0
0
0
0
0
2
2
2
2
2
2
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
1
1
2
2
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
13
13
12
11
9
8
7
6
5
5
4
4
4
4
4
4
5
7
8
8
9
9

Feels Like (°C)

13
14
13
13
12
11
6
5
3
2
1
1
0
-0
-0
-1
-1
-0
1
3
4
5
6
6

Dew Point (°C)

3
2
2
2
3
3
2
2
2
2
3
3
4
4
4
4
4
4
5
5
5
5
5
4

Relative Humidity (%)

49
45
46
49
54
58
62
65
70
76
84
91
97
100
100
100
100
100
99
90
84
79
76
72

Pressure (mb)

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

Ozone (du)

408
407
406
402
399
397
400
406
411
414
416
418
420
422
422
419
415
410
406
401
396
392
388
386

Wednesday 28

Waning Gibbous 94%

22:38

07:05

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
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: 05:40, Set: 20:26, Transit: 13:04. Moon - Rise: 22:38, Set: 07:05. Civil Dark: 21:04 - 05:02. Nautical Dark: 21:52 - 04:13. Astro Dark: 22:52 - 03:13

Total Clouds (% Sky Obscured)

98
98
98
98
98
49
49
49
49
49
49
99
99
99
99
99
99
99
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

97
97
97
97
97
44
44
44
44
44
44
71
71
71
71
71
71
93
93
93
93
93
93
91

Medium Clouds (% Sky Obscured)

84
84
84
84
84
31
31
31
31
31
31
9
9
9
9
9
9
2
2
2
2
2
2
19

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
98
98
98
98
98
98
94
94
94
94
94
94
95

ISS Passover

Visibility (miles)

10
10
9
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

2
2
3
4
6
6
3
1
1
0
0
0
0
0
1
1
2
4
6
12
12
6
2
1

Precipitation Amount (mm)

0.02
0.03
0.05
0.07
0.1
0.11
0.08
0.03
0.01
0
0
0
0
0
0.01
0.01
0.02
0.02
0.04
0.07
0.08
0.05
0.02
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
12
12
11
7
6
4
3
2
1
1
0
-0
-1
-1
-0
0
1
3
5
6
11
12

Dew Point (°C)

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

Relative Humidity (%)

65
59
57
59
63
68
71
73
76
83
91
98
100
100
100
100
100
100
100
100
93
83
70
61

Pressure (mb)

1013
1013
1013
1013
1013
1013
1014
1014
1015
1016
1015
1015
1015
1016
1016
1015
1015
1015
1016
1016
1016
1016
1016
1016

Ozone (du)

385
385
385
385
385
384
384
382
381
380
379
378
378
379
380
380
380
379
378
377
376
374
371
369

Forecast for Swindon, Wiltshire, UK (51.56,-1.78)

Generated: 22/04/21 13:28:23. Forecast: 22/04/21 to 28/04/21. Timezone: UTC+1.00