Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 11%

07:39

22:46

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

Sun - Rise: 05:22, Set: 18:53, Transit: 12:08. Moon - Rise: 07:39, Set: 22:46. Civil Dark: 19:21 - 04:53. Nautical Dark: 19:56 - 04:19. Astro Dark: 20:32 - 03:42

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
3
0
5
45
53
55

Low 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

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
1
1
0
1
0
3
0
5
18
19
18

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 (%)

6
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)

11
15
15
14
14
15
13
11
9
5
4
3
3
2
3
3
3
3
3
3
3
4
4
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

13
12
12
11
11
10
11
13
15
21
22
21
21
22
23
23
23
23
23
23
24
24
16
11

Pressure (mb)

1018
1016
1015
1014
1012
1012
1011
1012
1012
1013
1015
1015
1016
1016
1016
1016
1016
1016
1016
1015
1016
1015
1015
1015

Ozone (du)

407
403
404
404
401
399
400
399
396
394
390
384
383
384
383
380
374
372
372
371
371
370
371
368

Tuesday 21

Waxing Crescent 20%

08:44

23:55

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK

Sun - Rise: 05:20, Set: 18:54, Transit: 12:08. Moon - Rise: 08:44, Set: 23:55. Civil Dark: 19:23 - 04:52. Nautical Dark: 19:57 - 04:17. Astro Dark: 20:34 - 03:40

Total Clouds (% Sky Obscured)

50
57
74
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
76
72
57
25
22

Low 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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
33
45
52
34
39
35
29
9
0
4
7
15
9
3
0
0
0

High Clouds (% Sky Obscured)

15
20
55
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
53
55
57
24
22

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)

6
8
9
10
10
9
9
9
7
6
5
4
4
3
3
3
3
2
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

17
18
18
19
19
19
19
18
16
13
12
11
10
10
9
9
9
8
8
8
8
11
13
15

Feels Like (°C)

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

Dew Point (°C)

-15
-14
-12
-11
-11
-12
-12
-11
-7
-5
-3
-1
1
2
2
2
1
1
0
-0
-1
-1
-2
-4

Relative Humidity (%)

10
10
11
12
12
11
11
13
20
28
35
45
53
60
62
60
58
60
60
57
55
45
34
27

Pressure (mb)

1014
1014
1013
1013
1012
1011
1011
1011
1011
1012
1013
1013
1013
1014
1014
1013
1013
1013
1013
1013
1014
1014
1013
1014

Ozone (du)

366
362
361
358
356
358
357
354
352
352
355
355
358
358
360
364
367
371
375
378
375
376
379
380

Wednesday 22

Waxing Crescent 31%

09:56

00:51

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

Sun - Rise: 05:19, Set: 18:55, Transit: 12:08. Moon - Rise: 09:56, Set: 00:51. Civil Dark: 19:24 - 04:50. Nautical Dark: 19:58 - 04:15. Astro Dark: 20:35 - 03:38

Total Clouds (% Sky Obscured)

26
29
31
26
20
38
50
37
41
38
47
54
41
52
91
83
75
75
73
71
76
68
51
38

Low Clouds (% Sky Obscured)

0
4
23
26
20
38
33
23
8
0
11
18
22
20
16
14
18
26
13
12
7
0
0
0

Medium Clouds (% Sky Obscured)

0
0
31
26
17
38
50
17
13
10
3
4
11
52
80
83
75
75
73
71
76
68
51
36

High Clouds (% Sky Obscured)

20
23
31
26
20
38
50
30
41
38
47
53
41
46
90
68
55
34
8
10
19
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
2
9
11
14
1
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)

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

Chance of Frost

Temperature (°C)

17
18
19
19
19
19
19
17
16
13
12
12
12
10
9
9
8
8
7
7
8
11
15
18

Feels Like (°C)

15
16
16
16
17
16
16
14
14
12
11
10
10
10
8
7
7
8
7
8
8
12
15
18

Dew Point (°C)

-4
-5
-4
-4
-5
-5
-4
-3
-1
-1
-0
-0
1
2
2
3
3
4
4
4
4
4
2
-1

Relative Humidity (%)

24
21
21
21
19
18
21
25
31
40
43
42
46
55
60
64
70
75
79
84
79
61
42
27

Pressure (mb)

1013
1013
1012
1011
1011
1010
1010
1010
1010
1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1010

Ozone (du)

379
376
375
376
375
375
376
378
378
381
385
386
390
391
392
395
396
390
385
383
385
388
389
389

Thursday 23

Waxing Crescent 42%

09:56

01:35

10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 OK
17 OK
18 OK
19 OK
20 Bad
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

Sun - Rise: 05:18, Set: 18:56, Transit: 12:08. Moon - Rise: 09:56, Set: 01:35. Civil Dark: 19:25 - 04:49. Nautical Dark: 20:00 - 04:14. Astro Dark: 20:37 - 03:37

Total Clouds (% Sky Obscured)

18
14
10
5
7
10
24
38
47
41
49
29
54
66
80
94
78
60
52
79
85
89
78
68

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
11
14
5
4
2
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

17
12
5
0
2
3
9
9
13
17
34
13
6
11
35
34
54
56
48
67
73
89
57
61

High Clouds (% Sky Obscured)

0
2
4
5
5
4
7
7
6
3
0
1
5
34
62
90
60
30
1
16
28
40
28
21

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)

6
7
7
8
8
7
7
8
6
4
3
4
4
3
3
3
3
3
3
2
1
2
2
2

Chance of Frost

Temperature (°C)

20
21
22
23
23
22
22
21
18
16
14
14
13
13
13
12
11
11
10
10
11
12
14
16

Feels Like (°C)

19
19
20
20
21
20
20
16
15
13
12
12
12
11
11
10
10
9
9
9
10
11
13
15

Dew Point (°C)

-7
-8
-9
-9
-9
-8
-7
-4
-1
-1
-1
-1
-0
1
3
4
5
5
6
6
7
7
7
7

Relative Humidity (%)

16
13
12
11
11
12
14
19
27
32
34
34
39
45
50
57
63
67
74
78
76
67
60
54

Pressure (mb)

1010
1009
1009
1008
1008
1007
1007
1007
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010

Ozone (du)

388
388
389
391
394
396
396
398
397
400
401
400
401
399
401
402
404
405
406
407
407
409
412
415

Friday 24

First Quarter 54%

11:11

02:09

10 Bad
11 Bad
12 Good
13 Good
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
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

Sun - Rise: 05:16, Set: 18:57, Transit: 12:07. Moon - Rise: 11:11, Set: 02:09. Civil Dark: 19:26 - 04:47. Nautical Dark: 20:01 - 04:12. Astro Dark: 20:38 - 03:35

Total Clouds (% Sky Obscured)

58
66
6
2
15
17
9
11
13
15
52
68
83
73
62
57
89
96
100
98
96
94
89
84

Low Clouds (% Sky Obscured)

0
0
0
0
3
3
0
0
0
2
1
2
0
6
19
30
0
0
0
5
11
29
29
9

Medium Clouds (% Sky Obscured)

5
3
0
0
2
3
5
3
2
0
0
0
0
15
30
45
60
35
15
9
0
0
15
31

High Clouds (% Sky Obscured)

10
5
0
0
15
17
9
11
13
6
38
64
83
62
31
3
89
95
100
68
36
5
3
6

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
2
6
1
8
9
17
14
9
16
11
5
0
0
0
0
0
0
0
3
4
1
3
3

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)

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

Chance of Frost

Temperature (°C)

18
20
22
22
22
22
21
20
19
15
14
13
13
13
13
12
12
12
12
12
13
14
16
16

Feels Like (°C)

17
19
20
22
21
20
20
19
18
16
15
14
14
14
14
13
13
12
12
12
11
11
10
14

Dew Point (°C)

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

Relative Humidity (%)

46
41
35
31
30
33
38
38
45
58
64
68
66
65
66
67
66
70
72
75
70
66
61
55

Pressure (mb)

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

Ozone (du)

420
424
427
427
424
426
428
431
429
424
423
423
421
420
418
416
415
414
412
410
408
406
404
402

Saturday 25

Waxing Gibbous 65%

12:24

02:37

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:15, Set: 18:58, Transit: 12:07. Moon - Rise: 12:24, Set: 02:37. Civil Dark: 19:27 - 04:46. Nautical Dark: 20:02 - 04:11. Astro Dark: 20:40 - 03:33

Total Clouds (% Sky Obscured)

83
93
97
100
100
100
100
100
100
100
100
100
100
83
66
50
36
31
38
42
31
10
5
5

Low Clouds (% Sky Obscured)

6
10
29
35
47
64
59
75
87
100
74
52
2
2
2
7
25
31
38
42
31
10
5
5

Medium Clouds (% Sky Obscured)

45
53
61
71
80
89
98
98
99
99
99
100
100
83
63
50
36
31
38
42
31
10
5
5

High Clouds (% Sky Obscured)

19
46
73
100
100
100
100
100
100
100
100
100
100
68
37
5
5
5
5
5
5
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
5
4
6
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

2
2
2
0
1
1
0
14
25
35
68
86
95
84
79
70
81
93
95
95
95
95
90
59

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.5
0.8
1
0.6
0.5
0.3
0.4
0.5
0.7
1.2
1.4
1.4
0.7
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
43
42
40
40
40
39
39
43
47
51
60
71
83
84
87
88
90
91
91
88
84
81
73

Pressure (mb)

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

Ozone (du)

401
400
400
400
400
397
395
392
391
389
387
387
388
388
388
387
386
385
384
382
382
382
382
385

Sunday 26

Waxing Gibbous 75%

13:33

03:01

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

Sun - Rise: 05:14, Set: 18:59, Transit: 12:07. Moon - Rise: 13:33, Set: 03:01. Civil Dark: 19:28 - 04:44. Nautical Dark: 20:03 - 04:09. Astro Dark: 20:41 - 03:31

Total Clouds (% Sky Obscured)

5
18
37
55
59
63
67
47
27
7
5
2
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

5
18
19
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
18
37
50
53
52
40
23
12
2
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

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

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

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

15
13
6
0
4
4
1
2
1
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

Wind Speed/Direction (mph)

9
10
11
11
12
11
10
9
7
5
3
2
2
2
2
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

12
13
14
14
15
15
15
15
13
11
10
9
9
8
8
7
6
6
6
6
8
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
58
49
40
33
30
28
26
30
35
42
42
42
42
48
53
59
63
66
68
63
58

Pressure (mb)

1013
1013
1013
1013
1012
1012
1012
1012
1013
1014
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016

Ozone (du)

389
392
394
395
397
395
394
392
392
392
392
388
384
379
377
375
373
373
372
371
369
366

Forecast for Hongshikeng, China (40.40,117.58)

Generated: 20/04/26 10:25:11. Forecast: 20/04/26 to 26/04/26. Timezone: UTC+8.00