Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

Waxing Crescent 20%

07:39

23:55

05 Good
06 Good
07 Good
08 OK
09 OK
10 OK
11 Good
12 Good
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

Sun - Rise: 05:22, Set: 18:54, Transit: 12:08. Moon - Rise: 07:39, 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)

0
16
16
30
44
45
10
11
50
75
66
94
66
94
69
98
100
99
100
85
90
100
100
100

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
25
75
80
85
85
51
63
90
99
100

High Clouds (% Sky Obscured)

0
11
9
14
20
25
9
11
50
75
63
94
62
94
69
98
100
99
26
18
34
100
100
95

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)

3
4
4
5
6
7
8
9
11
11
11
11
10
8
6
4
4
3
3
2
2
2
2
3

Chance of Frost

Temperature (°C)

6
7
9
13
15
17
18
19
19
19
19
19
18
16
13
11
10
10
10
9
9
10
10
10

Feels Like (°C)

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

Dew Point (°C)

-12
-12
-10
-11
-14
-14
-14
-12
-10
-10
-12
-12
-9
-7
-5
-4
-3
-1
-1
-0
-1
-2
-3
-3

Relative Humidity (%)

26
25
25
17
12
11
10
11
13
12
11
11
15
21
28
35
40
46
49
51
50
45
42
40

Pressure (mb)

1015
1015
1015
1014
1014
1014
1013
1012
1012
1011
1010
1010
1010
1010
1011
1012
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

370
369
368
368
365
364
362
359
360
362
357
358
356
356
357
359
359
362
361
367
368
368
371
377

Wednesday 22

Waxing Crescent 31%

08:44

00:51

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

Sun - Rise: 05:20, Set: 18:55, Transit: 12:08. Moon - Rise: 08:44, 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)

100
87
23
22
13
6
0
9
41
43
40
32
9
60
55
68
74
76
54
100
100
93
93
88

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
9
22
12
19
18
0
0
0
0
10
16
23
35
30
32
34
32

Medium Clouds (% Sky Obscured)

78
86
21
18
13
6
0
0
33
39
38
8
3
0
0
14
0
2
1
51
66
0
0
0

High Clouds (% Sky Obscured)

100
87
1
0
0
0
0
0
4
2
0
11
4
40
30
45
52
53
28
100
100
75
75
80

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
17
19
1
1
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
4
3
4
5
5
6
7
6
7
6
6
7
7
5
5
4
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
8
12
13
14
15
15
16
15
16
15
14
13
9
7
7
7
6
7
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

41
44
41
32
24
22
22
22
21
21
20
20
22
27
34
37
38
39
44
50
52
57
61
65

Pressure (mb)

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

Ozone (du)

376
370
369
371
376
376
374
375
377
376
374
378
385
383
381
383
383
383
392
396
398
401
401
398

Thursday 23

Waxing Crescent 42%

09:56

01:35

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

Sun - Rise: 05:19, 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)

77
18
24
24
25
36
19
5
0
0
10
16
22
42
37
28
57
52
61
57
61
60
54
52

Low Clouds (% Sky Obscured)

33
18
24
24
25
30
16
5
0
0
10
16
21
21
16
12
15
11
16
12
0
0
0
0

Medium Clouds (% Sky Obscured)

0
1
0
9
11
32
14
0
0
0
0
2
3
10
6
1
0
1
4
11
1
14
29
46

High Clouds (% Sky Obscured)

68
6
7
2
1
0
0
0
0
0
0
0
0
0
0
9
57
45
43
36
58
43
31
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 (%)

0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

8
9
11
14
16
18
20
21
22
22
22
21
20
19
15
15
14
14
13
12
12
11
11
11

Feels Like (°C)

6
7
11
14
16
18
19
20
20
20
19
19
19
18
14
14
13
11
11
10
10
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

74
74
66
58
47
38
31
26
24
23
24
26
30
36
44
44
44
46
50
54
56
59
60
64

Pressure (mb)

1014
1014
1013
1013
1013
1012
1012
1011
1010
1010
1009
1009
1009
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

395
392
390
391
390
390
392
392
389
389
387
386
383
383
384
383
384
385
386
389
391
392
393
394

Friday 24

First Quarter 54%

11:11

02:09

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

Sun - Rise: 05:18, 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)

68
83
98
82
66
49
55
58
51
31
32
27
22
14
4
10
17
21
74
72
65
61
63
64

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

65
81
93
82
63
49
55
39
33
28
22
14
10
6
3
2
0
0
1
2
3
4
5
9

High Clouds (% Sky Obscured)

42
66
90
62
34
6
5
5
3
9
18
27
18
9
0
3
6
9
12
10
7
10
17
20

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
1
2
0
1
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
2
2
2
3
3
3
3
4
6
8
6
6
5
4
4
3
4
4
4
4
4
4
3

Chance of Frost

Temperature (°C)

10
11
13
15
17
20
22
23
24
24
23
22
21
19
16
15
14
14
14
14
13
13
12
12

Feels Like (°C)

9
10
12
14
16
19
20
21
21
22
21
21
20
19
16
15
15
15
15
12
12
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

66
64
59
52
45
36
31
28
25
24
28
33
36
44
56
62
62
60
58
60
65
70
73
76

Pressure (mb)

1011
1011
1012
1012
1012
1011
1011
1011
1010
1010
1009
1010
1010
1010
1011
1012
1012
1011
1011
1011
1010
1010
1010
1009

Ozone (du)

396
401
403
404
409
414
418
423
426
428
426
429
426
425
425
425
425
426
422
421
419
417
416
414

Saturday 25

Waxing Gibbous 65%

12:24

02:37

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
03 Bad
04 Bad

Sun - Rise: 05:16, 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)

75
74
77
51
88
97
97
97
100
97
92
88
92
96
100
94
88
81
87
93
99
94
89
86

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
7
12
21
32
40
24
12
0
3
6
10

Medium Clouds (% Sky Obscured)

6
3
1
19
43
62
75
87
100
94
87
81
87
94
100
84
67
29
20
23
10
5
5
5

High Clouds (% Sky Obscured)

14
14
13
22
39
50
78
87
100
86
71
59
47
36
25
30
35
43
63
81
99
85
70
57

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
4
9
25
31
39
41
31
3
7
7
4

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

Chance of Frost

Temperature (°C)

11
12
13
15
17
18
19
19
19
21
21
21
20
19
17
16
15
14
13
12
12
11
10
9

Feels Like (°C)

10
10
11
14
16
16
17
17
17
18
18
18
18
17
16
14
14
14
13
13
13
12
9
8

Dew Point (°C)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
9
9
7
4
2
2
1

Relative Humidity (%)

80
79
70
62
54
51
48
47
48
43
42
43
45
48
55
57
63
70
77
69
61
53
55
57

Pressure (mb)

1009
1009
1009
1009
1008
1008
1007
1007
1006
1005
1005
1004
1005
1005
1005
1006
1007
1007
1008
1008
1009
1009
1010
1011

Ozone (du)

411
409
406
403
403
400
400
399
398
399
398
396
396
395
394
394
395
395
396
399
402
405
406
407

Sunday 26

Waxing Gibbous 75%

13:33

03:01

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

Sun - Rise: 05:15, 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)

83
91
95
100
100
95
74
48
25
30
31
36
47
60
73
84
92
100
96
94
91
78
72
80

Low Clouds (% Sky Obscured)

9
4
0
0
0
0
1
3
4
4
5
4
13
21
21
19
3
4
5
19
41
50
65
47

Medium Clouds (% Sky Obscured)

4
26
29
35
71
80
53
20
0
0
0
0
17
33
46
64
81
99
95
90
85
60
36
12

High Clouds (% Sky Obscured)

58
72
85
100
95
85
59
43
21
30
31
36
47
35
44
70
75
87
87
85
91
78
72
68

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
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

7
7
2
7
9
6
8
7
1
2
1
0
2
2
1
6
14
19
40
60
80
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
1
1.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
6
6
5
11
11
11
12
12
13
14
14
13
14
14
15
8
8
8
9
9
9
6
7

Dew Point (°C)

1
-1
-2
-4
-5
-7
-9
-8
-7
-6
-7
-7
-8
-7
-6
-5
-5
-5
-6
-4
-3
-1
-1
0

Relative Humidity (%)

60
49
41
34
28
22
18
19
19
20
19
19
18
21
26
31
31
31
30
35
42
50
53
60

Pressure (mb)

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

Ozone (du)

408
410
412
414
417
420
422
423
424
424
424
425
425
425
425
425
423
420
418
416
415
414
413
413

Monday 27

Waxing Gibbous 84%

14:40

03:22

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

Sun - Rise: 05:14, Set: 19:00, Transit: 12:07. Moon - Rise: 14:40, Set: 03:22. Civil Dark: 19:29 - 04:43. Nautical Dark: 20:05 - 04:08. Astro Dark: 20:43 - 03:29

Total Clouds (% Sky Obscured)

79
72
61
68
72
75
83
90
98
79
60
41
61
80
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

53
58
61
65
65
66
60
54
48
32
16
0
12
24
36
48
61
74
79
84
89

Medium Clouds (% Sky Obscured)

11
4
0
1
2
4
12
24
34
31
24
23
37
49
62
61
65
68
73
77
83

High Clouds (% Sky Obscured)

46
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
32
64
96

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

Fog (%)

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

Precipitation Probability (%)

82
49
9
24
22
19
25
24
21
25
29
28
20
7
2
19
24
20
33
38
39

Precipitation Amount (mm)

0.6
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
5
6
7
8
9
10
9
8
9
10
10
12
11
10
8
8
8
8
8
8

Chance of Frost

Temperature (°C)

7
8
9
11
12
14
16
16
17
17
16
15
14
13
11
9
8
8
7
6
6

Feels Like (°C)

7
6
6
5
11
11
11
11
11
11
16
14
14
14
14
15
5
6
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

66
55
48
41
35
30
26
24
21
19
20
22
24
29
35
42
48
56
65
64
63

Pressure (mb)

1012
1012
1012
1012
1012
1011
1011
1011
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1011

Ozone (du)

412
414
416
417
416
416
415
411
408
405
403
401
398
395
393
390
389
388
387
386
384

Forecast for Hongshikeng, China (40.40,117.58)

Generated: 21/04/26 05:29:47. Forecast: 21/04/26 to 27/04/26. Timezone: UTC+8.00