Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Crescent 10%

09:55

19:40

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK
08 Good
09 Good
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

Sun - Rise: 07:30, Set: 16:47, Transit: 12:08. Moon - Rise: 09:55, Set: 19:40. Civil Dark: 17:18 - 06:59. Nautical Dark: 17:52 - 06:25. Astro Dark: 18:25 - 05:51

Total Clouds (% Sky Obscured)

100
100
100
100
100
84
36
28
5
3
0
0
0
0
0
0
0
0
0
0
3
3
3
0

Low Clouds (% Sky Obscured)

53
97
98
95
85
81
17
13
5
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
99
100
100
100
71
25
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
47
32
13
0
1
0
0
0
0
0
0
0
0
0
0
1
0
1
0

ISS Passover

Visibility (miles)

9
7
0
0
0
8
7
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
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

13
43
83
85
29
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.2
0.9
0.8
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
4
3
4
4
4
4
6
8
9
10
10
9
9
7
6
5
5
4
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-7
-7
-8
-7
-8
-8
-8
-8
-5
-4
-5
-5
-5
-6
-6
-6
-8
-9
-10
-10
-10
-10
-10

Dew Point (°C)

-9
-9
-7
-5
-5
-5
-5
-5
-6
-7
-10
-13
-14
-15
-15
-15
-15
-14
-14
-14
-14
-15
-15
-15

Relative Humidity (%)

66
68
82
94
94
94
94
94
92
79
51
39
37
36
36
37
42
52
55
56
58
58
59
60

Pressure (mb)

1023
1023
1023
1022
1022
1021
1022
1022
1023
1024
1024
1024
1024
1023
1024
1024
1025
1027
1027
1028
1029
1029
1030
1030

Ozone (du)

333
332
333
332
335
337
341
342
346
354
352
354
354
351
354
351
351
344
339
337
336
337
337
338

Wednesday 24

Waxing Crescent 17%

10:24

20:47

00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Bad
08 Bad
09 Bad
10 OK
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

Sun - Rise: 07:30, Set: 16:48, Transit: 12:09. Moon - Rise: 10:24, Set: 20:47. Civil Dark: 17:18 - 06:59. Nautical Dark: 17:53 - 06:25. Astro Dark: 18:26 - 05:52

Total Clouds (% Sky Obscured)

0
0
0
0
0
3
8
55
85
93
38
14
5
3
0
0
1
1
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
3
0
0
0
0
1
1
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
19
78
91
32
11
3
3
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
3
7
39
5
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
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
2
2
2
2
3
3
4
5
5
6
7
6
4
5
8
10
12
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-15
-15
-15
-15
-15
-16
-16
-16
-16
-16
-16
-16
-15
-15
-16
-15
-14
-14
-17
-17
-18
-19
-20
-23

Relative Humidity (%)

61
61
61
62
61
61
60
61
60
47
41
38
37
36
36
38
46
55
40
46
45
45
44
38

Pressure (mb)

1030
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1027
1025
1024
1024
1024
1025
1026
1027
1028
1029
1031
1032
1033

Ozone (du)

339
341
342
341
343
344
349
350
352
352
351
348
349
349
352
358
362
364
370
375
378
380
383
386

Thursday 25

Waxing Crescent 25%

10:49

21:54

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

Sun - Rise: 07:30, Set: 16:48, Transit: 12:09. Moon - Rise: 10:49, Set: 21:54. Civil Dark: 17:19 - 07:00. Nautical Dark: 17:53 - 06:25. Astro Dark: 18:26 - 05:52

Total 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

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
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
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)

10
10
10
10
9
9
7
6
6
6
6
7
8
7
6
6
4
3
3
2
2
2
2
1

Chance of Frost

Temperature (°C)

-12
-12
-12
-12
-13
-13
-13
-13
-13
-11
-10
-8
-8
-7
-7
-7
-8
-10
-11
-11
-11
-11
-11
-11

Feels Like (°C)

-16
-16
-16
-16
-16
-16
-15
-15
-15
-13
-12
-11
-11
-10
-9
-9
-9
-11
-12
-12
-12
-12
-12
-12

Dew Point (°C)

-24
-25
-26
-27
-27
-26
-25
-23
-22
-22
-22
-22
-22
-22
-22
-22
-21
-19
-19
-19
-19
-19
-19
-19

Relative Humidity (%)

35
32
29
28
28
31
35
43
46
40
35
31
29
28
28
29
34
46
50
50
50
50
51
51

Pressure (mb)

1033
1033
1034
1035
1035
1034
1034
1035
1036
1036
1036
1035
1034
1033
1032
1032
1032
1033
1033
1033
1033
1033
1033
1032

Ozone (du)

386
384
383
388
388
390
393
384
359
342
337
335
332
331
321
312
310
312
315
319
319
319
318
317

Friday 26

Waxing Crescent 35%

11:12

23:01

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

Sun - Rise: 07:31, Set: 16:49, Transit: 12:10. Moon - Rise: 11:12, Set: 23:01. Civil Dark: 17:19 - 07:00. Nautical Dark: 17:54 - 06:26. Astro Dark: 18:27 - 05:53

Total Clouds (% Sky Obscured)

9
13
30
46
64
47
32
47
45
40
35
41
48
64
62
64
76
87
90
92
82
73
63
80

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
13
11
48

Medium Clouds (% Sky Obscured)

8
11
22
24
26
17
11
0
1
12
10
26
48
53
57
57
76
87
88
92
81
68
19
36

High Clouds (% Sky Obscured)

0
1
0
0
0
8
16
27
20
13
5
6
8
9
7
10
18
13
9
5
6
13
14
8

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)

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

Chance of Frost

Temperature (°C)

-11
-11
-11
-11
-12
-12
-12
-12
-12
-9
-7
-6
-5
-5
-5
-5
-6
-7
-8
-8
-8
-9
-9
-8

Feels Like (°C)

-12
-13
-12
-12
-13
-13
-13
-13
-15
-13
-11
-10
-9
-10
-9
-9
-10
-11
-11
-12
-12
-12
-12
-12

Dew Point (°C)

-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-19
-18
-18
-17
-17
-17
-16
-15
-15
-15
-16
-16
-16
-16

Relative Humidity (%)

51
51
53
53
54
56
56
56
55
44
40
38
37
37
37
39
44
52
54
55
54
54
53
52

Pressure (mb)

1032
1032
1032
1031
1031
1031
1030
1030
1030
1029
1029
1028
1027
1025
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025

Ozone (du)

316
315
314
313
314
318
323
327
328
329
330
330
330
329
329
329
330
330
328
330
329
331
330
328

Saturday 27

Waxing Crescent 46%

11:34

No Set

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 OK
07 Good
08 Good
09 Good
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

Sun - Rise: 07:31, Set: 16:49, Transit: 12:10. Moon - Rise: 11:34, Set: No Set. Civil Dark: 17:20 - 07:00. Nautical Dark: 17:54 - 06:26. Astro Dark: 18:28 - 05:53

Total Clouds (% Sky Obscured)

85
92
84
81
88
24
27
10
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3

Low Clouds (% Sky Obscured)

63
33
24
69
17
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

53
70
51
30
10
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

6
5
5
10
5
2
3
1
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
1
1
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)

2
2
3
3
3
3
3
4
4
4
4
4
3
3
3
3
2
2
2
2
2
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-11
-11
-12
-12
-12
-11
-11
-10
-8
-4
-3
-2
-1
-1
-2
-2
-2
-3
-4
-5
-7
-7
-7

Dew Point (°C)

-16
-16
-17
-17
-17
-17
-16
-17
-16
-16
-15
-15
-15
-15
-14
-14
-13
-13
-13
-14
-14
-14
-15
-15

Relative Humidity (%)

51
50
49
47
48
49
51
50
50
44
38
35
33
32
32
37
45
52
52
52
52
52
51
49

Pressure (mb)

1025
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1024
1023
1023
1022
1022
1023
1023
1023
1024
1024
1024
1024
1023

Ozone (du)

328
328
331
326
324
323
326
329
340
334
335
333
332
332
328
329
330
331
330
330
329
333
336
340

Sunday 28

First Quarter 57%

11:57

00:09

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

Sun - Rise: 07:31, Set: 16:50, Transit: 12:11. Moon - Rise: 11:57, Set: 00:09. Civil Dark: 17:21 - 07:01. Nautical Dark: 17:55 - 06:26. Astro Dark: 18:28 - 05:53

Total Clouds (% Sky Obscured)

4
4
4
4
5
5
6
6
23
40
55
39
23
8
14
22
27
42
62
93
89
81
73
51

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
12
18
20
21
24
17
9
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
4
7
13
23
23
8
14
22
20
20
20
21
14
15
69
48

High Clouds (% Sky Obscured)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-7
-7
-9
-9
-9
-9
-9
-9
-8
-8
-8
-7
-6
-6
-4
-5
-5
-6
-6
-7
-9
-9
-8

Dew Point (°C)

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

Relative Humidity (%)

52
55
57
57
56
57
54
53
51
48
43
39
39
40
42
47
52
60
60
61
62
62
62
63

Pressure (mb)

1023
1023
1022
1022
1021
1020
1020
1020
1020
1019
1019
1018
1017
1016
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016

Ozone (du)

341
342
343
342
341
340
344
349
353
357
361
365
370
376
382
382
382
382
382
383
384
386
389
391

Monday 29

Waxing Gibbous 69%

12:22

01:20

Sun - Rise: 07:32, Set: 16:51, Transit: 12:11. Moon - Rise: 12:22, Set: 01:20. Civil Dark: 17:21 - 07:01. Nautical Dark: 17:56 - 06:27. Astro Dark: 18:29 - 05:54

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Hongshikeng, China (40.40,117.58)

Generated: 23/12/25 00:10:28. Forecast: 23/12/25 to 29/12/25. Timezone: UTC+8.00