Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 14%

03:05

16:20

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

Sun - Rise: 05:52, Set: 18:08, Transit: 12:00. Moon - Rise: 03:05, Set: 16:20. Civil Dark: 18:33 - 05:28. Nautical Dark: 19:02 - 04:59. Astro Dark: 19:31 - 04:30

Total Clouds (% Sky Obscured)

100
97
99
86
88
60
99
46
74
59
39
100
40
93
100
94
100
91
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

91
81
66
62
81
60
90
46
74
59
39
60
39
29
36
21
61
91
91
89
93
93
96
96

Medium Clouds (% Sky Obscured)

97
89
91
86
88
60
90
46
39
58
39
70
40
72
69
38
40
45
64
33
27
44
54
76

High Clouds (% Sky Obscured)

100
34
18
4
2
3
60
11
6
6
6
100
6
71
100
94
100
22
100
100
100
100
97
70

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 (%)

15
25
31
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
6
2
2
6

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

Chance of Frost

Temperature (°C)

19
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20

Feels Like (°C)

18
18
17
18
18
19
20
19
20
19
20
20
19
20
19
19
20
19
19
19
19
19
18
19

Dew Point (°C)

15
16
15
14
13
12
11
11
11
12
14
15
15
15
15
16
17
16
16
16
16
16
16
16

Relative Humidity (%)

75
77
71
69
62
59
56
56
55
59
68
72
74
74
75
77
80
77
76
77
77
77
76
76

Pressure (mb)

1018
1019
1019
1019
1018
1018
1017
1017
1017
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015

Ozone (du)

275
275
276
277
276
276
275
274
273
272
272
273
274
273
273
272
272
272
271
271
271
273
274
273

Friday 19

Waning Crescent 8%

04:07

16:51

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
05 Bad
06 Bad

Sun - Rise: 05:53, Set: 18:07, Transit: 12:00. Moon - Rise: 04:07, Set: 16:51. Civil Dark: 18:32 - 05:28. Nautical Dark: 19:00 - 04:59. Astro Dark: 19:29 - 04:30

Total Clouds (% Sky Obscured)

97
95
94
94
100
95
90
90
98
100
96
100
100
100
100
100
99
100
100
100
95
95
97
98

Low Clouds (% Sky Obscured)

97
95
94
94
99
95
90
90
97
97
96
97
96
95
94
90
92
95
92
85
91
91
91
95

Medium Clouds (% Sky Obscured)

64
65
58
71
70
61
72
76
66
78
79
93
89
58
44
75
73
82
91
87
75
55
49
43

High Clouds (% Sky Obscured)

76
63
52
59
96
54
57
62
82
97
63
100
100
100
100
100
81
100
100
100
0
5
0
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
None
None
None

Precipitation Probability (%)

18
7
7
13
9
12
22
30
34
42
43
42
27
41
50
41
43
38
43
41
45
24
5
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0.2
0.3
0
0
0

Wind Speed/Direction (mph)

8
9
9
9
9
10
9
9
10
12
13
11
10
10
10
10
10
9
9
9
8
8
8
8

Chance of Frost

Temperature (°C)

20
21
22
23
24
26
26
26
24
23
21
20
19
19
18
18
17
17
17
17
16
16
16
16

Feels Like (°C)

19
20
21
22
23
25
25
25
23
20
18
18
18
17
16
16
16
16
16
16
15
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

79
80
80
80
82
83
83
84
87
89
92
92
93
93
93
95
93
95
93
95
95
95
93
93

Pressure (mb)

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

Ozone (du)

273
273
273
274
275
275
274
273
273
273
273
273
273
274
274
272
271
271
271
273
274
275
275
277

Saturday 20

Waning Crescent 3%

05:06

17:19

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
05 Bad
06 Bad

Sun - Rise: 05:53, Set: 18:06, Transit: 11:59. Moon - Rise: 05:06, Set: 17:19. Civil Dark: 18:30 - 05:29. Nautical Dark: 18:59 - 05:00. Astro Dark: 19:28 - 04:31

Total Clouds (% Sky Obscured)

100
94
94
94
94
94
97
95
90
72
87
99
95
89
89
91
96
96
98
99
98
99
99
98

Low Clouds (% Sky Obscured)

99
91
88
86
76
73
64
58
67
67
73
74
70
75
73
74
79
77
91
87
82
79
75
72

Medium Clouds (% Sky Obscured)

41
40
31
24
25
22
28
20
17
19
16
24
31
37
33
40
41
51
50
47
36
37
36
42

High Clouds (% Sky Obscured)

5
5
0
0
0
0
0
0
0
4
29
64
31
9
4
3
0
0
0
3
13
16
14
11

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 (%)

13
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
7
7
7
8
8
7
7
7
6
5
4
5
5
6
7
7
6
5
5
6
6
7
7

Chance of Frost

Temperature (°C)

17
17
18
19
20
21
21
22
22
22
22
21
20
20
20
20
19
19
19
19
18
18
18
19

Feels Like (°C)

16
17
18
18
19
20
21
22
23
23
24
22
20
20
20
19
19
19
19
18
17
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

92
90
90
88
81
79
75
72
71
68
70
76
77
79
81
82
81
81
81
80
78
78
78
81

Pressure (mb)

1016
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

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

Sunday 21

Waning Crescent 1%

06:04

17:45

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
05 Bad
06 Bad

Sun - Rise: 05:54, Set: 18:04, Transit: 11:59. Moon - Rise: 06:04, Set: 17:45. Civil Dark: 18:29 - 05:29. Nautical Dark: 18:58 - 05:01. Astro Dark: 19:27 - 04:32

Total Clouds (% Sky Obscured)

98
98
98
97
97
97
85
98
97
95
95
93
93
88
83
83
93
98
99
99
99
99
98
94

Low Clouds (% Sky Obscured)

72
73
75
78
77
76
75
80
86
91
87
84
80
69
58
47
48
49
49
51
54
56
58
60

Medium Clouds (% Sky Obscured)

41
49
58
53
54
54
60
68
67
63
50
49
47
44
65
83
37
87
96
32
64
59
97
70

High Clouds (% Sky Obscured)

11
16
26
32
22
12
10
65
60
10
58
17
5
13
30
4
11
56
8
71
56
55
13
26

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
11
5
14
20
19
3
0
0
0
0
0
0
0
0
0
0
0
1
6

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)

7
6
8
8
9
9
9
10
10
9
10
9
8
9
8
7
7
7
7
6
6
7
7
7

Chance of Frost

Temperature (°C)

19
19
20
21
22
23
24
25
25
24
23
23
22
22
20
20
20
20
20
20
20
20
20
20

Feels Like (°C)

17
18
19
20
22
23
24
25
24
24
22
23
22
21
20
20
20
19
20
20
20
19
20
20

Dew Point (°C)

16
16
16
17
18
17
17
17
17
18
19
19
18
18
17
17
17
16
17
17
17
17
17
17

Relative Humidity (%)

82
82
80
79
75
67
63
60
61
67
74
78
78
79
81
80
79
79
80
82
85
85
84
85

Pressure (mb)

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

Ozone (du)

272
272
272
272
271
271
271
271
271
271
271
271
270
269
268
268
268
267
267
266
266
267
267
267

Monday 22

New Moon 0%

07:01

18:10

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
05 Bad
06 Bad

Sun - Rise: 05:55, Set: 18:03, Transit: 11:58. Moon - Rise: 07:01, Set: 18:10. Civil Dark: 18:27 - 05:30. Nautical Dark: 18:56 - 05:01. Astro Dark: 19:25 - 04:33

Total Clouds (% Sky Obscured)

95
94
94
93
93
94
94
95
96
98
97
97
96
96
97
97
97
97
97
96
96
94
96
98

Low Clouds (% Sky Obscured)

64
65
65
66
65
62
56
64
70
78
72
66
60
58
56
54
59
64
68
70
72
74
79
83

Medium Clouds (% Sky Obscured)

91
90
89
87
31
32
35
70
62
59
97
96
96
95
95
96
93
93
91
84
82
80
76
73

High Clouds (% Sky Obscured)

39
40
45
40
20
10
2
1
1
0
0
0
0
0
0
0
6
6
6
7
8
12
26
27

ISS Passover

Visibility (miles)

9
9
9
5
9
9
9
9
9
9
9
9
9
7
6
5
4
3
3
2
2
2
2
2

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

Precipitation Probability (%)

9
10
28
33
18
6
4
3
3
11
19
40
65
61
61
59
72
83
93
86
78
67
67
64

Precipitation Amount (mm)

0
0
0
0.2
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.3
0.4
0.6
0.7
0.6
0.4
0.2
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
21
21
22
23
24
24
24
24
24
22
22
21
21
20
20
20
20
20
20
20
20
20

Feels Like (°C)

20
20
20
21
22
23
22
23
23
22
22
20
20
19
19
19
18
18
18
18
19
19
19
19

Dew Point (°C)

18
18
18
19
20
21
21
21
21
21
22
21
20
20
20
20
20
20
19
19
20
20
20
20

Relative Humidity (%)

86
85
84
85
88
87
83
85
85
87
88
89
91
95
96
95
96
96
96
96
98
98
98
98

Pressure (mb)

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

Ozone (du)

268
268
267
267
267
267
267
266
267
267
266
266
267
267
267
267
267
267
267
267
268
268
268
268

Tuesday 23

Waxing Crescent 2%

07:01

18:35

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
05 Bad
06 Bad

Sun - Rise: 05:55, Set: 18:02, Transit: 11:58. Moon - Rise: 07:01, Set: 18:35. Civil Dark: 18:26 - 05:31. Nautical Dark: 18:55 - 05:02. Astro Dark: 19:24 - 04:33

Total Clouds (% Sky Obscured)

98
96
94
92
93
93
93
96
97
97
98
99
99
99
98
97
97
97
95
96
98
100
99
99

Low Clouds (% Sky Obscured)

88
83
79
74
70
67
63
58
54
50
53
56
59
64
71
79
86
91
95
96
95
94
90
87

Medium Clouds (% Sky Obscured)

65
59
57
50
45
42
45
51
59
70
75
75
78
66
54
43
51
58
67
69
78
87
80
73

High Clouds (% Sky Obscured)

27
18
9
0
0
1
1
1
1
0
0
0
0
1
1
2
4
6
15
40
67
92
86
79

ISS Passover

Visibility (miles)

2
2
2
2
2
2
2
2
2
1
1
1
0
0
0
0
0
3
6
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

61
59
56
52
61
66
69
68
68
67
68
69
70
79
80
80
72
72
65
81
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.2
0.3
0.3
0.3
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.5
0.7
0.9
0.8
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
21
22
23
23
24
26
27
27
27
26
25
24
23
22
22
22
21
21
21
20
20
20

Feels Like (°C)

19
19
21
21
22
22
22
24
30
30
31
30
28
27
24
24
23
24
23
23
21
21
20
20

Dew Point (°C)

21
21
21
22
22
22
22
24
25
26
27
26
25
23
23
22
22
21
21
21
20
20
19
19

Relative Humidity (%)

98
98
98
96
97
94
92
90
92
95
97
98
98
97
98
98
98
96
96
96
95
95
96
95

Pressure (mb)

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

Ozone (du)

269
270
269
269
269
269
268
268
267
267
267
267
268
268
268
269
269
269
269
268
268
268
268
268

Wednesday 24

Waxing Crescent 6%

07:57

19:01

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: 05:56, Set: 18:00, Transit: 11:58. Moon - Rise: 07:57, Set: 19:01. Civil Dark: 18:25 - 05:31. Nautical Dark: 18:53 - 05:03. Astro Dark: 19:22 - 04:34

Total Clouds (% Sky Obscured)

98
99
99
100
100
100
100
100
100
100
100
97
96
87
77
70
70
70
71

Low Clouds (% Sky Obscured)

86
87
88
90
88
87
85
81
76
72
73
74
74
76
77
70
70
70
70

Medium Clouds (% Sky Obscured)

73
84
92
100
100
100
100
100
100
100
100
95
80
80
65
50
50
50
40

High Clouds (% Sky Obscured)

73
79
84
87
79
54
42
28
21
19
13
12
12
11
6
5
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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Moderate Rain
Light Rain

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.6
0.6
0.7
0.7
0.7
0.7
0.7
0.8
0.9
0.9
1.2
1.5
2
2.2
2.4
2.7
2.2
2.9
2.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
20
21
21
21
21
21
21
21
21
20
20
20
20
20
20
20
20

Feels Like (°C)

20
20
20
20
20
20
19
19
21
21
21
22
22
23
21
22
23
23
23

Dew Point (°C)

19
19
19
19
18
18
17
17
16
16
16
17
18
19
19
19
19
19
19

Relative Humidity (%)

95
95
92
86
84
80
76
74
74
75
76
81
86
92
92
93
95
95
95

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1012

Ozone (du)

268
268
268
268
267
268
268
268
269
270
271
271
271
272
271
271
270
270
269

Forecast for Gaotang, China (32.74,118.43)

Generated: 18/09/25 07:20:06. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+8.00