Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 4%

04:24

18:43

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

Sun - Rise: 05:39, Set: 20:03, Transit: 12:51. Moon - Rise: 04:24, Set: 18:43. Civil Dark: 20:32 - 05:10. Nautical Dark: 21:08 - 04:34. Astro Dark: 21:48 - 03:55

Total Clouds (% Sky Obscured)

5
18
33
5
4
11
5
18
38
27
63
11
60
46
5
2
2
0
1
0
3
4
2
0

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
3
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
5
8
2
4
2
2
0
0
0
1
1
1
0

High Clouds (% Sky Obscured)

5
18
33
3
3
10
3
14
28
18
40
2
35
29
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)

4
5
6
6
7
9
11
11
13
14
16
15
12
11
10
8
5
4
5
1
2
1
3
4

Chance of Frost

Temperature (°C)

19
21
23
25
27
28
28
28
28
28
28
27
26
25
25
24
23
23
22
22
21
21
20
20

Feels Like (°C)

21
23
25
27
29
29
28
29
28
27
26
25
26
25
24
26
26
26
25
25
25
25
23
23

Dew Point (°C)

16
15
15
14
15
15
16
17
17
18
18
18
19
19
20
19
19
18
16
16
17
17
16
15

Relative Humidity (%)

80
68
59
52
46
44
47
50
51
53
56
58
64
69
73
77
79
74
68
69
76
79
76
72

Pressure (mb)

1018
1018
1018
1017
1016
1015
1014
1013
1012
1011
1010
1010
1010
1010
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009

Ozone (du)

261
260
258
257
256
257
257
257
256
256
257
258
258
258
259
258
258
257
257
257
257
257
258
258

Friday 19

Waning Crescent 1%

05:12

19:39

07 Good
08 Good
09 Good
10 OK
11 OK
12 OK
13 OK
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: 05:40, Set: 20:04, Transit: 12:52. Moon - Rise: 05:12, Set: 19:39. Civil Dark: 20:33 - 05:11. Nautical Dark: 21:09 - 04:35. Astro Dark: 21:48 - 03:56

Total Clouds (% Sky Obscured)

0
1
14
20
17
24
18
88
84
87
94
98
100
100
100
100
100
100
99
86
82
95
96
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
7
4
1
2
28
64
40
13
2
2
1
1
1
57
73
70

Medium Clouds (% Sky Obscured)

0
1
14
20
17
24
18
76
71
75
88
93
100
100
86
89
74
65
98
71
79
80
73
96

High Clouds (% Sky Obscured)

0
0
0
0
0
3
2
1
0
38
57
24
30
51
100
100
100
92
61
18
60
60
48
71

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
6
6
9
9
9
9
6
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
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
3
7
16
20
30
17
8
9
32
39
35
48
22
7
12
8
29
26
47

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
6
3
5
5
9
9
9
7
7
8
13
5
6
1
5
6
6
6
7
5
8
5

Chance of Frost

Temperature (°C)

21
25
29
32
34
35
36
36
34
34
33
28
27
25
25
24
24
23
23
23
23
22
22
22

Feels Like (°C)

24
27
31
34
35
37
36
37
33
34
33
27
25
26
26
26
25
24
24
24
23
24
22
23

Dew Point (°C)

15
14
15
13
13
15
16
19
24
23
19
13
14
16
18
18
19
19
19
19
18
18
18
19

Relative Humidity (%)

66
51
40
31
28
29
29
36
58
51
42
40
43
55
66
68
73
77
75
76
75
75
78
85

Pressure (mb)

1010
1010
1010
1009
1009
1008
1007
1007
1007
1006
1006
1007
1008
1010
1010
1009
1010
1009
1008
1008
1007
1007
1008
1009

Ozone (du)

258
258
258
257
257
257
257
256
257
256
255
257
257
257
258
259
258
256
257
256
257
258
260
259

Saturday 20

New Moon 0%

06:06

20:32

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

Sun - Rise: 05:40, Set: 20:04, Transit: 12:52. Moon - Rise: 06:06, Set: 20:32. Civil Dark: 20:34 - 05:11. Nautical Dark: 21:09 - 04:35. Astro Dark: 21:49 - 03:56

Total Clouds (% Sky Obscured)

100
100
100
100
99
85
92
98
77
98
65
31
6
1
5
3
0
4
19
38
20
29
38
38

Low Clouds (% Sky Obscured)

74
46
62
38
40
38
13
9
0
2
1
3
0
0
0
0
0
1
14
33
15
26
33
37

Medium Clouds (% Sky Obscured)

100
95
100
100
96
80
82
87
16
33
29
13
2
0
1
1
0
1
1
2
1
2
3
1

High Clouds (% Sky Obscured)

71
75
100
81
63
19
41
79
28
93
20
0
1
1
1
1
0
0
0
2
2
2
4
4

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
9
9
9
9
8
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 (%)

30
14
10
15
8
2
4
6
7
6
7
24
29
22
7
3
2
1
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
3
5
8
11
9
7
6
9
8
9
9
6
3
7
7
6
7
8
6
6
3
2
2

Chance of Frost

Temperature (°C)

22
22
23
24
25
27
28
29
30
30
29
29
27
25
24
23
23
22
22
22
22
22
21
21

Feels Like (°C)

23
24
25
24
25
27
28
29
29
29
28
28
28
29
27
26
26
26
25
25
24
26
26
26

Dew Point (°C)

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

Relative Humidity (%)

83
84
77
70
57
46
40
33
32
32
37
37
49
69
78
81
87
91
92
92
91
91
91
91

Pressure (mb)

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

Ozone (du)

260
262
262
264
263
264
263
262
262
261
261
261
261
261
261
261
262
262
262
260
260
261
262
262

Sunday 21

Waxing Crescent 1%

07:05

21:19

07 OK
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: 05:41, Set: 20:05, Transit: 12:53. Moon - Rise: 07:05, Set: 21:19. Civil Dark: 20:34 - 05:12. Nautical Dark: 21:10 - 04:36. Astro Dark: 21:49 - 03:57

Total Clouds (% Sky Obscured)

42
81
95
96
93
90
87
76
94
85
57
62
97
100
100
100
99
98
98
90
97
97
98
99

Low Clouds (% Sky Obscured)

41
39
33
31
30
24
24
18
59
15
10
10
10
24
35
48
21
10
1
6
13
20
14
7

Medium Clouds (% Sky Obscured)

1
3
8
1
15
15
20
20
49
50
28
27
42
52
67
70
71
66
41
43
68
55
65
73

High Clouds (% Sky Obscured)

6
46
71
84
76
69
60
56
79
74
57
62
97
100
100
100
98
95
93
90
89
87
91
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
9
9
9
9
9
8
9
7
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
Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
1
15
74
27
16
22
37
60
69
51
32
9
3
2
1
0
0
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.7
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

2
3
3
5
6
4
2
3
5
12
12
11
14
12
14
10
8
6
4
11
10
12
10
7

Chance of Frost

Temperature (°C)

22
23
25
27
28
28
29
29
29
25
26
27
25
24
24
23
23
22
22
23
22
23
23
23

Feels Like (°C)

27
27
27
28
29
30
31
30
31
25
26
28
25
24
23
24
24
24
25
23
24
22
23
24

Dew Point (°C)

19
18
17
16
15
15
14
13
15
21
20
16
17
19
19
20
20
20
21
19
19
18
17
18

Relative Humidity (%)

83
72
60
51
43
43
39
37
43
82
69
50
61
72
73
84
84
88
89
81
83
76
72
72

Pressure (mb)

1007
1007
1007
1006
1006
1005
1004
1003
1002
1002
1001
1001
1001
1001
1002
1003
1003
1001
1000
1000
1000
1000
999
1000

Ozone (du)

264
265
267
268
267
268
270
269
266
266
266
268
268
269
268
268
269
270
270
270
271
271
273
274

Monday 22

Waxing Crescent 4%

07:05

22:00

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: 05:41, Set: 20:06, Transit: 12:53. Moon - Rise: 07:05, Set: 22:00. Civil Dark: 20:35 - 05:12. Nautical Dark: 21:10 - 04:36. Astro Dark: 21:50 - 03:57

Total Clouds (% Sky Obscured)

100
85
75
70
65
65
60
65
65
70
86
87
88
92
96
100
100
100
100
95
92
90
81
72

Low Clouds (% Sky Obscured)

0
0
0
0
16
30
43
29
14
0
56
56
47
63
80
97
97
98
99
95
92
90
81
72

Medium Clouds (% Sky Obscured)

86
85
75
70
60
46
29
35
38
43
49
44
39
43
41
44
46
44
46
47
44
43
32
19

High Clouds (% Sky Obscured)

100
85
75
70
65
65
60
65
65
70
86
87
88
92
95
95
95
95
95
95
92
90
60
32

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

Precipitation Probability (%)

0
3
4
7
6
11
19
21
17
9
35
34
40
32
24
20
23
19
13
29
35
30
36
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
10
10
10
9
8
6
4
9
17
16
15
14
12
10
9
7
6
4
3
3
4
4

Chance of Frost

Temperature (°C)

24
26
28
30
32
33
34
33
33
31
28
25
23
21
21
21
20
20
20
20
20
19
19
20

Feels Like (°C)

25
26
29
31
33
33
33
34
34
30
27
24
24
22
22
22
21
18
18
19
19
19
19
20

Dew Point (°C)

19
18
17
16
16
14
11
11
10
12
20
18
17
17
16
16
15
15
14
14
14
14
14
14

Relative Humidity (%)

70
61
51
42
38
31
25
25
25
31
60
65
70
76
74
73
71
70
69
69
70
72
73
71

Pressure (mb)

1001
1001
1002
1002
1002
1001
1001
1001
1001
1002
1002
1004
1006
1007
1008
1009
1009
1009
1009
1009
1008
1008
1008
1008

Ozone (du)

277
281
284
282
281
282
282
280
279
279
279
280
280
281
280
279
278
279
280
280
281
282
282
283

Tuesday 23

Waxing Crescent 9%

08:07

22:36

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

Sun - Rise: 05:42, Set: 20:06, Transit: 12:54. Moon - Rise: 08:07, Set: 22:36. Civil Dark: 20:35 - 05:13. Nautical Dark: 21:11 - 04:37. Astro Dark: 21:50 - 03:58

Total Clouds (% Sky Obscured)

54
48
42
36
36
33
33
34
26
19
20
25
24
24
35
40
64
73
80
76
71
62
53
44

Low Clouds (% Sky Obscured)

54
48
41
32
19
20
30
30
26
19
20
25
24
24
35
40
64
73
80
76
71
62
53
44

Medium Clouds (% Sky Obscured)

9
7
3
0
6
11
17
12
7
2
9
16
21
19
16
10
15
23
21
14
5
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)

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 (%)

16
13
9
2
3
2
0
1
1
0
4
6
8
8
13
8
13
19
13
14
15
9
16
17

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)

5
5
5
5
6
9
12
14
14
14
14
13
12
11
9
8
6
3
3
6
6
5
5
4

Chance of Frost

Temperature (°C)

20
21
22
23
23
24
24
24
24
24
23
23
22
21
21
20
20
20
20
20
19
19
18
19

Feels Like (°C)

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

Dew Point (°C)

14
14
13
12
11
13
14
15
15
16
16
17
17
18
18
19
19
19
18
18
18
18
18
17

Relative Humidity (%)

68
66
59
52
46
50
54
58
59
60
62
68
74
81
85
91
93
92
92
89
91
93
95
84

Pressure (mb)

1009
1009
1009
1009
1009
1008
1008
1007
1007
1006
1006
1007
1008
1008
1009
1009
1010
1010
1009
1009
1009
1009
1009
1009

Ozone (du)

284
285
284
283
283
281
279
277
277
278
278
278
278
278
278
278
278
277
277
277
278
278
279
279

Wednesday 24

Waxing Crescent 16%

09:09

23:07

Sun - Rise: 05:42, Set: 20:06, Transit: 12:54. Moon - Rise: 09:09, Set: 23:07. Civil Dark: 20:35 - 05:13. Nautical Dark: 21:11 - 04:38. Astro Dark: 21:51 - 03:58

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 Sydney, Australia (-33.87,151.21)

Generated: 18/12/25 07:05:27. Forecast: 18/12/25 to 24/12/25. Timezone: UTC+11.00