Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 1%

05:40

20:39

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
00 Good

Sun - Rise: 05:07, Set: 19:21, Transit: 12:14. Moon - Rise: 05:40, Set: 20:39. Civil Dark: 19:50 - 04:39. Nautical Dark: 20:24 - 04:04. Astro Dark: 21:02 - 03:27

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
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
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
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)

13
12
11
11
10
10
9
9
8
6
5
11
15
17
19
20
19
19
18
17
18
17
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
13
14
13
13
13
15
17
20
22
19
16
16
17
17
18
18
17
19
19
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

40
44
46
48
50
50
47
42
34
28
28
34
44
50
50
56
62
65
68
71
66
63
59
58

Pressure (mb)

1017
1017
1017
1018
1018
1019
1020
1020
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1016
1016
1016
1017
1016
1016

Ozone (du)

268
269
269
269
271
272
271
269
268
269
270
271
272
272
271
271
271
271
272
273
273
273
272
273

Monday 22

Waxing Crescent 5%

06:38

21:20

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
00 Good

Sun - Rise: 05:07, Set: 19:22, Transit: 12:15. Moon - Rise: 06:38, Set: 21:20. Civil Dark: 19:50 - 04:39. Nautical Dark: 20:25 - 04:05. Astro Dark: 21:02 - 03:27

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
12
3
0
0
1
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
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
12
3
0
0
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
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)

14
12
12
11
10
11
10
9
8
7
9
13
16
19
19
20
19
18
16
14
13
11
12
17

Chance of Frost

Temperature (°C)

19
19
18
18
18
17
18
20
22
23
24
24
23
23
23
23
22
22
22
22
23
22
22
22

Feels Like (°C)

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

Dew Point (°C)

11
10
11
11
11
11
10
10
10
11
11
12
13
15
15
15
15
16
17
17
17
17
15
12

Relative Humidity (%)

57
57
60
62
63
66
60
52
47
45
44
47
52
60
59
60
64
66
69
72
71
71
63
53

Pressure (mb)

1016
1016
1016
1016
1017
1018
1018
1018
1018
1018
1017
1016
1016
1015
1015
1014
1014
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

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

Tuesday 23

Waxing Crescent 10%

07:39

21:56

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
00 Good

Sun - Rise: 05:08, Set: 19:22, Transit: 12:15. Moon - Rise: 07:39, Set: 21:56. Civil Dark: 19:51 - 04:40. Nautical Dark: 20:25 - 04:05. Astro Dark: 21:03 - 03:28

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
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
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
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)

16
15
15
15
14
14
14
13
12
9
7
5
9
14
15
17
16
15
13
11
10
8
10
14

Chance of Frost

Temperature (°C)

21
20
20
20
19
19
20
22
24
26
28
29
28
26
26
26
26
26
25
25
25
25
26
25

Feels Like (°C)

18
18
17
17
17
17
17
20
22
25
28
30
29
25
24
24
23
24
24
24
24
25
24
21

Dew Point (°C)

12
12
12
12
12
12
12
12
11
11
11
12
12
12
13
14
15
15
15
15
14
13
11
11

Relative Humidity (%)

57
60
61
61
61
62
59
52
44
39
36
36
37
41
43
47
51
53
52
52
50
47
38
42

Pressure (mb)

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

Ozone (du)

276
276
275
276
276
276
278
279
279
279
278
277
277
278
278
277
277
278
279
278
278
278
278
278

Wednesday 24

Waxing Crescent 17%

08:40

22:29

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

Sun - Rise: 05:08, Set: 19:23, Transit: 12:16. Moon - Rise: 08:40, Set: 22:29. Civil Dark: 19:51 - 04:40. Nautical Dark: 20:26 - 04:06. Astro Dark: 21:03 - 03:28

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
20
25
14
50
1
7
10
13
11
6
0
0
0
0
0
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
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
7
5
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
5
25
14
50
1
3
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)

15
17
17
16
16
15
15
15
14
12
11
8
6
4
5
8
10
9
8
7
7
7
8
9

Chance of Frost

Temperature (°C)

24
23
23
22
22
22
23
24
27
29
31
32
33
33
32
30
29
29
28
28
28
28
28
28

Feels Like (°C)

20
19
19
18
18
19
19
21
23
25
27
31
31
35
33
29
28
28
28
28
28
29
29
27

Dew Point (°C)

11
11
11
11
10
10
10
10
10
10
11
10
11
12
10
13
13
14
14
13
14
12
11
10

Relative Humidity (%)

44
45
46
48
47
47
44
39
35
32
29
26
25
27
24
35
37
41
41
40
40
36
33
33

Pressure (mb)

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

Ozone (du)

279
280
280
280
280
279
279
278
277
276
276
276
276
276
276
276
275
275
275
272
271
270
271
271

Thursday 25

Waxing Crescent 25%

09:41

22:58

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

Sun - Rise: 05:09, Set: 19:23, Transit: 12:16. Moon - Rise: 09:41, Set: 22:58. Civil Dark: 19:51 - 04:41. Nautical Dark: 20:26 - 04:06. Astro Dark: 21:03 - 03:29

Total Clouds (% Sky Obscured)

0
0
0
0
0
6
3
1
4
3
4
4
0
0
0
0
17
36
61
67
65
63
65
65

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
6
3
1
4
3
4
4
0
0
0
0
3
5
8
15
25
36
33
30

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

Chance of Frost

Temperature (°C)

27
27
27
26
26
26
27
28
30
32
33
34
35
36
34
32
31
30
30
29
29
29
29
29

Feels Like (°C)

26
24
24
24
23
23
23
24
27
30
32
35
37
36
34
34
33
32
32
32
28
28
29
29

Dew Point (°C)

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

Relative Humidity (%)

32
31
30
29
29
29
28
27
27
26
24
25
25
26
28
32
35
36
36
38
36
34
33
33

Pressure (mb)

1009
1009
1009
1009
1009
1010
1010
1010
1009
1009
1008
1007
1006
1005
1004
1004
1003
1004
1004
1004
1004
1004
1004
1003

Ozone (du)

270
268
268
268
270
270
272
273
274
274
274
273
272
271
270
269
268
267
265
264
263
262
262
262

Friday 26

Waxing Crescent 35%

10:42

23:26

01 Bad
02 Bad
03 Bad
04 Bad
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 OK
22 OK
23 OK
00 OK

Sun - Rise: 05:10, Set: 19:24, Transit: 12:17. Moon - Rise: 10:42, Set: 23:26. Civil Dark: 19:52 - 04:41. Nautical Dark: 20:26 - 04:07. Astro Dark: 21:04 - 03:30

Total Clouds (% Sky Obscured)

68
70
73
76
75
76
80
71
63
50
55
55
58
60
62
62
65
68
64
51
42
38
30
23

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)

26
36
45
54
52
50
48
33
17
1
22
43
58
60
62
62
65
68
64
51
39
9
28
23

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
2
3
3
2
1
1
0
0
1
2
2
3
3
3
1
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
5
6
3
8
8
3
21
17
9
6
2
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
6
6
5
2
2
4
6
8
11
12
14
17
15
13
13
13
13
13
12
11
10
11

Chance of Frost

Temperature (°C)

29
29
28
28
27
27
27
26
27
27
28
29
29
30
29
29
29
28
26
24
24
24
24
23

Feels Like (°C)

29
29
28
28
28
27
26
26
28
29
29
30
31
32
28
28
27
26
25
23
22
22
23
22

Dew Point (°C)

11
11
11
11
12
11
11
11
12
14
15
17
19
21
22
22
22
21
20
19
18
18
18
17

Relative Humidity (%)

33
32
34
36
38
37
38
38
40
42
45
49
54
61
63
64
67
67
69
71
70
68
68
66

Pressure (mb)

1003
1002
1002
1002
1003
1003
1004
1005
1004
1004
1004
1004
1004
1003
1003
1003
1003
1004
1004
1005
1005
1005
1006
1005

Ozone (du)

262
262
262
262
261
262
262
262
261
261
260
260
260
261
261
261
261
261
262
262
261
261
261
261

Saturday 27

Waxing Crescent 46%

11:43

23:54

Sun - Rise: 05:10, Set: 19:24, Transit: 12:17. Moon - Rise: 11:43, Set: 23:54. Civil Dark: 19:52 - 04:42. Nautical Dark: 20:27 - 04:08. Astro Dark: 21:04 - 03:30

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 Northbridge, City of Perth, Australia (-31.95,115.86)

Generated: 21/12/25 01:12:23. Forecast: 21/12/25 to 27/12/25. Timezone: UTC+8.00