Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 88%

19:26

02:13

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

Sun - Rise: 06:01, Set: 21:38, Transit: 13:49. Moon - Rise: 19:26, Set: 02:13. Civil Dark: 22:19 - 05:20. Nautical Dark: 23:15 - 04:24. Astro Dark: 00:39 - 03:03

Total Clouds (% Sky Obscured)

2
14
19
36
38
32
35
42
31
66
50
99
68
47
87
54
100
87
66
87
83
97
97
100

Low Clouds (% Sky Obscured)

0
9
13
16
5
8
18
13
17
43
34
24
8
0
0
0
0
0
0
0
9
0
11
35

Medium Clouds (% Sky Obscured)

2
14
19
27
30
25
18
26
16
20
17
22
6
0
37
18
1
12
19
38
45
37
42
83

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
21
5
96
53
47
53
32
100
78
53
56
79
96
44
30

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
10
0
3

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

Chance of Frost

Temperature (°C)

19
21
23
25
26
27
28
28
28
28
28
27
25
22
20
19
18
17
17
16
16
16
16
17

Feels Like (°C)

20
22
24
26
27
27
28
26
27
27
25
25
22
20
18
17
16
15
15
14
14
15
14
14

Dew Point (°C)

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

Relative Humidity (%)

46
41
38
35
32
30
28
31
29
28
29
32
36
42
49
55
59
63
68
77
83
87
81
66

Pressure (mb)

1011
1010
1010
1010
1009
1008
1008
1007
1007
1007
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

338
339
340
341
341
343
343
341
336
334
332
332
330
330
330
329
329
327
326
324
324
324
325
326

Sunday 26

Waxing Gibbous 93%

20:17

03:08

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 OK
05 Bad
06 OK
07 Good
08 OK

Sun - Rise: 06:02, Set: 21:37, Transit: 13:49. Moon - Rise: 20:17, Set: 03:08. Civil Dark: 22:18 - 05:21. Nautical Dark: 23:13 - 04:26. Astro Dark: 00:34 - 03:07

Total Clouds (% Sky Obscured)

96
93
99
96
100
96
88
81
78
62
62
67
80
89
77
62
55
52
54
43
41
25
12
25

Low Clouds (% Sky Obscured)

85
93
98
88
85
86
80
63
70
44
62
57
80
81
76
56
10
14
0
2
0
3
6
15

Medium Clouds (% Sky Obscured)

84
90
44
35
43
30
23
23
18
17
10
19
22
36
18
30
37
34
37
31
32
16
1
0

High Clouds (% Sky Obscured)

30
1
2
3
1
1
0
0
0
0
5
1
0
1
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
4
7
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 (%)

2
5
11
5
15
14
24
46
46
43
23
21
21
19
4
9
3
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)

13
13
13
12
13
14
13
13
15
13
14
10
9
9
9
9
8
7
6
6
6
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
11
14
16
16
17
18
19
19
18
18
18
17
16
16
15
15
15
15
14
14
14
14
13

Relative Humidity (%)

51
57
70
76
71
79
84
86
80
73
76
81
76
78
78
80
83
86
89
87
90
89
87
81

Pressure (mb)

1007
1007
1007
1007
1007
1007
1008
1008
1007
1007
1007
1008
1008
1009
1009
1010
1011
1011
1012
1012
1013
1014
1015
1016

Ozone (du)

326
326
326
329
330
329
330
330
329
330
329
330
331
331
331
332
334
334
334
334
334
335
336
335

Monday 27

Waxing Gibbous 97%

20:56

04:14

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

Sun - Rise: 06:03, Set: 21:35, Transit: 13:49. Moon - Rise: 20:56, Set: 04:14. Civil Dark: 22:16 - 05:23. Nautical Dark: 23:11 - 04:29. Astro Dark: 00:30 - 03:11

Total Clouds (% Sky Obscured)

39
72
55
40
35
47
41
41
53
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

27
56
40
21
19
17
3
16
36
17
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
6
26
25
22
24
29
19
21
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
1
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)

9
9
10
10
10
11
12
11
11
10
9
7
4
3
3
3
3
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

18
19
21
22
23
24
25
25
25
25
24
23
22
20
19
18
17
16
16
16
15
15
16
18

Feels Like (°C)

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

Dew Point (°C)

13
11
9
9
8
8
7
7
7
7
7
8
9
8
8
8
8
8
7
7
7
7
7
7

Relative Humidity (%)

70
58
47
41
36
34
31
31
31
32
34
36
44
48
51
53
54
56
56
57
58
58
56
47

Pressure (mb)

1016
1017
1018
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

334
332
332
331
331
330
330
331
330
331
330
330
330
330
330
330
330
330
330
329
327
327
326
327

Tuesday 28

Waxing Gibbous 100%

21:25

05:27

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

Sun - Rise: 06:05, Set: 21:34, Transit: 13:49. Moon - Rise: 21:25, Set: 05:27. Civil Dark: 22:14 - 05:25. Nautical Dark: 23:09 - 04:31. Astro Dark: 00:26 - 03:15

Total Clouds (% Sky Obscured)

0
4
16
3
3
8
14
20
13
7
6
2
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
3
3
3
3
3
3
3
3
3
2
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
4
16
2
3
6
9
12
8
5
6
1
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)

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

Chance of Frost

Temperature (°C)

21
23
26
27
29
30
31
32
32
32
32
31
28
26
25
24
23
22
22
21
21
21
21
23

Feels Like (°C)

20
23
25
26
29
31
31
32
33
33
32
31
28
26
24
23
23
23
21
21
21
20
22
23

Dew Point (°C)

7
7
7
7
7
8
7
8
8
8
7
8
9
9
9
9
9
9
9
9
8
8
9
8

Relative Humidity (%)

40
34
30
28
25
24
23
22
22
22
22
24
29
34
37
37
42
43
44
44
43
44
44
39

Pressure (mb)

1021
1021
1021
1021
1020
1020
1019
1019
1018
1017
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1015
1015

Ozone (du)

326
325
325
326
327
328
329
329
331
331
330
329
326
325
326
328
325
325
326
326
325
326
327
328

Wednesday 29

Full Moon 100%

21:46

06:42

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

Sun - Rise: 06:06, Set: 21:32, Transit: 13:49. Moon - Rise: 21:46, Set: 06:42. Civil Dark: 22:12 - 05:26. Nautical Dark: 23:06 - 04:33. Astro Dark: 00:22 - 03:19

Total Clouds (% Sky Obscured)

0
0
0
0
1
1
13
25
24
45
53
63
63
62
42
22
1
8
16
23
34
45
56
57

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
2
11
45
48
28
16
3
3
2
1
8
16
23
34
43
49
38

High Clouds (% Sky Obscured)

0
0
0
0
1
1
13
25
21
4
7
51
57
62
42
22
0
0
0
0
0
1
1
7

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)

5
5
5
4
4
4
5
7
7
6
7
10
6
5
4
3
3
3
2
2
3
3
2
2

Chance of Frost

Temperature (°C)

26
29
32
34
36
37
37
38
38
38
38
36
33
30
28
27
26
25
25
25
24
25
25
25

Feels Like (°C)

26
29
32
35
36
37
37
36
35
37
35
33
32
31
31
30
29
28
24
24
25
25
25
25

Dew Point (°C)

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

Relative Humidity (%)

33
27
22
17
15
13
12
11
11
10
10
14
17
21
26
28
29
31
30
28
27
27
27
27

Pressure (mb)

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

Ozone (du)

328
328
326
325
325
326
326
325
323
322
322
320
319
318
317
316
315
314
314
313
313
313
314
315

Thursday 30

Waning Gibbous 98%

22:03

07:57

09 Bad
10 Bad
11 Bad
12 OK
13 OK
14 OK
15 OK
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
07 Bad
08 Bad

Sun - Rise: 06:08, Set: 21:31, Transit: 13:49. Moon - Rise: 22:03, Set: 07:57. Civil Dark: 22:11 - 05:28. Nautical Dark: 23:04 - 04:35. Astro Dark: 00:18 - 03:23

Total Clouds (% Sky Obscured)

61
66
46
26
6
17
28
44
53
61
69
72
78
74
67
68
60
55
55
50
45
45
50
50

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)

28
14
12
6
0
6
11
16
13
8
6
6
7
9
9
8
10
14
14
17
11
10
6
16

High Clouds (% Sky Obscured)

13
19
14
6
2
17
28
44
53
61
69
72
78
74
67
68
60
55
55
50
40
30
30
24

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
1
1
1
3
4
3
10
15
17
19
16
7
13
9
0
2

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
7
7
7
7
7
7
8
7
7
7
6
5
6
5
5
6
6
6
6
6
7
8

Chance of Frost

Temperature (°C)

27
30
32
34
35
37
37
38
38
37
35
34
31
28
25
24
23
23
22
22
22
23
24
25

Feels Like (°C)

26
27
27
28
29
30
37
36
36
37
38
38
30
29
28
27
26
25
22
22
22
22
23
23

Dew Point (°C)

5
4
4
5
6
7
7
7
6
8
10
12
12
13
13
13
12
12
12
12
12
12
12
13

Relative Humidity (%)

23
20
16
16
16
16
15
15
14
17
21
26
32
39
48
48
50
52
53
52
53
51
49
47

Pressure (mb)

1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1013
1012
1013
1013
1013

Ozone (du)

314
314
314
313
312
311
311
311
311
310
310
309
308
306
304
303
301
299
299
298
298
297
297
297

Friday 31

Waning Gibbous 94%

22:17

No Set

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: 06:09, Set: 21:29, Transit: 13:48. Moon - Rise: 22:17, Set: No Set. Civil Dark: 22:09 - 05:30. Nautical Dark: 23:02 - 04:37. Astro Dark: 00:14 - 03:27

Total Clouds (% Sky Obscured)

50
50
51
52
58
66
73
75
67
56
40
51
56
70
70
72
68

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

26
35
31
27
20
14
12
10
13
16
23
27
32
37
50
62
68

High Clouds (% Sky Obscured)

22
21
28
45
58
65
72
75
50
30
12
22
29
39
38
36
35

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

1
0
8
9
13
10
10
3
9
9
6
11
11
5
12
9
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
8
9
7
6
5
3
3
5
5
7
9
8
8
8
6
6

Chance of Frost

Temperature (°C)

27
29
31
31
31
30
31
32
33
33
32
32
30
28
26
26
25

Feels Like (°C)

26
26
25
25
22
20
32
31
31
32
34
35
32
32
31
30
28

Dew Point (°C)

12
11
9
7
3
-1
-3
-6
-8
-6
-3
-2
3
7
11
11
10

Relative Humidity (%)

39
31
25
21
16
13
10
8
6
8
9
11
17
26
39
38
38

Pressure (mb)

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

Ozone (du)

297
298
298
298
298
299
298
298
297
297
296
296
295
294
293
294
295

Forecast for Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 25/07/26 09:12:48. Forecast: 25/07/26 to 31/07/26. Timezone: UTC+2.00