Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 9

Waning Crescent 8%

02:29

19:40

19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 Bad
01 OK
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 OK
16 OK
17 OK
18 Bad

Sun - Rise: 06:16, Set: 21:15, Transit: 13:44. Moon - Rise: 02:29, Set: 19:40. Civil Dark: 21:54 - 05:37. Nautical Dark: 22:46 - 04:46. Astro Dark: 23:52 - 03:41

Total Clouds (% Sky Obscured)

100
99
79
39
23
52
20
57
50
72
94
73
90
88
88
89
94
83
85
66
35
22
29
63

Low Clouds (% Sky Obscured)

2
6
0
0
0
0
0
0
0
0
9
1
0
0
19
26
26
29
51
31
10
4
0
0

Medium Clouds (% Sky Obscured)

70
42
34
34
19
11
3
6
3
21
26
55
36
16
21
24
37
25
25
14
8
0
0
0

High Clouds (% Sky Obscured)

96
43
5
2
1
52
18
54
50
65
87
64
79
71
39
38
25
25
30
35
17
17
27
63

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)

6
5
6
5
6
6
6
7
6
6
6
6
6
8
10
11
11
12
12
13
13
13
13
12

Chance of Frost

Temperature (°C)

28
27
24
22
21
20
19
18
18
18
17
17
17
19
21
22
23
23
23
24
24
24
23
23

Feels Like (°C)

26
25
22
22
21
20
19
18
16
16
15
15
17
18
18
20
20
20
21
21
21
22
21
20

Dew Point (°C)

8
7
7
7
7
7
8
9
9
9
8
10
13
15
13
13
12
12
12
12
12
10
8
7

Relative Humidity (%)

29
28
33
37
38
42
48
54
55
55
56
62
78
75
60
55
52
49
48
48
46
41
38
35

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1012
1013
1013
1014
1015
1016
1017
1017
1018
1018
1019
1019
1019

Ozone (du)

318
320
318
317
317
318
318
317
317
317
315
313
312
311
311
311
310
309
309
309
309
310
309
309

Monday 10

Waning Crescent 2%

03:58

20:22

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

Sun - Rise: 06:17, Set: 21:13, Transit: 13:44. Moon - Rise: 03:58, Set: 20:22. Civil Dark: 21:52 - 05:38. Nautical Dark: 22:43 - 04:48. Astro Dark: 23:48 - 03:44

Total Clouds (% Sky Obscured)

61
100
67
65
50
33
54
100
63
100
39
58
46
50
7
22
23
23
33
25
27
56
63
63

Low Clouds (% Sky Obscured)

0
20
22
15
0
0
5
14
15
2
12
18
18
15
2
14
17
16
25
19
14
1
0
0

Medium Clouds (% Sky Obscured)

0
0
24
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)

61
100
58
40
45
29
49
100
47
100
23
25
20
20
2
2
3
6
8
2
11
55
63
63

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)

11
9
7
7
7
6
6
5
4
4
3
3
3
4
5
7
8
9
9
9
10
11
11
12

Chance of Frost

Temperature (°C)

21
20
19
17
16
15
14
13
12
12
12
11
11
13
16
18
19
21
22
23
24
24
23
22

Feels Like (°C)

20
19
17
16
14
13
13
12
11
10
11
11
10
13
14
17
18
20
21
21
22
22
20
20

Dew Point (°C)

7
9
11
12
12
11
11
10
10
9
9
9
9
8
9
9
8
7
7
7
7
6
5
4

Relative Humidity (%)

38
47
62
72
75
79
80
80
83
81
84
86
83
71
64
55
46
40
37
35
34
32
31
31

Pressure (mb)

1020
1020
1021
1021
1022
1023
1023
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025

Ozone (du)

310
310
310
309
311
313
314
315
316
315
316
315
313
311
312
312
311
310
312
313
312
312
313
314

Tuesday 11

Waning Crescent 0%

05:31

20:50

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

Sun - Rise: 06:19, Set: 21:11, Transit: 13:44. Moon - Rise: 05:31, Set: 20:50. Civil Dark: 21:50 - 05:40. Nautical Dark: 22:41 - 04:50. Astro Dark: 23:44 - 03:48

Total Clouds (% Sky Obscured)

65
60
67
6
4
38
25
40
42
4
9
24
17
3
4
1
10
1
5
30
53
71
50
29

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)

65
60
67
6
3
38
25
40
42
2
8
24
16
1
3
1
10
1
5
30
53
71
50
29

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)

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

Chance of Frost

Temperature (°C)

21
20
18
16
15
14
13
12
12
11
11
10
11
13
15
18
21
24
26
27
28
29
30
29

Feels Like (°C)

18
18
16
15
13
13
12
12
11
11
10
10
10
10
14
17
20
22
24
25
27
27
28
28

Dew Point (°C)

5
7
8
7
5
5
6
6
6
7
7
7
7
7
6
5
4
3
3
2
2
2
2
2

Relative Humidity (%)

33
42
53
55
49
52
60
65
70
75
77
80
77
66
53
42
32
26
22
20
18
17
16
17

Pressure (mb)

1025
1025
1025
1026
1026
1026
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1023
1023

Ozone (du)

315
316
316
314
313
312
312
312
312
312
312
312
313
312
310
309
308
306
306
305
305
305
305
305

Wednesday 12

New Moon 1%

07:02

21:10

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
09 Good
10 Good
11 Good
12 Good
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK

Sun - Rise: 06:21, Set: 21:09, Transit: 13:44. Moon - Rise: 07:02, Set: 21:10. Civil Dark: 21:48 - 05:42. Nautical Dark: 22:38 - 04:52. Astro Dark: 23:40 - 03:51

Total Clouds (% Sky Obscured)

9
7
5
2
2
2
1
1
1
0
0
0
0
0
0
0
0
1
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
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

9
7
4
1
1
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

28
27
23
22
21
20
19
18
17
17
16
16
17
18
22
25
27
29
31
33
34
35
35
34

Feels Like (°C)

26
26
23
21
19
18
17
17
16
16
15
15
16
18
20
23
25
27
30
31
32
33
33
32

Dew Point (°C)

2
5
8
8
4
4
4
4
4
5
5
5
5
5
3
3
2
2
2
2
2
2
3
2

Relative Humidity (%)

18
24
38
40
34
34
37
39
41
44
46
47
46
40
30
23
20
17
15
14
13
12
13
13

Pressure (mb)

1023
1023
1023
1023
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1020
1019
1019
1018

Ozone (du)

305
305
305
305
305
306
306
306
305
305
304
304
304
304
303
303
303
303
303
304
305
304
304
304

Thursday 13

Waxing Crescent 4%

08:29

21:24

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

Sun - Rise: 06:22, Set: 21:07, Transit: 13:44. Moon - Rise: 08:29, Set: 21:24. Civil Dark: 21:46 - 05:44. Nautical Dark: 22:35 - 04:55. Astro Dark: 23:37 - 03:54

Total Clouds (% Sky Obscured)

0
0
0
0
3
5
7
21
32
45
52
59
66
44
43
39
44
49
54
47
41
31
39
39

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
2
4
6
18
27
38
37
36
35
20
20
13
14
18
19
21
19
17
14
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
13
29
40
0
0
0
17
34
47
29
16
0
22
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
0
0
0
1
5

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

Chance of Frost

Temperature (°C)

34
32
27
25
23
23
22
21
21
20
20
20
20
21
25
28
31
32
34
35
36
36
36
35

Feels Like (°C)

32
30
27
24
22
21
21
20
20
19
19
19
19
21
22
23
24
25
26
27
35
35
34
34

Dew Point (°C)

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

Relative Humidity (%)

14
20
30
33
31
30
34
37
39
40
42
42
44
38
29
23
19
16
14
12
12
11
11
12

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1015
1015
1015
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013

Ozone (du)

304
304
304
303
303
303
303
303
303
303
303
303
303
302
302
302
302
302
303
303
303
303
303
303

Friday 14

Waxing Crescent 10%

09:52

21:37

19 Bad
20 Bad
21 OK
22 OK
23 OK
00 OK
01 Good
02 OK
03 OK
04 OK
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

Sun - Rise: 06:24, Set: 21:05, Transit: 13:43. Moon - Rise: 09:52, Set: 21:37. Civil Dark: 21:43 - 05:46. Nautical Dark: 22:33 - 04:57. Astro Dark: 23:33 - 03:57

Total Clouds (% Sky Obscured)

40
35
30
30
23
20
14
19
28
38
49
61
69
71
69
68
72
78
85
85
83
83
87
91

Low Clouds (% Sky Obscured)

0
0
0
0
1
3
5
8
9
12
13
16
19
18
21
20
21
19
20
21
16
15
13
14

Medium Clouds (% Sky Obscured)

3
5
8
9
7
9
8
11
13
13
16
18
19
20
23
29
47
64
82
61
38
15
23
34

High Clouds (% Sky Obscured)

35
30
30
30
23
20
2
1
1
0
0
0
0
1
1
3
4
6
13
21
29
37
56
74

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 (%)

8
10
10
12
6
1
0
0
0
0
1
2
2
4
4
2
5
11
13
10
17
18
11
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)

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

Chance of Frost

Temperature (°C)

33
31
29
27
25
24
23
22
22
21
21
21
21
21
23
26
29
29
30
30
30
30
30
28

Feels Like (°C)

34
35
30
30
30
28
27
25
21
21
21
20
19
18
20
21
21
22
23
23
28
28
26
28

Dew Point (°C)

2
2
2
2
1
1
2
2
3
2
3
2
2
2
0
-1
-2
-2
-3
-4
-4
-4
-4
-0

Relative Humidity (%)

14
15
17
19
20
22
24
26
28
28
30
29
28
27
21
17
13
12
11
10
10
10
10
15

Pressure (mb)

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

Ozone (du)

303
303
303
303
303
303
302
302
301
301
300
300
300
300
300
300
300
300
301
301
300
300
299
299

Saturday 15

Waxing Crescent 18%

11:11

21:48

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:25, Set: 21:03, Transit: 13:43. Moon - Rise: 11:11, Set: 21:48. Civil Dark: 21:41 - 05:48. Nautical Dark: 22:30 - 04:59. Astro Dark: 23:29 - 04:01

Total Clouds (% Sky Obscured)

96
90
84
79
79
78
79
83
88
93
91
89
87
77
67
60
70
82
91

Low Clouds (% Sky Obscured)

20
17
15
13
12
9
5
5
6
8
7
8
7
13
25
43
49
52
50

Medium Clouds (% Sky Obscured)

45
57
68
74
70
65
62
61
59
58
56
54
56
39
22
5
7
8
9

High Clouds (% Sky Obscured)

94
74
55
35
29
20
17
32
45
63
62
68
73
61
48
29
44
56
64

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
8
8
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

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

Precipitation Probability (%)

1
3
3
1
4
6
3
14
22
26
35
37
36
30
20
0
2
2
3

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

29
30
21
21
22
21
21
19
14
15
16
16
16
16
17
17
18
19
19

Dew Point (°C)

4
7
9
10
12
13
13
13
12
12
12
13
14
14
13
12
11
11
10

Relative Humidity (%)

23
34
42
52
63
69
72
77
77
78
79
81
83
86
73
62
54
49
45

Pressure (mb)

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

Ozone (du)

299
299
301
303
305
305
305
305
305
306
306
309
311
314
314
315
315
315
315

Forecast for Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 09/08/26 19:05:53. Forecast: 09/08/26 to 15/08/26. Timezone: UTC+2.00