Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 9

New Moon 0%

09:39

16:23

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

Sun - Rise: 07:54, Set: 16:59, Transit: 12:25. Moon - Rise: 09:39, Set: 16:23. Civil Dark: 17:35 - 07:17. Nautical Dark: 18:16 - 06:36. Astro Dark: 18:56 - 05:57

Total Clouds (% Sky Obscured)

3
5
7
15
3
10
11
10
1
12
20
30
40
46
55
50
55
62
67
65
64
74
85
96

Low Clouds (% Sky Obscured)

3
5
7
15
3
4
2
1
1
11
18
27
40
46
55
50
55
55
55
55
48
45
45
47

Medium Clouds (% Sky Obscured)

0
0
0
0
0
5
9
9
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
2
2
0
2
14
44
85

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
27
95
97
87
100
99
88
90
94
81
92
97

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 (%)

1
1
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
6
5
4
3
4
4
4
4
4
4
4
4
4
4
5
5
5
4
5
5
5
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
9
10
10
9
8
7
6
6
5
4
4
4
4
3
2
2
2
2
2
2
2
2
3

Dew Point (°C)

3
3
3
3
4
4
4
3
3
3
2
2
2
2
1
1
1
1
1
1
1
1
1
1

Relative Humidity (%)

67
63
62
63
68
77
81
82
82
83
83
85
86
86
86
86
88
86
86
86
88
85
76
71

Pressure (mb)

1019
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1013
1013
1014
1014
1014
1013

Ozone (du)

264
264
263
261
256
256
258
263
267
265
264
261
257
255
251
248
247
248
247
246
245
245
244
244

Tuesday 10

Waxing Crescent 2%

10:47

16:50

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:56, Set: 16:57, Transit: 12:25. Moon - Rise: 10:47, Set: 16:50. Civil Dark: 17:34 - 07:19. Nautical Dark: 18:15 - 06:38. Astro Dark: 18:54 - 05:58

Total Clouds (% Sky Obscured)

100
93
100
100
100
100
97
100
100
100
100
100
99
100
100
100
100
100
100
100
100
99
100
100

Low Clouds (% Sky Obscured)

29
24
20
47
53
50
49
43
45
46
51
51
66
85
87
74
65
82
46
37
36
31
33
35

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
15
66
69
90
95
96
97
98
100
98
100
100
97
99
97
92
92
71

High Clouds (% Sky Obscured)

100
91
100
100
100
99
92
99
100
95
100
78
59
100
100
100
100
100
99
62
63
76
95
95

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 (%)

58
3
2
2
2
2
2
1
1
2
2
2
1
1
1
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
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
4
10
17
46
57
60
58
59
35
25
16
3
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
7
8
7
7
7
7
7
7
7
7
7
7
6
6
6
7
7
7
6
7
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
2
2
2
3
3
3
3
3
2
2
1
1
2
2
3
2
2
2
2
3
3
2
2

Relative Humidity (%)

69
66
65
68
73
78
81
82
83
82
80
78
76
79
82
85
82
82
82
82
82
80
76
70

Pressure (mb)

1013
1012
1012
1011
1010
1010
1010
1009
1009
1008
1008
1007
1007
1007
1006
1005
1005
1004
1004
1004
1005
1005
1005
1005

Ozone (du)

243
244
246
247
250
253
253
253
250
249
251
252
251
247
245
248
247
246
244
242
242
242
240
243

Wednesday 11

Waxing Crescent 5%

11:44

17:27

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:57, Set: 16:55, Transit: 12:26. Moon - Rise: 11:44, Set: 17:27. Civil Dark: 17:32 - 07:20. Nautical Dark: 18:13 - 06:39. Astro Dark: 18:53 - 05:59

Total Clouds (% Sky Obscured)

93
92
86
86
83
62
55
68
78
88
98
95
78
92
85
74
88
89
92
94
95
78
92
80

Low Clouds (% Sky Obscured)

30
30
29
2
21
2
0
16
47
69
57
62
38
45
67
72
85
86
91
94
95
75
91
77

Medium Clouds (% Sky Obscured)

29
30
12
16
34
38
35
53
51
49
61
50
48
54
31
0
0
0
0
13
25
38
25
11

High Clouds (% Sky Obscured)

52
63
62
79
66
21
31
32
0
15
35
0
0
2
2
4
1
0
0
0
2
2
3
3

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
13
13
13
13
13
13
13
13
13
13
13

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
1
2
1
4
4
3
12
2
2
0
3
6
18
19
23
12
22
17
15
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)

7
8
7
6
4
3
3
3
3
3
3
2
1
1
1
2
2
3
3
4
7
4
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
65
65
68
74
79
82
82
83
83
83
83
82
78
76
75
68
64
69
72
76
70
68
62

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006

Ozone (du)

244
243
243
244
245
249
247
245
243
242
244
246
247
246
246
245
244
243
244
246
246
243
242
244

Thursday 12

Waxing Crescent 10%

No Rise

18:17

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

Sun - Rise: 07:58, Set: 16:55, Transit: 12:26. Moon - Rise: No Rise, Set: 18:17. Civil Dark: 17:32 - 07:21. Nautical Dark: 18:13 - 06:40. Astro Dark: 18:52 - 06:00

Total Clouds (% Sky Obscured)

29
49
54
57
65
31
48
49
36
36
55
52
57
52
55
41
57
61
60
44
52
62
58
59

Low Clouds (% Sky Obscured)

29
46
47
47
64
19
48
49
36
36
55
51
57
52
55
39
50
55
51
44
52
62
58
59

Medium Clouds (% Sky Obscured)

0
6
11
18
14
9
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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
14
18
5
12
9
13
12
7
3
16
16
18
16
17
14
16
8
2
5
15
7
17
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-1
0
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-1
-2
-1
-1
-2
-2
-1
-1
-1

Relative Humidity (%)

51
45
45
49
53
54
54
56
54
54
54
55
57
58
59
60
58
60
64
58
56
56
53
49

Pressure (mb)

1006
1006
1006
1006
1006
1007
1007
1008
1008
1008
1008
1008
1009
1009
1009
1009
1010
1010
1011
1011
1012
1013
1014
1014

Ozone (du)

247
245
244
244
245
250
250
251
251
250
250
253
256
259
261
263
266
269
270
270
269
269
270
272

Friday 13

Waxing Crescent 17%

12:29

19:17

12 Bad
13 Bad
14 Bad
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 OK
09 OK
10 OK
11 Good

Sun - Rise: 08:00, Set: 16:53, Transit: 12:26. Moon - Rise: 12:29, Set: 19:17. Civil Dark: 17:30 - 07:23. Nautical Dark: 18:11 - 06:42. Astro Dark: 18:51 - 06:02

Total Clouds (% Sky Obscured)

45
52
44
34
46
39
48
59
64
71
80
89
98
97
95
94
79
65
51
43
35
26
21
15

Low Clouds (% Sky Obscured)

44
52
44
34
46
26
45
59
64
71
80
89
97
94
90
87
75
62
48
39
29
19
14
9

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
10
20
30
29
28
28
18
9
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
1
1
2
2
3
5
6
6
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
9
9
9
9

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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 (%)

11
18
15
20
19
19
16
17
9
11
3
4
1
5
7
7
12
12
12
10
8
0
0
1

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
9
10
8
7
6
4
3
3
3
2
2
2
2
2
2
3
3
3
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
7
6
7
6
5
6
5
5
5
5
4
4
5
5
5
6
5
5
4
5
4
4

Dew Point (°C)

0
1
0
1
1
1
2
2
2
2
1
1
1
0
1
1
1
1
1
0
1
1
1
1

Relative Humidity (%)

50
52
49
52
55
62
66
69
70
69
66
65
66
66
68
70
71
72
73
72
72
71
70
64

Pressure (mb)

1015
1015
1016
1016
1017
1018
1018
1019
1020
1020
1021
1021
1021
1022
1022
1022
1022
1023
1023
1023
1023
1024
1024
1024

Ozone (du)

274
276
277
278
280
281
282
281
280
279
279
280
281
281
280
280
280
280
280
280
278
276
274
273

Saturday 14

Waxing Crescent 24%

13:01

20:26

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

Sun - Rise: 08:02, Set: 16:52, Transit: 12:26. Moon - Rise: 13:01, Set: 20:26. Civil Dark: 17:29 - 07:25. Nautical Dark: 18:10 - 06:43. Astro Dark: 18:50 - 06:03

Total Clouds (% Sky Obscured)

10
10
9
7
13
19
27
49
71
93
91
93
91
81
76
61
56
42
33
39
49
54
59
59

Low Clouds (% Sky Obscured)

6
5
4
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
2
4
6
22
31

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
15
15
15

High Clouds (% Sky Obscured)

4
5
6
7
11
15
20
40
61
85
91
93
90
81
76
61
56
42
33
39
49
54
59
59

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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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
1
4
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
21

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
9
8
9
8
8
7
4
3
3
3
3
3
1
0
0
-0
0
-0
-1
-1
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

60
55
57
60
62
66
71
75
76
76
77
73
72
68
68
70
70
70
69
69
65
61
58
56

Pressure (mb)

1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1020
1019
1019
1018
1017
1016
1016
1015
1014
1014
1013
1012

Ozone (du)

272
271
271
270
270
269
267
266
267
267
268
267
267
266
266
265
265
265
265
264
264
263
262
263

Sunday 15

Waxing Crescent 33%

13:25

21:39

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: 08:04, Set: 16:50, Transit: 12:26. Moon - Rise: 13:25, Set: 21:39. Civil Dark: 17:28 - 07:26. Nautical Dark: 18:09 - 06:45. Astro Dark: 18:49 - 06:05

Total Clouds (% Sky Obscured)

59
67
74
82
87
92
98
98
99
99
100
100
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

39
48
54
63
69
75
82
79
77
76
69
66
67
73
76
84
90
92
94

Medium Clouds (% Sky Obscured)

20
17
13
1
26
50
76
82
88
94
80
62
43
58
72
87
91
96
100

High Clouds (% Sky Obscured)

59
67
74
79
64
60
63
63
62
62
58
53
48
59
62
63
72
84
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
6
4

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

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

Precipitation Probability (%)

29
41
45
35
30
24
23
36
51
65
64
50
19
28
44
59
74
83
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0.2
0.4
0.5
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
8
8
9
9
9
10
10
10
11
11
11
11
11
11
12
12
12
12

Feels Like (°C)

-1
-0
5
5
5
5
5
5
5
6
6
7
7
8
8
9
9
9
8

Dew Point (°C)

-2
-1
1
2
3
5
6
7
8
8
9
9
10
10
10
11
11
11
11

Relative Humidity (%)

55
53
59
63
67
73
78
85
85
85
87
88
90
92
93
96
96
96
96

Pressure (mb)

1011
1010
1010
1009
1009
1008
1008
1008
1007
1007
1006
1005
1004
1003
1002
1001
1000
999
998

Ozone (du)

263
263
265
267
269
271
274
277
277
277
277
275
272
270
270
270
270
268
266

Forecast for Leiden, Gemeente Leiden, Netherlands (52.16,4.50)

Generated: 09/11/26 12:47:23. Forecast: 09/11/26 to 15/11/26. Timezone: UTC+1.00