Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

New Moon 2%

09:49

17:24

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 OK
12 Good
13 OK
14 OK
15 OK
16 Bad
17 Bad
18 OK

Sun - Rise: 08:15, Set: 16:30, Transit: 12:23. Moon - Rise: 09:49, Set: 17:24. Civil Dark: 17:07 - 07:38. Nautical Dark: 17:48 - 06:57. Astro Dark: 18:26 - 06:19

Total Clouds (% Sky Obscured)

99
100
98
89
67
70
90
99
100
99
95
99
100
91
88
97
28
13
25
33
37
51
51
42

Low Clouds (% Sky Obscured)

16
28
24
10
4
2
1
3
2
0
0
0
3
0
0
15
0
0
10
19
20
15
11
0

Medium Clouds (% Sky Obscured)

64
69
67
69
55
65
83
90
86
70
79
53
62
59
50
57
16
4
14
18
20
19
0
0

High Clouds (% Sky Obscured)

5
4
4
22
22
26
76
96
99
95
78
97
80
57
67
25
7
5
3
2
3
22
27
21

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
1
2
3
2
0
0
0
1
2
3
0
0
1
2
2
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
3
4
2
1
1
1
1
-0
1
-0
-1
-1
-1
-0
1
3
5
5
4
3
1
-1

Dew Point (°C)

5
4
3
2
0
-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-1
-1
-1
-1
-0
1
1
-0
-1

Relative Humidity (%)

81
82
79
78
75
73
72
72
73
74
76
77
77
77
78
74
71
66
65
66
72
80
83
86

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1012
1012
1011
1010
1010
1010
1009
1009

Ozone (du)

277
277
279
278
278
278
277
279
279
279
281
282
281
282
283
284
284
283
282
283
282
277
276
275

Sunday 21

Waxing Crescent 6%

10:22

18:36

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

Sun - Rise: 08:15, Set: 16:31, Transit: 12:23. Moon - Rise: 10:22, Set: 18:36. Civil Dark: 17:08 - 07:38. Nautical Dark: 17:48 - 06:58. Astro Dark: 18:27 - 06:19

Total Clouds (% Sky Obscured)

51
32
18
17
45
92
93
91
73
48
72
67
66
56
45
57
55
68
71
54
78
52
59
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
0
16
17
21
22
11
0
15

Medium Clouds (% Sky Obscured)

0
0
2
1
41
85
83
77
60
30
42
46
45
43
44
44
27
2
4
1
0
1
3
3

High Clouds (% Sky Obscured)

29
13
4
7
14
38
46
40
27
23
43
25
20
10
10
10
15
15
21
12
56
37
46
100

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
1
2
1
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
1
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
4
4
4
4
4
5
5
5
5
4
4
4
3
3
3
4
3
3
3
3
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-2
-2
-2
-2
-3
-4
-4
-4
-4
-3
-4
-4
-4
-5
-3
-1
-0
1
1
1
1
-0
-2

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
87
87
86
84
83
84
86
86
86
84
86
83
81
77
74
73
74
77
85
88
88

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1009
1009

Ozone (du)

275
275
278
279
281
280
285
286
288
290
295
297
301
303
307
312
321
330
338
346
352
360
362
365

Monday 22

Waxing Crescent 12%

10:47

No Set

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:16, Set: 16:31, Transit: 12:24. Moon - Rise: 10:47, Set: No Set. Civil Dark: 17:08 - 07:39. Nautical Dark: 17:49 - 06:58. Astro Dark: 18:27 - 06:20

Total Clouds (% Sky Obscured)

100
69
71
75
77
85
89
90
94
93
94
97
97
99
99
100
99
91
99
99
93
85
96
100

Low Clouds (% Sky Obscured)

15
12
17
19
20
24
28
31
35
37
37
37
39
42
37
37
38
39
42
62
65
79
95
100

Medium Clouds (% Sky Obscured)

4
27
19
18
17
8
15
16
14
22
16
53
52
78
82
64
48
46
46
40
30
22
10
0

High Clouds (% Sky Obscured)

100
64
61
60
65
72
72
75
77
64
64
49
68
86
61
100
99
91
89
80
55
29
34
37

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
3
8
10
17
33
81
87
93
93
93
93
93
93
93
93
93
93
93
93

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
86
86
86
87
86
86
86
87
89
89
89
92
91
87
84
81
80
80
84
93
94
89

Pressure (mb)

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

Ozone (du)

368
370
371
372
373
374
376
378
380
380
382
384
386
387
385
384
384
383
383
382
378
377
378
377

Tuesday 23

Waxing Crescent 19%

11:07

19:50

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:16, Set: 16:32, Transit: 12:24. Moon - Rise: 11:07, Set: 19:50. Civil Dark: 17:09 - 07:39. Nautical Dark: 17:49 - 06:59. Astro Dark: 18:28 - 06:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
97
96
95
97
97
98
99
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
96
93
89
88
91
91
91
92
92

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
12
23
35
41
47
53
57
57
52
55
57
55

High Clouds (% Sky Obscured)

26
14
3
4
6
7
7
9
10
7
4
0
0
0
0
10
20
30
20
10
0
23
50
65

ISS Passover

Visibility (miles)

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

Fog (%)

93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
None
None
None
Snow
None
Snow
Snow

Precipitation Probability (%)

2
3
4
6
8
12
10
12
14
18
22
29
28
30
34
34
39
38
38
38
38
39
41
46

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0.1
0
0.1
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-1
-1
0
0
0
0
0
0
-1
-1
-1
-2
-2
-3
-3
-4
-5
-6
-6
-6
-6
-6
-6

Relative Humidity (%)

83
84
83
86
88
89
89
93
93
91
89
91
89
89
87
86
81
74
68
67
68
70
72
72

Pressure (mb)

1014
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020
1020
1019
1019
1020
1020
1020

Ozone (du)

377
373
370
370
372
375
374
377
379
383
383
385
388
390
397
398
401
398
400
412
419
421
420
418

Wednesday 24

Waxing Crescent 28%

11:24

21:05

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:17, Set: 16:33, Transit: 12:25. Moon - Rise: 11:24, Set: 21:05. Civil Dark: 17:10 - 07:39. Nautical Dark: 17:50 - 06:59. Astro Dark: 18:28 - 06:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
90
85

Low Clouds (% Sky Obscured)

95
98
100
100
100
100
100
100
98
91
100
100
100
100
100
100
100
100
92
82
71
58
42
25

Medium Clouds (% Sky Obscured)

38
27
15
15
11
10
12
85
87
88
86
19
7
7
6
6
7
7
23
39
51
43
40
39

High Clouds (% Sky Obscured)

40
20
0
0
0
0
1
1
1
1
1
0
1
1
1
4
5
7
8
8
10
9
8
15

ISS Passover

Visibility (miles)

9
9
9
7
5
2
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93

Precipitation Type

None
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

37
34
34
34
24
16
16
15
13
19
21
22
12
15
17
14
12
10
10
9
7
9
9
7

Precipitation Amount (mm)

0
0
0
0.1
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
12
13
13
13
13
12
12
12
12
11
10
10
10
10
10
9
9
9
7
6
5
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-8
-8
-8
-9
-9
-8
-8
-9
-9
-9
-9
-8
-9
-9
-9
-9
-9
-10
-6
-6
-6
-5
-5

Dew Point (°C)

-6
-6
-6
-6
-6
-6
-7
-7
-8
-8
-8
-8
-6
-6
-7
-6
-6
-6
-6
-6
-5
-5
-4
-4

Relative Humidity (%)

72
72
74
75
76
75
72
69
65
64
64
64
72
72
71
72
70
67
67
67
70
72
77
81

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1020
1019
1019
1019
1019
1019
1019
1020
1020

Ozone (du)

418
419
417
416
415
412
405
402
400
399
395
392
388
386
384
382
380
379
377
375
374
372
369
366

Thursday 25

Waxing Crescent 38%

11:39

22:19

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

Sun - Rise: 08:17, Set: 16:33, Transit: 12:25. Moon - Rise: 11:39, Set: 22:19. Civil Dark: 17:10 - 07:40. Nautical Dark: 17:51 - 06:59. Astro Dark: 18:29 - 06:21

Total Clouds (% Sky Obscured)

64
44
19
18
22
21
21
21
21
21
26
27
39
62
77
84
88
93
87
74
63
53
47
45

Low Clouds (% Sky Obscured)

24
19
15
15
15
15
15
15
15
15
16
16
26
32
43
56
71
84
70
54
40
30
21
7

Medium Clouds (% Sky Obscured)

28
9
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)

11
7
1
1
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 (%)

93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93

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 (%)

7
7
1
3
4
3
4
4
4
5
5
5
5
4
3
3
2
0
3
4
4
3
3
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)

3
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-5
-5
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-3
-4
-4
-2
-2
-2
-2
-1

Dew Point (°C)

-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-3
-2
-2
-2
-2

Relative Humidity (%)

84
87
89
91
91
91
91
91
92
92
92
94
94
91
89
87
83
80
75
80
84
89
89
91

Pressure (mb)

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

Ozone (du)

363
362
361
360
362
363
365
365
365
366
365
365
364
365
366
366
365
364
363
364
365
366
367
367

Friday 26

Waxing Crescent 49%

11:53

23:35

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

Sun - Rise: 08:17, Set: 16:34, Transit: 12:26. Moon - Rise: 11:53, Set: 23:35. Civil Dark: 17:11 - 07:40. Nautical Dark: 17:51 - 07:00. Astro Dark: 18:30 - 06:21

Total Clouds (% Sky Obscured)

63
81
85
87
85
83
81
67
61
63
65
66
66
57
57
56
56
55

Low Clouds (% Sky Obscured)

6
6
5
14
18
27
34
34
41
42
43
48
48
40
40
37
39
35

Medium Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93
93

Precipitation Type

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

Precipitation Probability (%)

2
1
0
1
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

Wind Speed/Direction (mph)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-3
-2
-2
-2
-2
-2
-3
-2
-3
-2
-2
-2
-3
-3
-3
-3
-3

Dew Point (°C)

-2
-3
-2
-2
-3
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3

Relative Humidity (%)

92
92
92
92
92
92
92
91
91
91
92
92
92
91
91
89
84
83

Pressure (mb)

1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1029
1029
1029
1029
1030
1030
1030
1030

Ozone (du)

367
366
365
364
364
364
363
367
370
373
373
373
374
372
371
369
369
370

Forecast for Friolzheim, Karlsruhe Region, Germany (48.84,8.84)

Generated: 20/12/25 19:45:11. Forecast: 20/12/25 to 26/12/25. Timezone: UTC+1.00