Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 9

Waxing Gibbous 80%

12:31

04:07

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 OK
21 Bad
22 Bad
23 OK
00 Bad
01 Bad

Sun - Rise: 08:40, Set: 16:48, Transit: 12:44. Moon - Rise: 12:31, Set: 04:07. Civil Dark: 17:27 - 08:01. Nautical Dark: 18:10 - 07:18. Astro Dark: 18:50 - 06:38

Total Clouds (% Sky Obscured)

100
95
92
98
100
100
100
100
98
76
93
94
51
33
91
97
99
81
10
53
55
37
35
52

Low Clouds (% Sky Obscured)

84
86
80
85
78
59
55
64
46
73
90
68
48
33
4
7
20
1
1
45
48
37
35
52

Medium Clouds (% Sky Obscured)

100
95
92
98
98
100
100
100
96
66
62
90
23
0
43
97
99
81
10
51
31
2
2
1

High Clouds (% Sky Obscured)

97
19
36
71
1
0
10
15
15
10
10
20
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
2
2
9
9
9
9
6
0
1
9
9
9
9
8
7
7
8
8
9
9
9
9
9

Fog (%)

31
96
63
19
27
67
51
0
13
64
23
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

3
4
7
47
43
48
53
74
75
52
18
24
26
19
16
28
26
18
14
4
1
0
1
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
94
94
94
94
91
100
96
91
91
88
73
76
82
85
80
78
76
78
83
88
89

Pressure (mb)

999
998
998
998
998
999
1000
1000
1000
1001
1002
1002
1003
1004
1005
1006
1008
1009
1010
1011
1012
1013
1014
1014

Ozone (du)

361
357
350
349
345
353
358
355
358
364
369
375
374
371
369
367
373
376
376
373
371
368
367
365

Friday 10

Waxing Gibbous 89%

12:59

05:36

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 OK
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: 08:40, Set: 16:49, Transit: 12:44. Moon - Rise: 12:59, Set: 05:36. Civil Dark: 17:28 - 08:00. Nautical Dark: 18:11 - 07:18. Astro Dark: 18:51 - 06:37

Total Clouds (% Sky Obscured)

50
54
54
64
66
52
48
62
74
73
56
45
48
53
51
57
68
50
64
66
79
85
86
92

Low Clouds (% Sky Obscured)

50
54
51
58
63
49
44
62
74
73
56
45
48
53
51
52
66
50
64
66
79
82
82
83

Medium Clouds (% Sky Obscured)

0
10
7
11
3
4
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
1
16
15
1
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 (%)

10
12
9
0
0
0
0
0
1
3
7
2
2
2
5
3
1
2
1
4
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
12
11
11
11
11
10
10
10
9
10
10
10
9
8
7
7
7
5
6
6
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
84
86
87
89
91
91
89
86
85
80
82
85
89
93
93
93
91
89
89
86
86
88

Pressure (mb)

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

Ozone (du)

356
345
339
335
332
330
326
321
317
317
317
314
311
312
315
317
319
322
325
326
325
326
330
327

Saturday 11

Waxing Gibbous 95%

13:41

06:59

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 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 Good
00 Good
01 Good

Sun - Rise: 08:39, Set: 16:51, Transit: 12:45. Moon - Rise: 13:41, Set: 06:59. Civil Dark: 17:30 - 08:00. Nautical Dark: 18:12 - 07:17. Astro Dark: 18:52 - 06:37

Total Clouds (% Sky Obscured)

85
63
76
75
74
87
91
87
87
78
72
69
68
63
30
31
26
32
36
43
29
15
0
1

Low Clouds (% Sky Obscured)

81
58
73
75
74
87
91
87
87
78
72
69
68
59
30
29
24
31
36
43
29
15
0
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
13
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
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
91
91
91
91
91
89
87
81
78
77
74
77
82
84
86
86
88
86
86
86
86
87

Pressure (mb)

1022
1023
1023
1024
1024
1025
1026
1027
1027
1028
1028
1029
1029
1029
1030
1030
1031
1032
1033
1033
1034
1035
1035
1036

Ozone (du)

323
318
314
314
315
314
316
317
320
324
328
331
333
334
335
336
337
339
336
334
328
323
322
319

Sunday 12

Waxing Gibbous 99%

14:40

08:08

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

Sun - Rise: 08:38, Set: 16:52, Transit: 12:45. Moon - Rise: 14:40, Set: 08:08. Civil Dark: 17:31 - 07:59. Nautical Dark: 18:13 - 07:17. Astro Dark: 18:54 - 06:37

Total Clouds (% Sky Obscured)

1
1
1
2
1
28
58
86
94
89
83
56
28
0
33
64
96
96
96
87
89
97
77
91

Low Clouds (% Sky Obscured)

1
1
1
1
1
28
55
86
90
89
83
56
28
0
33
64
96
96
95
86
86
81
77
69

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
2
2
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
12
5
40

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
87
87
87
87
89
86
83
77
75
74
74
78
84
89
91
91
92
92
92
94
94
96

Pressure (mb)

1036
1037
1038
1038
1038
1039
1039
1040
1041
1041
1041
1041
1041
1042
1042
1042
1043
1043
1043
1043
1043
1043
1043
1043

Ozone (du)

313
311
306
308
310
309
311
314
311
308
304
301
300
296
291
292
294
295
295
294
293
292
289
289

Monday 13

Full Moon 100%

15:55

08:58

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 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:37, Set: 16:54, Transit: 12:45. Moon - Rise: 15:55, Set: 08:58. Civil Dark: 17:32 - 07:59. Nautical Dark: 18:15 - 07:16. Astro Dark: 18:55 - 06:36

Total Clouds (% Sky Obscured)

74
76
82
90
99
99
94
86
91
93
74
67
58
51
67
80
96
97
99
100
92
85
77
78

Low Clouds (% Sky Obscured)

68
68
76
84
85
67
50
37
35
14
2
2
2
2
2
2
1
10
20
30
31
30
28
32

Medium Clouds (% Sky Obscured)

5
13
5
17
6
10
43
39
39
27
24
27
28
18
12
9
13
6
3
13
12
18
21
35

High Clouds (% Sky Obscured)

13
20
33
56
89
92
94
86
86
76
63
42
21
0
27
53
80
87
93
100
72
44
17
13

ISS Passover

Visibility (miles)

2
2
8
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
1
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
6
6
6
6
6
6
7
6
6
6
6
6
6
6
7
7
7
7
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-6
-6
-5
-6
-6
-6
-6
-5
-5
-4
-2
-2
-2
-2
-2
-2
-2
-4
-4
-4
-4
-4
-4

Dew Point (°C)

-3
-3
-3
-3
-3
-3
-3
-4
-4
-5
-5
-5
-4
-4
-3
-4
-4
-4
-5
-5
-5
-5
-5
-6

Relative Humidity (%)

96
96
94
91
89
92
92
91
84
77
70
66
69
71
74
75
75
77
75
74
74
71
70
68

Pressure (mb)

1043
1043
1042
1042
1042
1041
1041
1041
1041
1041
1040
1040
1039
1039
1038
1038
1038
1038
1038
1038
1038
1037
1037
1036

Ozone (du)

288
287
285
286
291
289
287
285
282
282
281
281
281
281
281
282
283
283
285
286
287
287
288
289

Tuesday 14

Waning Gibbous 99%

17:17

09:32

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 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:37, Set: 16:55, Transit: 12:46. Moon - Rise: 17:17, Set: 09:32. Civil Dark: 17:34 - 07:58. Nautical Dark: 18:16 - 07:16. Astro Dark: 18:56 - 06:36

Total Clouds (% Sky Obscured)

81
86
91
96
100
99
97
96
91
83
74
82
90
99
98
97
97
94
92
88
93
96
100
97

Low Clouds (% Sky Obscured)

38
39
43
46
50
50
55
55
70
69
69
79
89
99
97
95
94
90
86
82
88
94
100
97

Medium Clouds (% Sky Obscured)

48
61
54
47
41
26
13
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0

High Clouds (% Sky Obscured)

9
5
9
14
22
21
15
19
14
8
3
11
18
15
5
5
5
4
4
3
3
2
2
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
5
3
0

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
2
4
4
2
1
0
2
2
0
1
2
2
5
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-5
-5
-5
-5
-5
-4
-4
-4
-4
-4
-0
0
0
-1
-1
-1
-1
-0
-0
-0
-0
-0

Dew Point (°C)

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

Relative Humidity (%)

67
66
65
69
71
74
75
80
81
84
85
86
88
93
94
96
96
98
98
100
100
100
100
100

Pressure (mb)

1036
1036
1036
1035
1035
1035
1035
1035
1036
1036
1036
1036
1036
1035
1035
1036
1036
1036
1036
1037
1037
1037
1037
1037

Ozone (du)

290
290
291
287
284
281
279
277
275
276
276
277
277
276
276
275
274
272
272
273
273
273
272
272

Wednesday 15

Waning Gibbous 97%

18:39

09:54

Sun - Rise: 08:36, Set: 16:57, Transit: 12:46. Moon - Rise: 18:39, Set: 09:54. Civil Dark: 17:35 - 07:57. Nautical Dark: 18:17 - 07:15. Astro Dark: 18:57 - 06:35

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 Grave, Gemeente Grave, Netherlands (51.76,5.74)

Generated: 09/01/25 02:48:56. Forecast: 09/01/25 to 15/01/25. Timezone: UTC+1.00