Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 25

Waxing Crescent 45%

10:30

00:19

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:27, Set: 17:04, Transit: 12:46. Moon - Rise: 10:30, Set: 00:19. Civil Dark: 17:43 - 07:48. Nautical Dark: 18:25 - 07:06. Astro Dark: 19:06 - 06:25

Total Clouds (% Sky Obscured)

94
96
99
98
98
87
71
85
95
97
99
92
95
100
100
100
100
100
100
100
100
99
100
100

Low Clouds (% Sky Obscured)

94
91
86
76
68
65
63
70
70
86
86
87
90
90
86
81
76
72
76
72
80
78
76
76

Medium Clouds (% Sky Obscured)

0
51
76
91
94
61
17
12
0
35
95
27
57
100
98
100
100
100
100
94
95
96
95
84

High Clouds (% Sky Obscured)

59
96
88
89
42
2
2
46
86
55
1
2
5
45
100
100
86
59
46
53
61
20
67
48

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
4
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
10
10
10
10
11
10
11
11
11
12
12
12
12
12
12
11
12
11
11
11
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
86
84
86
84
91
92
92
91
84
78
72
72
74
78
83
87
91
89
89
87
89
91

Pressure (mb)

1004
1004
1004
1004
1003
1003
1002
1002
1002
1002
1002
1002
1002
1001
1001
1001
1001
1001
1000
1000
1001
1001
1001
1001

Ozone (du)

394
394
394
396
400
402
406
409
411
411
408
409
411
413
412
410
409
409
411
413
415
414
414
414

Monday 26

First Quarter 56%

10:44

01:47

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:26, Set: 17:06, Transit: 12:46. Moon - Rise: 10:44, Set: 01:47. Civil Dark: 17:45 - 07:47. Nautical Dark: 18:27 - 07:05. Astro Dark: 19:08 - 06:24

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
98
99
99
100
99
98
96
91
97
96
94
93
87
90
98

Low Clouds (% Sky Obscured)

81
77
100
100
100
98
100
100
98
89
89
87
86
85
86
80
87
93
90
87
81
80
87
97

Medium Clouds (% Sky Obscured)

98
100
94
98
100
100
100
100
100
75
81
67
74
73
94
69
25
35
39
46
37
28
28
59

High Clouds (% Sky Obscured)

93
96
100
100
96
100
69
52
36
21
81
89
48
62
23
19
9
0
0
0
0
3
10
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
0
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
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
2
0
5
5
4
8
19
34
43
43
45
44
31
19
6
12
20
11
6
4
4

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
9
10
11
11
11
12
13
13
13
15
15
14
14
13
12
11
8
6
7
7
7
6

Chance of Frost

Temperature (°C)

-1
-1
-1
-0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
92
92
87
89
91
92
91
91
91
93
94
96
96
96
96
96
96
98
98
98
98
98
98

Pressure (mb)

1001
1001
1001
1001
1001
1001
1001
1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1003
1003

Ozone (du)

416
418
420
421
423
426
430
435
434
434
432
431
429
429
430
431
431
426
421
419
419
420
420
422

Tuesday 27

Waxing Gibbous 68%

11:05

03:18

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:24, Set: 17:08, Transit: 12:46. Moon - Rise: 11:05, Set: 03:18. Civil Dark: 17:46 - 07:46. Nautical Dark: 18:29 - 07:03. Astro Dark: 19:09 - 06:23

Total Clouds (% Sky Obscured)

94
95
97
92
98
100
95
91
85
100
100
100
100
100
100
100
100
100
89
100
100
100
100
100

Low Clouds (% Sky Obscured)

88
94
97
89
98
100
95
91
85
91
94
94
81
69
63
64
65
64
54
59
65
66
74
95

Medium Clouds (% Sky Obscured)

50
24
16
10
0
4
0
0
0
0
11
70
60
52
38
95
70
100
68
95
99
99
76
93

High Clouds (% Sky Obscured)

17
10
10
10
10
15
10
15
45
98
96
100
100
98
100
100
100
100
68
100
100
100
100
100

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
7
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
Snow
Snow
Snow
Snow

Precipitation Probability (%)

3
5
7
7
5
15
4
13
17
8
4
0
0
0
0
0
0
0
6
25
40
53
53
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.3
0.2
0.1

Wind Speed/Direction (mph)

6
5
5
5
4
5
6
9
10
9
9
11
15
13
14
15
16
16
16
16
16
16
14
13

Chance of Frost

Temperature (°C)

0
0
0
0
0
-0
-0
0
-0
-0
0
0
1
1
1
1
1
0
0
-0
0
0
0
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
100
98
98
98
98
98
94
94
92
89
88
84
84
84
88
91
92
91
89
89
89
89

Pressure (mb)

1003
1003
1002
1002
1002
1001
1001
1000
999
999
999
998
997
996
995
995
994
993
993
992
992
992
992
993

Ozone (du)

423
426
432
445
447
437
423
410
402
397
393
385
377
376
375
373
371
369
369
370
371
368
367
365

Wednesday 28

Waxing Gibbous 79%

11:36

04:50

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:23, Set: 17:10, Transit: 12:46. Moon - Rise: 11:36, Set: 04:50. Civil Dark: 17:48 - 07:44. Nautical Dark: 18:30 - 07:02. Astro Dark: 19:11 - 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
100
100
100

Low Clouds (% Sky Obscured)

94
95
98
100
100
100
100
100
100
100
95
90
85
86
87
89
85
77
73
79
84
87
92
98

Medium Clouds (% Sky Obscured)

90
93
97
100
100
99
99
99
99
99
99
100
100
100
100
99
100
100
100
100
99
100
54
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
78
53
26
50
75
100
100
100
100
100
100
100
100
98
96
100
100

ISS Passover

Visibility (miles)

9
9
8
9
6
5
9
8
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

51
52
52
58
44
43
24
30
27
21
29
32
26
33
37
34
38
42
46
39
37
39
46
55

Precipitation Amount (mm)

0
0
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.2
0.1
0.1
0.1
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
-0
-0
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
89
91
94
94
96
96
94
96
96
93
91
93
93
92
94
92
96
96
96
96
96
96

Pressure (mb)

993
993
993
993
994
994
994
995
995
996
996
997
997
997
998
998
998
998
998
998
999
999
999
999

Ozone (du)

363
359
356
356
356
357
356
359
363
366
370
372
373
375
378
385
391
399
409
414
423
430
434
441

Thursday 29

Waxing Gibbous 88%

12:25

06:13

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:21, Set: 17:12, Transit: 12:46. Moon - Rise: 12:25, Set: 06:13. Civil Dark: 17:50 - 07:43. Nautical Dark: 18:32 - 07:01. Astro Dark: 19:13 - 06:20

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
100
100
99

Low Clouds (% Sky Obscured)

100
99
96
89
97
99
100
98
89
82
83
83
86
90
93
96
98
99
100
100
100
100
99
99

Medium Clouds (% Sky Obscured)

93
52
64
99
88
95
95
97
98
100
100
100
100
100
99
98
86
72
46
29
16
12
16
15

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
99
96
95
95
100
100
100
100
100
100
64
31

ISS Passover

Visibility (miles)

9
9
9
9
9
5
9
9
9
9
9
9
9
9
6
3
0
0
0
0
3
6
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

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

Precipitation Probability (%)

67
64
65
63
58
48
35
34
30
21
30
38
44
65
58
50
43
36
23
22
14
4
6
6

Precipitation Amount (mm)

0.4
0.3
0.3
0.3
0.3
0.2
0
0
0
0
0
0.1
0.2
0.4
0.3
0.2
0.1
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
13
13
13
14
14
14
14
13
13
13
13
13
13
13
12
13
13
14
13
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
92
94
92
94
94
96
94
92
91
91
88
84
84
89
93
98
98
98
98
96
94
92
92

Pressure (mb)

999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999
999

Ozone (du)

441
438
433
435
439
444
456
461
468
468
477
485
480
466
451
436
421
402
382
362
368
374
379
383

Friday 30

Waxing Gibbous 95%

13:36

07:17

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:19, Set: 17:14, Transit: 12:47. Moon - Rise: 13:36, Set: 07:17. Civil Dark: 17:52 - 07:42. Nautical Dark: 18:34 - 07:00. Astro Dark: 19:14 - 06:19

Total Clouds (% Sky Obscured)

99
98
98
95
96
97
98
98
99
99
98
97
97
97
97
98
94
90
87
86
86
87
91
95

Low Clouds (% Sky Obscured)

99
94
89
83
84
84
84
89
92
94
93
93
93
90
87
85
82
80
76
75
75
78
83
87

Medium Clouds (% Sky Obscured)

4
17
24
25
33
51
72
79
86
94
73
59
40
59
74
90
78
67
56
62
67
75
68
59

High Clouds (% Sky Obscured)

4
3
2
1
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
23
41

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
2
4
5
4
2
0
2

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
Snow
Snow
Snow
None

Precipitation Probability (%)

3
3
2
0
1
2
0
3
7
3
10
13
15
16
18
18
18
20
20
30
39
45
43
37

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
13
14
14
14
14
14
14
14
14
15
15
15
15
15
15
15
15
15
15
15
15
16
16

Chance of Frost

Temperature (°C)

0
0
0
-0
-0
-1
-1
-1
-0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
91
92
92
94
92
92
92
92
92
91
89
88
86
88
91
94
96
96
96
96
98
98
96

Pressure (mb)

999
999
999
998
998
998
998
998
998
999
999
999
999
999
999
999
999
999
999
999
999
999
999
998

Ozone (du)

387
391
391
390
389
389
388
387
387
387
387
384
382
379
378
378
377
381
386
391
399
407
415
418

Saturday 31

Waxing Gibbous 99%

15:04

08:00

Sun - Rise: 08:18, Set: 17:16, Transit: 12:47. Moon - Rise: 15:04, Set: 08:00. Civil Dark: 17:53 - 07:40. Nautical Dark: 18:35 - 06:58. Astro Dark: 19:16 - 06:18

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 Groningen, Gemeente Groningen, Netherlands (53.22,6.57)

Generated: 24/01/26 23:54:45. Forecast: 25/01/26 to 31/01/26. Timezone: UTC+1.00