Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 0%

09:47

16:04

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 08:43, Set: 16:20, Transit: 12:32. Moon - Rise: 09:47, Set: 16:04. Civil Dark: 17:02 - 08:01. Nautical Dark: 17:46 - 07:17. Astro Dark: 18:28 - 06:35

Total Clouds (% Sky Obscured)

61
70
76
100
100
100
98
91
96
100
100
100
100
100
99
99
99
100
98
97
96
100
100
100

Low Clouds (% Sky Obscured)

61
61
76
83
53
27
27
43
61
68
80
78
78
75
80
81
85
87
91
94
54
52
95
100

Medium Clouds (% Sky Obscured)

38
37
22
9
23
45
27
25
43
62
68
70
82
91
91
80
95
100
94
81
70
93
100
90

High Clouds (% Sky Obscured)

55
49
76
100
100
100
97
62
79
84
88
100
100
100
83
81
51
100
50
34
30
100
94
75

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
4
4
9
8
8
4
4

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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
1
0
0
0
0
0
1
5
16
19
38
41
56
74
91
95
84
89
83
76
88
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.9
0.3
0.5
0.5
0.4
0.6
1.4

Wind Speed/Direction (mph)

11
9
9
11
12
12
12
13
15
17
19
21
22
24
22
20
20
20
20
15
17
14
10
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
94
90
88
88
90
91
90
88
85
84
84
82
80
84
87
90
91
88
85
84
90
95

Pressure (mb)

1010
1010
1010
1009
1008
1007
1006
1005
1004
1003
1002
1000
999
998
997
996
996
995
994
994
994
993
993
993

Ozone (du)

281
282
280
280
284
285
283
282
285
290
293
295
302
310
310
308
308
312
316
323
324
324
331
343

Saturday 20

New Moon 2%

10:26

No Set

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 08:43, Set: 16:21, Transit: 12:32. Moon - Rise: 10:26, Set: No Set. Civil Dark: 17:02 - 08:02. Nautical Dark: 17:47 - 07:17. Astro Dark: 18:29 - 06:35

Total Clouds (% Sky Obscured)

92
97
100
99
100
100
100
100
100
100
99
90
89
90
83
100
85
100
59
97
98
91
100
77

Low Clouds (% Sky Obscured)

82
71
68
59
59
70
74
69
72
79
87
90
89
87
77
73
65
49
33
46
47
54
74
56

Medium Clouds (% Sky Obscured)

60
60
65
70
93
100
100
100
100
100
96
20
13
16
43
100
56
67
19
59
95
82
82
35

High Clouds (% Sky Obscured)

81
82
99
93
85
98
10
100
100
100
32
20
25
30
30
30
43
17
0
16
28
1
35
50

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
2
0
1
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
86
68
47
37
30
72
81
43
15
12
27
17
11
2
0
1
1
2
5
3
9

Precipitation Amount (mm)

1.4
1.5
1
0.7
0.4
0
0
0
0.5
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
7
7
7
7
7
7
6
6
5
5
5
5
5
5
5
5
5
6
6
7
7
7
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
93
93
93
93
91
91
93
93
93
93
94
93
93
94
94
96
91
87
85
84
85
86

Pressure (mb)

994
994
994
995
995
995
995
995
995
995
996
996
997
997
998
999
1000
1001
1001
1001
1001
1001
1002
1002

Ozone (du)

362
366
373
380
388
398
407
412
411
413
413
412
412
408
407
409
410
410
412
416
420
422
420
420

Sunday 21

Waxing Crescent 6%

10:54

17:12

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

Sun - Rise: 08:44, Set: 16:22, Transit: 12:33. Moon - Rise: 10:54, Set: 17:12. Civil Dark: 17:03 - 08:02. Nautical Dark: 17:47 - 07:18. Astro Dark: 18:29 - 06:36

Total Clouds (% Sky Obscured)

75
81
66
63
67
73
55
52
28
32
28
29
34
39
60
72
84
80
78
70
63
50
69
75

Low Clouds (% Sky Obscured)

40
43
31
31
34
39
41
39
28
32
28
29
34
39
43
43
40
28
22
16
9
2
19
34

Medium Clouds (% Sky Obscured)

41
40
50
50
60
60
34
37
4
0
0
0
0
0
0
0
23
55
62
60
60
50
43
66

High Clouds (% Sky Obscured)

28
35
55
59
0
0
1
0
0
0
0
0
0
0
29
50
45
45
45
40
30
20
15
1

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 (%)

1
2
2
2
0
0
1
5
6
20
27
18
42
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 (%)

10
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
94
94
94
94
94
94
94
96
96
96
94
96
94
94
93
91
89
86
86
85
88
91

Pressure (mb)

1002
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003
1003
1003
1003

Ozone (du)

421
421
421
419
419
418
418
417
414
410
405
404
400
392
390
385
376
361
345
331
324
327
327
325

Monday 22

Waxing Crescent 12%

11:14

18:29

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 08:44, Set: 16:22, Transit: 12:33. Moon - Rise: 11:14, Set: 18:29. Civil Dark: 17:03 - 08:02. Nautical Dark: 17:48 - 07:18. Astro Dark: 18:30 - 06:36

Total Clouds (% Sky Obscured)

72
95
90
88
90
92
91
93
95
100
99
98
97
96
95
94
96
98
100
100
100
100
97
94

Low Clouds (% Sky Obscured)

50
50
53
83
83
84
87
89
89
90
91
92
93
91
90
91
94
97
100
100
100
100
97
94

Medium Clouds (% Sky Obscured)

60
74
54
39
37
34
41
58
77
100
98
95
94
92
91
93
89
86
85
81
78
80
72
69

High Clouds (% Sky Obscured)

0
3
8
7
25
25
15
16
17
18
27
26
30
35
40
40
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
3
3
4
4
4
8
9
8
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
2
8
43
57
82
95
95
95
95
86
66
56
57
52
44
40
21
29
8
5
9
18

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.4
1.2
0.9
0.6
0.8
0.5
0.2
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
5
6
7
10
10
4
2
2
2
2
3
3
3
4
4
5
5
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
93
88
89
90
91
98
94
93
94
94
93
91
91
90
90
91
90
90
90
91
93

Pressure (mb)

1003
1004
1004
1004
1004
1005
1005
1005
1006
1006
1007
1008
1008
1009
1009
1010
1011
1012
1013
1013
1013
1014
1015
1015

Ozone (du)

323
325
326
324
326
332
341
348
350
352
356
361
364
368
370
371
370
371
372
371
371
371
370
369

Tuesday 23

Waxing Crescent 19%

11:29

19:48

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 08:44, Set: 16:23, Transit: 12:34. Moon - Rise: 11:29, Set: 19:48. Civil Dark: 17:04 - 08:03. Nautical Dark: 17:48 - 07:18. Astro Dark: 18:30 - 06:36

Total Clouds (% Sky Obscured)

91
92
92
93
89
85
81
78
76
73
69
65
61
94
91
88
84
81
79
81
83
85
78
70

Low Clouds (% Sky Obscured)

91
92
92
91
87
83
79
70
64
70
62
57
52
31
39
49
59
70
79
81
83
85
78
70

Medium Clouds (% Sky Obscured)

60
51
52
53
39
40
36
19
4
0
0
0
0
22
23
14
9
3
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
7
4
6
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

38
62
59
36
18
4
0
2
3
0
0
0
0
1
2
0
0
0
0
5
7
7
8
8

Precipitation Amount (mm)

0
0.4
0.4
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
9
10
10
10
10
10
9
8
7
7
7
7
6
6
7
6
7
7
8
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
96
94
94
93
91
93
94
96
98
96
96
98
96
94
96
94
93
93
91
91
91

Pressure (mb)

1016
1017
1017
1018
1019
1019
1020
1021
1022
1023
1023
1024
1025
1025
1025
1026
1027
1028
1028
1028
1029
1029
1029
1029

Ozone (du)

368
367
364
360
357
354
352
350
347
344
342
339
336
334
332
331
329
326
323
320
318
316
314
314

Wednesday 24

Waxing Crescent 28%

11:41

21:08

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 OK
12 OK
13 OK
14 Good
15 OK
16 OK

Sun - Rise: 08:45, Set: 16:24, Transit: 12:34. Moon - Rise: 11:41, Set: 21:08. Civil Dark: 17:04 - 08:03. Nautical Dark: 17:49 - 07:19. Astro Dark: 18:31 - 06:37

Total Clouds (% Sky Obscured)

63
67
72
75
72
68
67
64
68
73
72
71
70
80
89
98
94
51
29
17
13
13
10
10

Low Clouds (% Sky Obscured)

63
67
72
74
70
66
61
62
66
73
72
71
70
68
66
68
64
50
29
17
13
13
10
10

Medium Clouds (% Sky Obscured)

0
0
0
0
2
3
4
3
2
2
1
1
0
22
41
51
32
15
7
10
13
13
10
10

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 (%)

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 (%)

4
4
2
0
1
1
0
1
0
0
0
0
0
12
18
22
21
19
16
13
10
1
6
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
93
91
93
91
91
89
91
91
93
91
91
92
92
92
92
89
86
83
85
86
88
89

Pressure (mb)

1029
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1028
1027
1027
1027
1027
1026
1026
1025
1025
1025

Ozone (du)

315
316
314
312
309
309
308
308
308
308
308
308
308
308
309
309
309
307
306
305
305
305
305
305

Thursday 25

Waxing Crescent 28%

11:51

22:27

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 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:45, Set: 16:24, Transit: 12:35. Moon - Rise: 11:51, Set: 22:27. Civil Dark: 17:05 - 08:03. Nautical Dark: 17:50 - 07:19. Astro Dark: 18:32 - 06:37

Total Clouds (% Sky Obscured)

20
31
52
59
78
84
67
58
53
53
58
86
96
96
96
96
95
94
92

Low Clouds (% Sky Obscured)

20
31
49
53
55
57
59
55
53
53
58
67
70
74
82
85
82
79
76

Medium Clouds (% Sky Obscured)

13
8
8
4
4
8
8
8
8
16
20
20
24
24
28
28
30
29
28

High Clouds (% Sky Obscured)

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

Fog (%)

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

Precipitation Probability (%)

3
10
12
12
14
15
17
15
14
13
11
9
6
7
7
6
4
3
0

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)

5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
93
94
94
93
93
93
93
93
94
94
94
92
92
91
86

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026

Ozone (du)

304
304
305
306
307
307
307
307
306
306
306
306
305
305
305
305
306
305
305

Forecast for Castletroy, Limerick, Republic of Ireland (52.67,-8.55)

Generated: 19/12/25 17:10:27. Forecast: 19/12/25 to 25/12/25. Timezone: UTC+0.00