Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Crescent 9%

09:40

20:01

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

Sun - Rise: 07:15, Set: 17:11, Transit: 12:13. Moon - Rise: 09:40, Set: 20:01. Civil Dark: 17:39 - 06:47. Nautical Dark: 18:10 - 06:16. Astro Dark: 18:40 - 05:46

Total Clouds (% Sky Obscured)

22
36
49
37
50
72
15
6
2
6
20
41
61
70
61
47
97
100
42
92
100
100
100
100

Low Clouds (% Sky Obscured)

22
36
48
36
31
28
12
5
2
3
19
38
59
63
44
8
0
0
0
0
4
4
4
34

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
23
33
50
100
94

High Clouds (% Sky Obscured)

0
0
0
0
20
60
3
0
0
3
0
0
4
10
22
36
96
100
42
69
100
100
96
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
9
83
2
8
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
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
2
2
2
3
4
4
5
5
6
5
6
6
6
6
6
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

4
3
3
3
4
4
5
7
9
11
12
13
13
13
11
9
8
7
7
7
7
8
7
8

Feels Like (°C)

3
3
2
2
3
3
2
7
10
10
12
12
12
11
10
9
8
6
5
7
5
6
5
6

Dew Point (°C)

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

Relative Humidity (%)

85
86
88
88
86
86
85
78
70
65
61
58
63
67
73
84
90
91
91
91
88
82
82
81

Pressure (mb)

1028
1028
1027
1027
1028
1028
1027
1027
1027
1025
1024
1022
1022
1021
1022
1022
1023
1023
1022
1022
1021
1020
1019
1019

Ozone (du)

307
308
305
304
304
304
306
305
305
304
303
304
308
311
311
311
311
311
311
308
307
307
305
305

Wednesday 24

Waxing Crescent 16%

10:13

21:02

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: 07:15, Set: 17:12, Transit: 12:14. Moon - Rise: 10:13, Set: 21:02. Civil Dark: 17:39 - 06:48. Nautical Dark: 18:10 - 06:17. Astro Dark: 18:41 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
100
96
89
96
100
100
100
100
100
100
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

72
68
82
89
93
94
93
62
85
47
47
77
99
97
100
100
63
95
61
51
20
16
23
23

Medium Clouds (% Sky Obscured)

100
99
99
100
100
100
97
83
100
66
63
23
51
72
77
86
96
89
59
33
83
86
38
90

High Clouds (% Sky Obscured)

88
99
100
100
100
100
41
92
51
77
60
75
100
100
100
16
100
100
100
100
100
100
100
54

ISS Passover

Visibility (miles)

9
9
9
9
4
2
3
9
8
9
9
9
9
9
9
7
8
9
9
9
9
7
7
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
9
0
0
7
27
36
0

Precipitation Type

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

Precipitation Probability (%)

19
26
27
60
95
95
95
78
95
30
5
7
8
28
26
12
13
17
10
9
8
9
8
10

Precipitation Amount (mm)

0
0
0
0
1.4
1.4
0.8
0.2
1.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
9
9
9
9
9
9
9
11
12
14
14
13
13
11
11
11
11
11
10
10
10
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
81
81
87
95
95
93
87
92
82
78
81
87
92
93
93
93
93
93
95
95
95
93

Pressure (mb)

1018
1017
1016
1015
1015
1015
1015
1015
1014
1013
1012
1011
1010
1010
1011
1011
1012
1012
1012
1012
1012
1011
1011
1011

Ozone (du)

307
308
309
311
307
305
308
309
309
308
308
309
308
308
308
306
304
301
300
299
299
297
297
298

Thursday 25

Waxing Crescent 25%

10:43

22:04

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 OK
23 OK
00 OK
01 OK

Sun - Rise: 07:15, Set: 17:13, Transit: 12:14. Moon - Rise: 10:43, Set: 22:04. Civil Dark: 17:40 - 06:48. Nautical Dark: 18:11 - 06:17. Astro Dark: 18:41 - 05:47

Total Clouds (% Sky Obscured)

100
88
84
95
95
95
95
100
100
78
95
89
80
86
78
72
73
67
70
39
25
25
25
23

Low Clouds (% Sky Obscured)

43
46
51
67
79
86
88
98
100
66
94
83
12
12
48
72
30
25
70
34
15
14
16
14

Medium Clouds (% Sky Obscured)

77
65
61
83
79
63
76
74
56
51
56
23
71
34
48
2
5
2
2
3
0
0
0
0

High Clouds (% Sky Obscured)

100
46
55
75
79
65
14
84
75
14
28
51
11
47
15
10
10
10
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
8
5
3
6
5
7
5
9
9
9
9
9
9
9
7
9
9
9
9
9

Fog (%)

6
16
34
3
52
70
12
0
3
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

18
15
23
41
51
67
69
70
56
66
44
9
8
2
8
3
1
5
14
12
6
4
5
5

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.4
0.5
0.2
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
5
6
6
6
6
7
9
10
11
13
14
16
17
17
17
18
18
18
20
21
21
21

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
9
9
9
9
8
7
5
5
4
3
3
2
1
0
-1
-2
-2
-3

Feels Like (°C)

8
8
8
8
8
8
8
9
8
7
5
3
0
0
-1
-2
-2
-3
-4
-6
-7
-7
-7
-8

Dew Point (°C)

8
8
8
8
8
8
8
9
8
7
6
5
1
0
-1
-2
-2
-4
-2
-3
-6
-7
-7
-8

Relative Humidity (%)

95
93
93
91
91
93
96
95
93
87
85
87
75
70
69
69
69
65
78
77
70
66
67
64

Pressure (mb)

1011
1011
1010
1010
1010
1010
1011
1011
1012
1011
1011
1011
1012
1012
1013
1014
1014
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

300
298
297
297
296
296
295
294
297
295
294
294
297
298
298
300
303
303
305
309
315
317
317
317

Friday 26

Waxing Crescent 35%

11:11

23:06

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

Sun - Rise: 07:16, Set: 17:13, Transit: 12:14. Moon - Rise: 11:11, Set: 23:06. Civil Dark: 17:41 - 06:48. Nautical Dark: 18:12 - 06:17. Astro Dark: 18:42 - 05:47

Total Clouds (% Sky Obscured)

28
32
40
52
47
34
32
39
39
40
30
15
8
13
15
20
19
21
23
24
26
74
79
68

Low Clouds (% Sky Obscured)

19
20
29
50
43
23
20
28
30
32
28
13
8
11
14
18
19
21
22
21
20
17
20
21

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
74
79
68

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 (%)

2
3
5
2
6
7
2
3
3
0
0
0
0
1
2
2
4
5
5
8
8
4
8
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)

20
20
19
19
19
18
17
16
16
15
15
14
13
12
11
9
7
6
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-9
-9
-9
-10
-9
-10
-10
-10
-10
-10
-11
-10
-10
-9
-9
-8
-8
-8
-8
-8
-7
-8
-7
-7

Relative Humidity (%)

63
64
64
63
62
63
61
57
50
46
42
42
42
43
48
55
63
64
67
68
69
71
69
69

Pressure (mb)

1017
1017
1018
1018
1019
1020
1020
1021
1021
1021
1020
1020
1020
1020
1021
1021
1022
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

316
314
316
322
325
327
328
329
329
328
328
326
329
330
332
335
340
349
346
341
338
338
337
334

Saturday 27

Waxing Crescent 45%

11:38

00:08

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

Sun - Rise: 07:16, Set: 17:14, Transit: 12:15. Moon - Rise: 11:38, Set: 00:08. Civil Dark: 17:41 - 06:49. Nautical Dark: 18:12 - 06:18. Astro Dark: 18:42 - 05:48

Total Clouds (% Sky Obscured)

72
65
75
48
58
63
85
91
95
100
98
96
81
72
57
37
29
24
25
23
21
20
26
38

Low Clouds (% Sky Obscured)

20
19
17
18
13
8
3
6
9
10
12
12
14
23
20
14
12
9
10
9
10
14
11
6

Medium Clouds (% Sky Obscured)

2
48
68
29
51
62
85
91
95
100
98
96
76
65
44
25
20
14
8
10
11
11
12
9

High Clouds (% Sky Obscured)

72
12
5
40
2
1
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 (%)

4
6
6
3
4
4
2
4
4
3
4
3
2
8
10
10
11
10
3
5
4
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
71
72
71
69
68
66
53
46
40
37
37
38
39
47
58
70
70
70
71
71
71
71
72

Pressure (mb)

1023
1023
1023
1023
1023
1024
1024
1024
1024
1023
1022
1021
1021
1021
1021
1022
1023
1023
1023
1024
1024
1023
1023
1024

Ozone (du)

331
328
325
324
321
321
320
318
316
316
318
318
316
317
319
321
323
322
321
320
318
316
314
317

Sunday 28

First Quarter 57%

12:06

01:14

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

Sun - Rise: 07:16, Set: 17:14, Transit: 12:15. Moon - Rise: 12:06, Set: 01:14. Civil Dark: 17:42 - 06:49. Nautical Dark: 18:13 - 06:18. Astro Dark: 18:43 - 05:48

Total Clouds (% Sky Obscured)

46
44
41
47
26
20
18
21
25
28
35
36
36
36
41
51
62
73
77
49
25
9
6
3

Low Clouds (% Sky Obscured)

1
8
14
20
15
15
13
13
16
20
26
31
30
25
21
16
9
7
5
3
2
0
0
0

Medium Clouds (% Sky Obscured)

8
4
4
4
6
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
15
31
46
62
73
77
49
25
9
6
2

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)

5
5
5
5
5
4
4
3
3
3
4
4
4
5
4
3
3
3
3
4
4
4
5
5

Chance of Frost

Temperature (°C)

-1
-1
-1
-1
-2
-0
1
3
4
5
6
7
7
7
5
3
1
1
1
0
-1
-1
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
75
75
75
70
65
59
53
48
44
45
47
47
55
63
73
73
75
75
75
75
77
75

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1025
1024
1024
1023
1023
1023
1022
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025

Ozone (du)

319
322
323
325
326
326
326
327
323
319
315
312
310
308
307
307
307
306
305
304
304
305
305
304

Monday 29

Waxing Gibbous 68%

12:36

No Set

Sun - Rise: 07:17, Set: 17:15, Transit: 12:16. Moon - Rise: 12:36, Set: No Set. Civil Dark: 17:42 - 06:49. Nautical Dark: 18:13 - 06:18. Astro Dark: 18:44 - 05:48

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 Yufuin, Yufu-shi, Japan (33.31,131.39)

Generated: 23/12/25 01:22:42. Forecast: 23/12/25 to 29/12/25. Timezone: UTC+9.00