Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Crescent 1%

06:35

17:26

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
00 Bad

Sun - Rise: 07:44, Set: 18:05, Transit: 12:55. Moon - Rise: 06:35, Set: 17:26. Civil Dark: 18:39 - 07:10. Nautical Dark: 19:18 - 06:31. Astro Dark: 19:57 - 05:52

Total Clouds (% Sky Obscured)

71
64
87
92
98
100
100
100
100
100
100
99
93
99
75
78
59
52
72
79
71
65
98
87

Low Clouds (% Sky Obscured)

42
44
56
57
64
82
81
60
80
53
57
66
66
57
46
52
42
37
30
41
48
41
54
45

Medium Clouds (% Sky Obscured)

45
48
70
83
93
99
99
59
58
77
79
98
25
25
23
29
19
19
25
21
23
16
30
28

High Clouds (% Sky Obscured)

0
0
70
0
21
50
87
71
100
100
100
97
83
83
41
40
3
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
8
5
9
9
5
9
9
4
3
2
3
4
4
6
8
4
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
Light Rain
Light Rain
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

23
34
48
46
32
95
95
77
68
93
95
92
81
81
71
64
61
25
2
1
4
6
6
37

Precipitation Amount (mm)

0
0
0
0
0
0.7
0.7
0
0
0.5
1.7
0.7
0.5
0.4
0.3
0.3
0.4
0
0
0
0
0
0
0.3

Wind Speed/Direction (mph)

6
7
9
10
9
10
11
11
10
12
12
10
8
7
4
6
6
6
7
6
8
10
11
11

Chance of Frost

Temperature (°C)

12
12
13
13
13
13
13
13
13
14
14
14
14
15
15
15
14
14
13
13
12
12
12
12

Feels Like (°C)

12
12
11
10
10
10
10
10
11
11
11
12
13
14
15
14
14
14
13
13
11
11
9
10

Dew Point (°C)

11
11
12
11
12
12
12
12
11
12
13
13
13
12
12
12
13
13
12
11
11
11
11
11

Relative Humidity (%)

95
95
93
90
93
92
95
93
89
89
92
93
90
82
79
84
89
93
93
92
92
92
92
93

Pressure (mb)

993
993
992
991
990
989
988
988
987
986
986
985
984
984
984
984
985
986
987
987
988
989
990
990

Ozone (du)

298
298
299
302
304
303
302
299
301
304
307
304
305
304
303
304
302
301
297
296
293
291
288
289

Tuesday 21

New Moon 0%

07:47

17:38

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

Sun - Rise: 07:45, Set: 18:03, Transit: 12:54. Moon - Rise: 07:47, Set: 17:38. Civil Dark: 18:37 - 07:11. Nautical Dark: 19:16 - 06:33. Astro Dark: 19:55 - 05:54

Total Clouds (% Sky Obscured)

40
32
94
87
70
87
83
91
86
76
75
89
92
91
63
59
39
51
85
25
40
25
23
15

Low Clouds (% Sky Obscured)

34
32
65
63
47
49
75
60
54
53
60
65
57
56
63
59
39
35
28
0
0
6
4
5

Medium Clouds (% Sky Obscured)

4
0
51
38
28
39
35
52
44
35
24
32
27
39
0
0
0
26
75
25
33
14
13
5

High Clouds (% Sky Obscured)

0
0
1
1
1
1
15
14
10
1
0
1
58
63
1
1
1
2
10
14
2
1
1
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
9
9
9
7
6
6
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 (%)

20
5
6
13
15
15
18
18
19
21
23
27
31
25
26
4
0
1
0
1
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)

10
11
10
8
10
10
11
11
10
10
13
13
13
14
15
15
13
11
10
8
7
6
5
5

Chance of Frost

Temperature (°C)

13
13
12
12
12
13
12
13
13
13
14
14
14
14
15
14
14
13
12
12
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
95
96
92
92
92
90
87
83
78
78
78
74
74
75
79
80
83
84
88
90
90

Pressure (mb)

991
991
991
991
991
991
992
992
992
993
993
993
994
994
994
995
995
996
996
997
997
998
998
998

Ozone (du)

290
289
286
283
281
278
276
278
279
281
280
282
284
286
285
285
283
281
281
280
281
281
281
278

Wednesday 22

Waxing Crescent 1%

09:00

17:52

01 OK
02 OK
03 OK
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

Sun - Rise: 07:47, Set: 18:01, Transit: 12:54. Moon - Rise: 09:00, Set: 17:52. Civil Dark: 18:35 - 07:13. Nautical Dark: 19:14 - 06:34. Astro Dark: 19:53 - 05:56

Total Clouds (% Sky Obscured)

16
29
34
96
96
98
98
95
83
100
100
100
100
100
100
100
100
100
100
100
100
94
87
81

Low Clouds (% Sky Obscured)

12
21
25
5
14
35
55
57
39
1
20
19
72
67
82
100
98
98
95
93
90
82
75
67

Medium Clouds (% Sky Obscured)

0
3
0
21
18
14
15
25
22
25
27
59
78
100
100
99
100
96
98
41
93
28
25
17

High Clouds (% Sky Obscured)

16
25
28
94
90
98
70
88
83
100
100
100
100
90
97
95
100
100
74
22
12
35
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
2
2
1
8
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
3
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
1
0
0
0
0
0
0
0
0
3
16
63
94
95
95
95
95
65
61
52
35
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.9
2.3
2.5
0.6
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
4
3
3
3
2
2
3
4
5
6
7
8
9
12
14
16
12
14
16
19
19

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
11
12
13
13
14
13
13
12
12
12
14
14
15
14
14

Feels Like (°C)

9
9
9
8
9
8
8
9
9
11
10
11
11
11
10
10
9
8
8
11
11
11
9
9

Dew Point (°C)

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

Relative Humidity (%)

90
91
91
91
91
91
90
87
84
78
72
69
61
64
66
74
89
95
96
98
96
93
86
89

Pressure (mb)

998
998
999
999
999
999
999
999
999
999
999
998
997
996
994
992
990
988
986
984
983
981
980
979

Ozone (du)

276
276
278
282
286
287
288
288
289
289
288
287
286
285
285
285
288
290
291
290
290
294
295
293

Thursday 23

Waxing Crescent 4%

10:14

18:11

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

Sun - Rise: 07:49, Set: 17:59, Transit: 12:54. Moon - Rise: 10:14, Set: 18:11. Civil Dark: 18:33 - 07:15. Nautical Dark: 19:12 - 06:36. Astro Dark: 19:51 - 05:57

Total Clouds (% Sky Obscured)

81
40
66
85
93
97
95
89
81
86
85
89
85
78
76
61
16
4
34
44
60
52
46
43

Low Clouds (% Sky Obscured)

64
40
62
68
74
80
67
51
46
46
42
41
38
37
37
25
12
0
15
30
48
43
38
34

Medium Clouds (% Sky Obscured)

15
8
0
39
45
90
85
71
29
49
66
72
67
60
52
11
8
0
34
44
50
52
46
43

High Clouds (% Sky Obscured)

0
0
0
2
4
5
4
2
0
0
0
18
35
35
4
0
0
0
3
7
9
5
3
0

ISS Passover

Visibility (miles)

9
9
9
4
6
9
4
9
9
6
4
9
9
5
9
9
9
9
6
4
3
5
6
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
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
23
39
45
42
56
43
27
25
36
27
24
39
50
27
11
7
24
34
37
38
34
34
36

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)

23
27
22
21
18
17
17
17
16
16
18
16
17
17
18
18
17
14
15
16
17
15
14
14

Chance of Frost

Temperature (°C)

14
12
12
12
11
11
11
10
10
10
11
11
11
11
11
10
10
10
10
9
9
9
9
9

Feels Like (°C)

9
4
7
6
6
6
5
5
4
5
5
7
7
7
5
4
4
6
5
3
3
3
3
3

Dew Point (°C)

13
9
9
9
9
8
8
7
7
8
8
8
9
9
8
7
5
5
5
6
5
5
5
5

Relative Humidity (%)

89
83
80
86
87
83
84
78
81
83
81
83
87
86
84
81
71
71
73
77
78
78
78
78

Pressure (mb)

980
981
982
982
982
982
983
983
985
986
987
989
990
992
993
995
996
997
997
998
998
999
999
999

Ozone (du)

293
296
299
303
310
317
319
327
329
321
315
312
313
312
310
310
307
307
305
305
308
310
310
307

Friday 24

Waxing Crescent 9%

11:26

18:37

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
00 Bad

Sun - Rise: 07:51, Set: 17:57, Transit: 12:54. Moon - Rise: 11:26, Set: 18:37. Civil Dark: 18:32 - 07:16. Nautical Dark: 19:11 - 06:37. Astro Dark: 19:49 - 05:59

Total Clouds (% Sky Obscured)

29
20
15
15
20
40
40
40
40
45
43
44
34
35
35
45
55
65
76
84
91
84
74
69

Low Clouds (% Sky Obscured)

23
11
0
0
0
5
5
5
5
12
20
29
31
33
35
40
45
48
38
31
22
34
38
39

Medium Clouds (% Sky Obscured)

29
20
15
15
20
40
39
32
34
35
34
22
22
24
22
20
18
8
10
9
11
9
16
17

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
31
61
56
54
30

ISS Passover

Visibility (miles)

6
5
3
3
3
4
3
4
3
4
4
5
4
5
5
5
6
8
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 (%)

31
34
30
31
33
36
35
38
33
40
40
38
43
39
36
31
26
23
32
34
39
39
36
33

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)

15
14
16
16
15
15
14
15
16
16
17
18
19
19
19
19
18
17
17
14
12
10
9
8

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
8
9
9
10
10
11
11
11
11
11
11
11
10
10
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
77
77
78
78
78
80
80
78
80
78
78
77
79
77
77
80
80
81
84
87
87
87

Pressure (mb)

999
999
999
999
999
999
999
1000
1000
1000
1000
1000
1000
1000
999
999
998
998
998
998
998
998
999
1000

Ozone (du)

307
308
309
306
305
304
304
304
305
305
305
307
309
311
312
314
315
316
318
319
321
323
321
320

Saturday 25

Waxing Crescent 15%

12:34

19:12

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
00 Bad

Sun - Rise: 07:52, Set: 17:55, Transit: 12:54. Moon - Rise: 12:34, Set: 19:12. Civil Dark: 18:30 - 07:18. Nautical Dark: 19:09 - 06:39. Astro Dark: 19:47 - 06:00

Total Clouds (% Sky Obscured)

80
90
100
93
85
76
79
82
83
87
92
98
99
99
100
100
99
100
85
64
46
49
53
67

Low Clouds (% Sky Obscured)

45
48
46
51
61
69
57
46
34
48
59
70
73
76
78
61
36
15
25
35
25
15
10
10

Medium Clouds (% Sky Obscured)

32
43
49
39
26
17
15
13
12
17
25
26
49
72
97
96
95
94
80
64
46
49
53
59

High Clouds (% Sky Obscured)

53
76
100
75
51
28
52
73
83
87
92
90
65
41
17
44
69
94
65
36
7
4
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 (%)

28
19
2
7
12
15
15
17
9
8
10
14
24
34
43
39
34
28
30
29
28
30
28
20

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

Chance of Frost

Temperature (°C)

9
9
10
10
10
10
10
10
10
10
10
11
11
11
11
11
11
10
10
9
9
8
8
8

Feels Like (°C)

7
7
7
7
7
7
7
8
7
8
7
7
7
10
11
10
11
10
11
7
8
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
88
88
90
90
87
85
84
80
73
68
73
76
81
83
84
85
84
84
82
82
82

Pressure (mb)

1001
1002
1003
1003
1004
1005
1006
1007
1008
1009
1010
1010
1011
1011
1011
1012
1012
1013
1013
1014
1014
1015
1015
1015

Ozone (du)

318
314
311
307
307
307
307
310
313
316
316
316
315
317
319
321
323
325
327
315
303
291
295
298

Sunday 26

Waxing Crescent 22%

12:32

19:01

Sun - Rise: 06:54, Set: 16:53, Transit: 11:54. Moon - Rise: 12:32, Set: 19:01. Civil Dark: 17:28 - 06:20. Nautical Dark: 18:07 - 05:41. Astro Dark: 18:45 - 05:02

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 Bristol, Bristol, United Kingdom (51.45,-2.59)

Generated: 20/10/25 01:40:22. Forecast: 20/10/25 to 26/10/25. Timezone: UTC+1.00