Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waxing Gibbous 68%

17:01

00:33

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 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:01, Set: 19:20, Transit: 13:10. Moon - Rise: 17:01, Set: 00:33. Civil Dark: 19:52 - 06:30. Nautical Dark: 20:31 - 05:52. Astro Dark: 21:11 - 05:12

Total Clouds (% Sky Obscured)

95
97
98
98
72
72
73
75
66
55
72
76
72
78
68
50
43
53
72
75
71
69
73
62

Low Clouds (% Sky Obscured)

46
33
64
73
38
44
45
33
34
21
30
34
28
33
31
29
29
32
41
42
49
48
54
45

Medium Clouds (% Sky Obscured)

68
89
95
91
37
23
36
36
23
18
21
24
14
6
4
4
4
7
5
7
9
14
6
4

High Clouds (% Sky Obscured)

84
94
98
72
64
20
3
11
5
17
19
28
39
45
44
19
8
18
28
13
2
1
0
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 (%)

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
0
0
8
10
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)

6
6
7
8
7
6
6
6
6
7
6
5
3
3
3
2
2
2
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

14
14
15
15
15
16
17
17
18
17
17
16
15
14
13
13
12
12
12
12
12
12
12
12

Feels Like (°C)

13
13
14
13
14
15
16
16
16
16
17
16
14
14
12
11
12
12
12
11
12
13
13
13

Dew Point (°C)

13
12
12
12
11
8
8
7
7
7
8
9
10
10
10
9
9
8
8
7
7
7
7
8

Relative Humidity (%)

93
90
86
82
73
61
54
51
50
51
54
62
73
79
79
77
77
76
75
73
72
72
72
73

Pressure (mb)

1026
1026
1027
1028
1029
1029
1029
1030
1030
1030
1030
1030
1031
1032
1032
1032
1033
1033
1033
1033
1032
1032
1032
1032

Ozone (du)

282
281
278
277
278
278
278
278
279
279
278
278
277
277
279
279
280
279
278
277
277
277
277
276

Monday 21

Waxing Gibbous 77%

17:28

01:45

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

Sun - Rise: 07:03, Set: 19:17, Transit: 13:10. Moon - Rise: 17:28, Set: 01:45. Civil Dark: 19:50 - 06:32. Nautical Dark: 20:29 - 05:53. Astro Dark: 21:09 - 05:13

Total Clouds (% Sky Obscured)

61
57
56
62
36
65
69
67
71
61
60
52
32
25
45
46
47
47
37
24
21
20
26
27

Low Clouds (% Sky Obscured)

46
38
38
40
24
38
44
45
60
57
57
52
32
25
45
46
47
47
37
21
17
15
16
17

Medium Clouds (% Sky Obscured)

0
1
1
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)

1
2
2
1
1
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
20
62
63
56
45
42
65
59

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)

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

Chance of Frost

Temperature (°C)

12
13
16
17
19
20
21
21
21
21
20
19
17
16
14
14
14
13
13
13
13
13
13
13

Feels Like (°C)

13
14
17
19
21
23
24
24
23
22
21
21
20
17
16
15
15
15
15
14
15
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

73
72
67
64
61
61
60
60
59
60
64
71
83
89
92
92
92
92
90
90
92
90
90
92

Pressure (mb)

1033
1033
1033
1033
1033
1033
1032
1032
1032
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1029
1029

Ozone (du)

275
273
272
272
273
272
271
271
271
270
270
270
271
271
272
272
273
273
273
272
271
271
270
270

Tuesday 22

Waxing Gibbous 85%

17:49

03:00

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

Sun - Rise: 07:04, Set: 19:15, Transit: 13:10. Moon - Rise: 17:49, Set: 03:00. Civil Dark: 19:48 - 06:33. Nautical Dark: 20:26 - 05:55. Astro Dark: 21:06 - 05:15

Total Clouds (% Sky Obscured)

24
5
14
6
31
24
18
11
4
8
11
15
32
45
95
80
78
71
48
59
94
100
100
100

Low Clouds (% Sky Obscured)

14
3
8
4
18
14
10
7
3
2
1
0
6
12
18
21
25
28
30
29
27
27
24
21

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
14
15
16

High Clouds (% Sky Obscured)

0
0
0
1
0
0
1
0
0
5
10
13
24
37
91
67
62
45
24
45
92
100
100
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 (%)

63
50
19
3
2
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
1
1
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)

3
2
2
4
6
7
9
9
9
9
7
5
3
2
3
2
2
2
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

12
13
16
17
19
20
20
20
20
20
19
18
16
15
14
13
13
13
13
13
13
13
13
13

Feels Like (°C)

14
16
19
20
21
21
22
21
21
21
20
20
18
17
17
14
14
13
13
16
15
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

90
90
82
77
68
63
60
59
59
61
64
72
83
86
86
87
87
89
87
87
89
89
89
89

Pressure (mb)

1029
1030
1030
1030
1030
1029
1029
1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1023
1023

Ozone (du)

272
274
276
278
277
276
276
277
277
277
277
277
278
278
280
280
283
283
284
283
281
281
280
280

Wednesday 23

Waxing Gibbous 92%

18:05

04:16

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

Sun - Rise: 07:06, Set: 19:13, Transit: 13:09. Moon - Rise: 18:05, Set: 04:16. Civil Dark: 19:45 - 06:35. Nautical Dark: 20:24 - 05:57. Astro Dark: 21:04 - 05:17

Total Clouds (% Sky Obscured)

100
100
100
93
88
85
85
84
38
37
33
35
31
65
60
71
85
100
91
83
74
82
87
93

Low Clouds (% Sky Obscured)

21
14
10
14
10
7
7
10
11
9
11
13
10
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

45
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
4
4
3
2
4
0

High Clouds (% Sky Obscured)

100
100
100
82
67
65
60
63
7
11
10
14
17
41
43
43
43
43
37
31
35
54
73
92

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
3
3
1
3
2
1
2
1
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)

3
3
5
7
9
11
12
12
14
14
14
12
11
9
8
7
6
5
4
3
2
2
3
4

Chance of Frost

Temperature (°C)

13
14
15
16
17
17
18
18
17
17
16
15
14
12
11
10
10
10
10
10
10
10
9
9

Feels Like (°C)

12
13
14
14
15
16
16
16
15
15
15
14
13
11
9
8
8
8
8
8
8
9
7
7

Dew Point (°C)

11
11
12
13
12
12
11
11
11
11
10
10
10
10
10
9
9
9
8
7
6
6
5
5

Relative Humidity (%)

86
82
79
81
75
70
65
63
66
68
67
73
79
89
91
91
90
91
87
81
76
74
76
74

Pressure (mb)

1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025

Ozone (du)

280
281
283
283
283
285
286
289
292
294
296
298
298
297
297
296
294
292
291
289
288
286
285
284

Thursday 24

Waxing Gibbous 97%

18:19

05:32

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 OK
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

Sun - Rise: 07:07, Set: 19:11, Transit: 13:09. Moon - Rise: 18:19, Set: 05:32. Civil Dark: 19:43 - 06:37. Nautical Dark: 20:22 - 05:58. Astro Dark: 21:01 - 05:19

Total Clouds (% Sky Obscured)

92
90
87
87
88
88
70
53
35
41
52
64
52
45
39
48
52
56
56
55
59
59
55
55

Low Clouds (% Sky Obscured)

5
4
5
7
12
13
11
7
2
5
9
9
9
8
8
8
12
12
12
13
13
9
9
9

Medium Clouds (% Sky Obscured)

4
4
2
1
1
0
1
1
3
4
4
4
7
10
17
16
16
15
12
13
9
9
5
0

High Clouds (% Sky Obscured)

52
61
61
70
78
83
60
36
14
24
38
50
37
23
19
24
28
32
33
29
32
43
55
55

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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
2
6
7
40
57
73

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
0.2
0.5

Wind Speed/Direction (mph)

5
8
11
14
15
16
17
16
16
15
14
12
10
9
8
7
8
8
8
8
7
7
6
8

Chance of Frost

Temperature (°C)

9
10
12
14
15
16
17
17
18
18
17
15
15
14
14
13
13
13
14
13
13
13
13
13

Feels Like (°C)

6
7
8
8
9
9
10
15
15
15
15
16
16
12
14
14
14
14
14
13
13
14
13
13

Dew Point (°C)

5
7
8
10
11
11
11
12
12
12
12
12
13
13
13
13
13
13
13
12
12
12
12
11

Relative Humidity (%)

80
78
76
75
73
69
68
68
68
67
75
82
89
90
93
95
95
95
93
93
92
92
92
90

Pressure (mb)

1025
1024
1024
1023
1023
1023
1022
1022
1021
1020
1020
1020
1019
1019
1020
1020
1019
1019
1018
1018
1017
1017
1017
1017

Ozone (du)

283
281
280
279
278
276
275
274
274
273
273
272
272
272
272
272
272
272
271
272
272
272
272
272

Friday 25

Waxing Gibbous 99%

18:32

06:49

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 Bad
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

Sun - Rise: 07:09, Set: 19:08, Transit: 13:09. Moon - Rise: 18:32, Set: 06:49. Civil Dark: 19:41 - 06:38. Nautical Dark: 20:19 - 06:00. Astro Dark: 20:59 - 05:20

Total Clouds (% Sky Obscured)

48
44
37
40
45
49
45
41
35
37
38
39
46
56
68
70
74
77
79
79
81
82
80
75

Low Clouds (% Sky Obscured)

8
3
5
9
9
13
12
14
10
8
9
6
6
6
6
6
8
9
12
13
12
12
13
13

Medium Clouds (% Sky Obscured)

0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
16
32
49
49
46
43

High Clouds (% Sky Obscured)

41
21
0
0
0
0
0
0
1
1
1
2
9
17
25
28
31
34
30
30
25
24
24
23

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

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

Precipitation Probability (%)

65
53
35
18
9
2
4
6
12
15
20
20
20
17
6
8
8
3
4
3
2
5
3
3

Precipitation Amount (mm)

0.3
0.2
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
12
12
13
14
14
15
15
15
15
14
13
12
11
10
9
9
8
8
7
6
6
5
4

Chance of Frost

Temperature (°C)

12
13
14
15
16
16
17
17
17
16
15
14
13
13
12
12
11
11
11
11
11
11
11
11

Feels Like (°C)

13
13
12
12
13
13
14
16
15
14
14
15
15
10
11
12
11
11
11
9
9
10
9
9

Dew Point (°C)

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

Relative Humidity (%)

89
80
74
67
61
57
52
51
51
50
54
58
62
67
72
77
79
81
83
83
80
77
77
77

Pressure (mb)

1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

272
273
273
274
274
274
275
275
275
276
276
276
277
278
280
281
281
281
281
280
278
276
276
276

Saturday 26

Full Moon 100%

18:45

No Set

Sun - Rise: 07:11, Set: 19:06, Transit: 13:08. Moon - Rise: 18:45, Set: No Set. Civil Dark: 19:39 - 06:40. Nautical Dark: 20:17 - 06:01. Astro Dark: 20:56 - 05:22

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 Upton, Cornwall, United Kingdom (50.54,-4.43)

Generated: 20/09/26 06:20:16. Forecast: 20/09/26 to 26/09/26. Timezone: UTC+1.00