Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waxing Crescent 17%

08:37

00:07

00 OK
01 OK
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 Good
19 Good
20 OK
21 Bad
22 Bad
23 Bad

Sun - Rise: 04:48, Set: 21:19, Transit: 13:04. Moon - Rise: 08:37, Set: 00:07. Civil Dark: 22:05 - 04:02. Nautical Dark: 23:16 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

18
35
52
64
100
100
100
100
99
100
99
100
100
100
100
100
100
100
0
0
28
94
85
56

Low Clouds (% Sky Obscured)

18
35
52
64
80
84
98
85
88
92
75
59
44
17
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
1
0
0
0
0
0
23
31
29
35
18
54
55
50
9
0
0
0
4
15
20

High Clouds (% Sky Obscured)

18
35
52
64
94
99
100
100
98
98
82
95
100
92
100
100
100
97
0
0
26
53
40
13

ISS Passover

Visibility (miles)

3
9
7
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
4
9
14
19
34
59
79

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
2
1
0
0
0
0
0
0
0
0
0
1
0
0
1
1
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)

6
5
5
4
5
5
5
5
7
8
9
10
10
10
9
9
9
9
7
6
5
3
2
1

Chance of Frost

Temperature (°C)

17
17
16
16
16
16
16
16
17
18
18
19
21
22
23
23
23
23
22
21
20
19
17
16

Feels Like (°C)

18
18
16
16
16
16
16
17
16
16
17
18
21
21
22
22
22
22
22
21
22
22
20
18

Dew Point (°C)

17
17
16
16
15
15
15
15
14
14
14
14
15
15
15
15
16
16
16
15
16
16
15
14

Relative Humidity (%)

100
98
98
96
96
95
92
90
83
79
77
70
66
64
60
61
66
67
67
68
76
85
87
87

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1018
1019
1019
1019
1019
1018
1018
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

331
331
330
331
332
330
329
330
330
330
331
330
329
329
328
328
330
331
333
334
334
333
333
334

Friday 19

Waxing Crescent 27%

10:04

00:07

00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 Bad
10 Bad
11 OK
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: 04:49, Set: 21:20, Transit: 13:04. Moon - Rise: 10:04, Set: 00:07. Civil Dark: 22:06 - 04:02. Nautical Dark: 23:16 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

29
31
45
39
38
34
31
29
19
50
64
47
45
45
37
30
46
66
54
62
100
100
88
100

Low Clouds (% Sky Obscured)

14
0
10
26
31
28
19
9
0
0
0
0
0
0
0
0
0
14
0
0
0
0
13
27

Medium Clouds (% Sky Obscured)

7
15
12
11
4
4
3
6
2
3
28
30
27
45
27
24
27
31
34
41
20
0
3
5

High Clouds (% Sky Obscured)

2
2
14
30
5
5
31
29
19
38
59
47
30
8
3
13
18
7
4
1
80
90
68
90

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
9
9
9
9
9
9
9

Fog (%)

83
66
53
43
95
95
27
5
9
8
5
6
2
1
2
4
3
3
1
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
3
0
0
0
1
15
14
14
17
7
9
1
2
1
2
3
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)

1
1
1
1
2
2
1
2
3
5
7
8
9
11
12
12
13
12
12
10
7
5
4
5

Chance of Frost

Temperature (°C)

16
15
15
15
15
14
15
17
20
22
24
25
26
26
26
25
25
24
23
22
21
19
18
17

Feels Like (°C)

19
18
18
18
17
17
18
20
21
23
25
25
25
26
27
26
24
23
22
22
23
21
20
19

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
87
86
84
78
71
68
64
63
63
61
62
60
56
57
57
60
69
78
86
90

Pressure (mb)

1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1015
1015

Ozone (du)

334
333
331
331
331
333
332
330
330
332
332
333
333
332
333
332
332
332
332
333
331
331
332
330

Saturday 20

Waxing Crescent 38%

11:26

00:23

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: 04:49, Set: 21:20, Transit: 13:04. Moon - Rise: 11:26, Set: 00:23. Civil Dark: 22:06 - 04:02. Nautical Dark: 23:16 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

95
90
90
95
95
100
91
78
82
81
83
94
99
95
95
100
100
98
100
95
91
87
79
72

Low Clouds (% Sky Obscured)

46
53
64
73
68
52
78
73
68
71
66
44
44
28
15
19
0
0
2
9
15
5
0
3

Medium Clouds (% Sky Obscured)

35
21
3
8
19
37
66
72
79
33
37
79
95
95
95
96
99
97
94
95
91
87
78
72

High Clouds (% Sky Obscured)

82
21
59
78
82
83
18
15
15
25
14
77
35
42
57
100
99
85
100
85
69
51
40
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
7
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
1
0
0
0
0
0
0
0
0
0
19
11
0
4
3

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)

4
5
5
5
5
4
4
6
8
9
10
10
9
9
8
8
8
7
8
6
3
4
3
3

Chance of Frost

Temperature (°C)

16
16
16
16
16
15
16
17
18
19
20
21
22
23
23
24
24
23
23
22
21
20
19
18

Feels Like (°C)

18
16
16
15
15
15
16
17
17
19
20
21
21
22
23
23
23
22
22
22
21
19
18
17

Dew Point (°C)

15
15
15
15
15
15
15
15
15
15
15
15
14
14
14
14
13
14
15
15
15
14
13
13

Relative Humidity (%)

92
93
95
96
96
96
95
90
85
77
71
66
61
57
54
53
51
54
60
63
68
69
68
71

Pressure (mb)

1015
1015
1015
1016
1016
1016
1017
1017
1018
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023

Ozone (du)

331
332
331
329
330
330
332
334
332
331
332
331
332
333
333
334
332
332
332
332
331
333
342
343

Sunday 21

First Quarter 48%

12:43

00:36

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

Sun - Rise: 04:49, Set: 21:20, Transit: 13:05. Moon - Rise: 12:43, Set: 00:36. Civil Dark: 22:06 - 04:03. Nautical Dark: 23:17 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

71
77
74
67
51
68
67
26
74
74
76
79
82
62
38
67
84
82
75
62
51
39
59
77

Low Clouds (% Sky Obscured)

9
9
1
0
0
0
0
0
0
0
0
0
0
7
13
19
12
6
0
0
0
0
1
2

Medium Clouds (% Sky Obscured)

71
54
37
19
18
33
14
16
18
14
15
19
28
31
30
25
28
30
31
20
11
17
14
27

High Clouds (% Sky Obscured)

4
28
55
67
51
41
24
14
13
12
16
11
10
17
24
40
36
26
30
30
25
26
50
74

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
7
4
0
1
1
1
2
1
0
0
0
0
10
4
2
13
3
2
1
0
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)

4
4
4
3
4
3
3
3
5
6
7
7
7
6
6
4
4
6
8
7
8
8
8
7

Chance of Frost

Temperature (°C)

17
17
17
16
16
16
17
18
20
21
23
24
25
27
27
27
27
26
26
27
25
23
21
20

Feels Like (°C)

16
17
16
16
17
17
17
18
20
21
23
24
26
27
28
29
29
27
26
27
25
22
20
19

Dew Point (°C)

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

Relative Humidity (%)

72
73
74
78
83
85
81
73
68
65
60
58
54
50
48
48
55
69
69
65
72
76
79
84

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026

Ozone (du)

341
339
341
341
342
340
339
338
337
337
336
334
334
333
332
330
329
327
327
326
325
325
326
327

Monday 22

Waxing Gibbous 59%

13:57

00:48

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: 04:49, Set: 21:20, Transit: 13:05. Moon - Rise: 13:57, Set: 00:48. Civil Dark: 22:06 - 04:03. Nautical Dark: 23:17 - 02:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
95
80
71
81
81
81
86
91
89
83
57
44
52
58
69
69
62

Low Clouds (% Sky Obscured)

4
4
3
3
2
1
0
7
13
20
13
7
0
0
0
0
0
0
0
0
0
0
2
4

Medium Clouds (% Sky Obscured)

38
55
57
46
35
32
30
29
33
38
44
46
52
61
70
53
40
36
23
18
16
14
11
10

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
95
80
71
81
81
80
56
27
0
0
0
0
23
42
63
60
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
20
32
27
65
90
95
76
40
5
13
15
22
37
22
3
6
7
8
3
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.4
0.8
1.1
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
18
18
18
18
18
20
21
23
24
25
25
26
26
26
26
25
24
23
21
19
19

Feels Like (°C)

18
18
18
17
16
16
16
17
19
21
22
23
24
25
25
25
26
26
26
26
22
23
22
22

Dew Point (°C)

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

Relative Humidity (%)

82
80
78
77
76
73
71
68
66
60
56
50
47
45
45
45
44
47
49
51
54
57
60
61

Pressure (mb)

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

Ozone (du)

327
327
328
329
331
333
334
335
335
336
335
332
330
329
329
328
327
326
324
323
322
321
321
320

Tuesday 23

Waxing Gibbous 69%

15:11

01:01

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

Sun - Rise: 04:50, Set: 21:20, Transit: 13:05. Moon - Rise: 15:11, Set: 01:01. Civil Dark: 22:07 - 04:03. Nautical Dark: 23:17 - 02:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

45
57
76
96
77
58
42
47
51
68
67
57
48
43
35
30
20
12
1
4
8
12
21
30

Low Clouds (% Sky Obscured)

5
15
22
30
34
35
37
37
36
38
37
35
35
43
35
30
20
12
0
4
7
10
18
21

Medium Clouds (% Sky Obscured)

8
6
4
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)

34
49
66
88
63
33
5
1
1
1
17
33
48
33
18
2
1
1
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 (%)

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
2
3
3
3
3
5
7
8
8
7
7
7
8
8
7
7
6
6
5
5
4

Chance of Frost

Temperature (°C)

18
17
17
16
16
16
17
18
20
21
23
25
26
27
28
28
29
29
29
29
27
25
24
23

Feels Like (°C)

21
20
14
14
14
13
13
14
17
17
18
19
20
21
28
28
29
30
30
31
28
29
29
28

Dew Point (°C)

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

Relative Humidity (%)

63
65
66
66
67
64
61
59
51
45
40
39
38
37
37
37
38
40
43
46
50
55
60
61

Pressure (mb)

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

Ozone (du)

320
319
319
318
317
316
315
314
313
313
313
313
313
313
313
314
314
314
314
314
314
313
313
313

Wednesday 24

Waxing Gibbous 78%

16:24

01:14

Sun - Rise: 04:50, Set: 21:20, Transit: 13:05. Moon - Rise: 16:24, Set: 01:14. Civil Dark: 22:07 - 04:04. Nautical Dark: 23:17 - 02:54. Astro Dark: N/A - N/A

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 Chichester, West Sussex, United Kingdom (50.84,-0.77)

Generated: 18/06/26 00:51:56. Forecast: 18/06/26 to 24/06/26. Timezone: UTC+1.00