Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waxing Crescent 46%

11:13

02:51

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

Sun - Rise: 06:16, Set: 19:59, Transit: 13:08. Moon - Rise: 11:13, Set: 02:51. Civil Dark: 20:29 - 05:47. Nautical Dark: 21:05 - 05:11. Astro Dark: 21:44 - 04:32

Total Clouds (% Sky Obscured)

69
55
55
49
21
1
0
0
0
0
5
25
55
14
4
0
1
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

22
45
52
47
21
1
0
0
0
0
0
2
2
2
1
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
17
42
8
2
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

5
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 (%)

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 (%)

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

Chance of Frost

Temperature (°C)

11
11
11
11
12
13
15
17
19
20
20
21
21
20
20
19
17
15
14
13
13
12
12
11

Feels Like (°C)

9
9
10
10
10
11
14
17
19
19
20
20
20
19
19
18
16
14
14
13
13
12
12
11

Dew Point (°C)

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

Relative Humidity (%)

78
77
73
68
57
43
36
35
33
29
27
26
27
28
30
40
48
51
58
60
60
58
54
51

Pressure (mb)

1018
1018
1018
1019
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

397
398
402
407
412
415
420
426
424
415
408
402
399
395
393
390
388
386
384
383
382
382
380
381

Friday 24

First Quarter 57%

12:28

03:22

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

Sun - Rise: 06:15, Set: 20:01, Transit: 13:08. Moon - Rise: 12:28, Set: 03:22. Civil Dark: 20:30 - 05:45. Nautical Dark: 21:06 - 05:09. Astro Dark: 21:45 - 04:30

Total 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

Low 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

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
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)

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

Chance of Frost

Temperature (°C)

11
10
10
10
12
15
17
19
20
21
21
21
20
19
19
17
16
15
15
14
13
13
12
12

Feels Like (°C)

10
9
9
9
11
14
17
19
19
19
19
19
18
18
17
16
16
16
16
15
14
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

50
49
48
48
43
41
39
35
32
32
32
35
40
43
47
52
61
66
67
69
70
71
72
71

Pressure (mb)

1019
1019
1019
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1018
1018
1018

Ozone (du)

382
382
380
380
381
378
377
377
375
374
372
370
371
374
376
378
377
377
376
374
373
372
373
374

Saturday 25

Waxing Gibbous 68%

13:42

03:47

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

Sun - Rise: 06:13, Set: 20:02, Transit: 13:07. Moon - Rise: 13:42, Set: 03:47. Civil Dark: 20:31 - 05:44. Nautical Dark: 21:08 - 05:07. Astro Dark: 21:47 - 04:28

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
1
1
1
2
1
1
2
1
2
1
2
2
4
6

Low 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
1
2

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
0
1
1
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 (%)

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)

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

Chance of Frost

Temperature (°C)

12
11
11
11
13
16
18
20
21
22
22
22
21
20
20
18
17
16
15
14
14
13
13
12

Feels Like (°C)

12
12
11
11
14
16
18
19
20
20
20
20
19
19
18
17
17
16
17
15
15
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

72
72
75
72
64
55
47
39
32
32
35
38
42
46
51
56
62
67
70
74
74
70
68
69

Pressure (mb)

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

Ozone (du)

374
374
372
372
372
371
370
370
369
368
369
370
370
370
370
369
370
372
373
377
378
376
376
376

Sunday 26

Waxing Gibbous 78%

14:51

No Set

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

Sun - Rise: 06:12, Set: 20:03, Transit: 13:07. Moon - Rise: 14:51, Set: No Set. Civil Dark: 20:33 - 05:42. Nautical Dark: 21:09 - 05:06. Astro Dark: 21:48 - 04:26

Total Clouds (% Sky Obscured)

7
6
4
3
3
3
2
2
3
3
2
0
0
0
0
0
3
5
6
4
2
0
7
15

Low Clouds (% Sky Obscured)

3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
15

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
1
1
1
1
2
2
3
3
2
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 (%)

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)

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

Chance of Frost

Temperature (°C)

12
11
11
12
14
16
18
20
21
22
22
22
21
21
20
18
17
16
15
15
14
14
13
13

Feels Like (°C)

12
11
12
12
14
17
18
19
20
20
20
21
20
20
20
19
17
17
17
16
15
15
15
14

Dew Point (°C)

7
7
8
8
7
7
6
5
4
5
7
7
7
7
8
9
10
11
11
11
11
10
10
9

Relative Humidity (%)

72
76
79
76
65
54
43
36
33
34
37
37
39
41
46
55
66
73
76
79
79
79
79
79

Pressure (mb)

1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

374
374
373
370
369
367
367
367
367
366
365
365
364
364
364
364
364
367
368
369
370
371
373
376

Monday 27

Waxing Gibbous 86%

15:58

04:09

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

Sun - Rise: 06:11, Set: 20:04, Transit: 13:07. Moon - Rise: 15:58, Set: 04:09. Civil Dark: 20:34 - 05:41. Nautical Dark: 21:10 - 05:04. Astro Dark: 21:50 - 04:24

Total Clouds (% Sky Obscured)

20
19
18
18
15
13
11
20
30
40
31
17
3
14
22
32
32
38
50
65
78
90
85
79

Low Clouds (% Sky Obscured)

20
19
16
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
12
5
3
0
12
23
35
31
26

High Clouds (% Sky Obscured)

0
3
7
14
13
9
8
20
30
40
31
17
3
4
2
0
11
33
50
65
78
90
85
79

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

Chance of Frost

Temperature (°C)

12
12
12
13
14
17
19
20
21
21
22
21
21
21
19
18
17
16
16
15
14
14
13
13

Feels Like (°C)

14
13
13
14
16
19
20
20
20
21
21
20
21
20
20
20
20
15
16
17
16
15
14
12

Dew Point (°C)

9
9
8
8
8
9
8
8
8
8
8
8
8
9
9
10
10
10
10
10
10
9
9
8

Relative Humidity (%)

79
79
77
75
66
59
49
44
42
42
42
43
44
46
51
57
63
66
69
74
74
74
75
74

Pressure (mb)

1020
1019
1019
1019
1020
1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015

Ozone (du)

378
381
380
385
385
382
383
383
383
385
384
383
381
380
378
375
373
373
372
372
371
370
369
369

Tuesday 28

Waxing Gibbous 92%

17:04

04:29

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 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Good
02 OK
03 OK

Sun - Rise: 06:09, Set: 20:05, Transit: 13:07. Moon - Rise: 17:04, Set: 04:29. Civil Dark: 20:35 - 05:39. Nautical Dark: 21:12 - 05:02. Astro Dark: 21:52 - 04:22

Total Clouds (% Sky Obscured)

73
77
79
77
73
76
72
71
68
62
74
86
98
76
55
34
32
35
25
22
18
10
7
9

Low Clouds (% Sky Obscured)

1
2
3
3
10
15
20
14
8
2
12
25
36
28
18
9
6
3
0
0
0
0
3
5

Medium Clouds (% Sky Obscured)

22
26
30
34
48
63
72
71
68
62
66
63
63
43
24
4
5
7
5
8
8
10
7
9

High Clouds (% Sky Obscured)

69
77
79
77
73
76
72
68
37
5
4
3
1
6
7
7
6
5
4
3
2
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
1
1
1
2
2
1
2
2
1
1
1
0
0
0
0
1
1
2
14
22

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
3
3
3
4
6
8
9
10
11
10
10
9
8
6
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

12
12
13
13
14
16
18
20
20
21
21
21
20
19
19
18
17
16
16
15
15
15
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
72
69
65
62
58
54
50
49
48
47
50
55
58
62
66
69
71
72
71
73
75
76
76

Pressure (mb)

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

Ozone (du)

370
370
369
369
368
370
372
374
376
377
378
378
377
377
375
374
372
370
367
365
361
358
354
355

Wednesday 29

Waxing Gibbous 97%

18:08

04:48

Sun - Rise: 06:08, Set: 20:06, Transit: 13:07. Moon - Rise: 18:08, Set: 04:48. Civil Dark: 20:36 - 05:38. Nautical Dark: 21:13 - 05:01. Astro Dark: 21:53 - 04:21

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 Testaccio, Province of Rome, Italy (41.86,12.48)

Generated: 23/04/26 03:15:55. Forecast: 23/04/26 to 29/04/26. Timezone: UTC+2.00