Spain · Europe
Naval Station Rota
Which days in December 2026 would work for a D-Day style landing here? Each day is rated
GO, MARGINAL or NO-GO on the things the 1944 planners needed: calm seas, moonlight for the airborne drop,
low tide at dawn and light winds.
Best day to land
Friday Dec 25
✓ GO86/100
🌕 99% moon ·
3.6 ft waves
· low tide 09:11
Climate outlook
Next GO day
Mon Dec 21
Score 79 · Climate outlook
Days this month
7 ✓ GO16 ! MARGINAL8 ✕ NO-GO
Tides here
7.0 ft
Average daily range. Big enough that dawn low-tide timing is scored.
December 2026
✓ GO! MARGINAL✕ NO-GO
1
OUTLOOK
! MARGINAL 55
🌖 61%
🌊 4ft
2
OUTLOOK
✕ NO-GO 46
🌗 51%
🌊 4ft
3
OUTLOOK
✕ NO-GO 44
🌘 40%
🌊 4ft
4
OUTLOOK
! MARGINAL 52
🌘 30%
🌊 4ft
5
OUTLOOK
! MARGINAL 57
🌘 21%
🌊 4ft
6
OUTLOOK
! MARGINAL 59
🌘 13%
🌊 4ft
7
OUTLOOK
! MARGINAL 58
🌘 7%
🌊 4ft
8
OUTLOOK
! MARGINAL 58
🌘 2%
🌊 4ft
9
OUTLOOK
! MARGINAL 58
🌑 0%
🌊 4ft
10
OUTLOOK
! MARGINAL 55
🌑 0%
🌊 4ft
11
OUTLOOK
! MARGINAL 51
🌒 3%
🌊 4ft
12
OUTLOOK
✕ NO-GO 49
🌒 7%
🌊 4ft
13
OUTLOOK
✕ NO-GO 46
🌒 14%
🌊 4ft
14
OUTLOOK
✕ NO-GO 43
🌒 22%
🌊 4ft
15
OUTLOOK
✕ NO-GO 41
🌒 31%
🌊 4ft
16
OUTLOOK
✕ NO-GO 43
🌓 41%
🌊 4ft
17
OUTLOOK
✕ NO-GO 49
🌓 52%
🌊 4ft
18
OUTLOOK
! MARGINAL 58
🌔 62%
🌊 4ft
19
OUTLOOK
! MARGINAL 63
🌔 72%
🌊 4ft
20
OUTLOOK
! MARGINAL 73
🌔 81%
🌊 4ft
21
OUTLOOK
✓ GO 79
🌔 89%
🌊 4ft
22
OUTLOOK
✓ GO 82
🌔 95%
🌊 4ft
23
OUTLOOK
✓ GO 83
🌔 98%
🌊 4ft
24
OUTLOOK
✓ GO 85
🌕 100%
🌊 4ft
25
OUTLOOK
✓ GO 86
🌕 99%
🌊 4ft
26
OUTLOOK
✓ GO 82
🌖 96%
🌊 4ft
27
OUTLOOK
✓ GO 79
🌖 92%
🌊 3ft
28
OUTLOOK
! MARGINAL 74
🌖 85%
🌊 3ft
29
OUTLOOK
! MARGINAL 69
🌖 76%
🌊 3ft
30
OUTLOOK
! MARGINAL 59
🌖 67%
🌊 3ft
31
OUTLOOK
! MARGINAL 51
🌗 56%
🌊 3ft
REC recorded weather for past days · FCST live forecast ·
OUTLOOK beyond the forecast: scored against the same week in past years, with this year's real moon and tides.
Select a day for the full breakdown.
Daily score
Dashed lines mark the GO (75) and MARGINAL (50) thresholds. Faded bars are past days.
0
50
75
100
Tue Dec 1: MARGINAL, 55/100 (Climate outlook)
1
Wed Dec 2: NO-GO, 46/100 (Climate outlook)
Thu Dec 3: NO-GO, 44/100 (Climate outlook)
Fri Dec 4: MARGINAL, 52/100 (Climate outlook)
Sat Dec 5: MARGINAL, 57/100 (Climate outlook)
5
Sun Dec 6: MARGINAL, 59/100 (Climate outlook)
Mon Dec 7: MARGINAL, 58/100 (Climate outlook)
Tue Dec 8: MARGINAL, 58/100 (Climate outlook)
Wed Dec 9: MARGINAL, 58/100 (Climate outlook)
Thu Dec 10: MARGINAL, 55/100 (Climate outlook)
10
Fri Dec 11: MARGINAL, 51/100 (Climate outlook)
Sat Dec 12: NO-GO, 49/100 (Climate outlook)
Sun Dec 13: NO-GO, 46/100 (Climate outlook)
Mon Dec 14: NO-GO, 43/100 (Climate outlook)
Tue Dec 15: NO-GO, 41/100 (Climate outlook)
15
Wed Dec 16: NO-GO, 43/100 (Climate outlook)
Thu Dec 17: NO-GO, 49/100 (Climate outlook)
Fri Dec 18: MARGINAL, 58/100 (Climate outlook)
Sat Dec 19: MARGINAL, 63/100 (Climate outlook)
Sun Dec 20: MARGINAL, 73/100 (Climate outlook)
20
Mon Dec 21: GO, 79/100 (Climate outlook)
Tue Dec 22: GO, 82/100 (Climate outlook)
Wed Dec 23: GO, 83/100 (Climate outlook)
Thu Dec 24: GO, 85/100 (Climate outlook)
Fri Dec 25: GO, 86/100 (Climate outlook)
25
Sat Dec 26: GO, 82/100 (Climate outlook)
Sun Dec 27: GO, 79/100 (Climate outlook)
Mon Dec 28: MARGINAL, 74/100 (Climate outlook)
Tue Dec 29: MARGINAL, 69/100 (Climate outlook)
Wed Dec 30: MARGINAL, 59/100 (Climate outlook)
30
Thu Dec 31: MARGINAL, 51/100 (Climate outlook)
Best days to land in December 2026
ranked
1
Fri Dec 25Climate outlook · GO in 80% of past years
✓ GO86
🌕 99%
· 3.6 ft
· 10 mph
· low 09:11
2
Thu Dec 24Climate outlook · GO in 77% of past years
✓ GO85
🌕 100%
· 3.9 ft
· 10 mph
· low 08:35
3
Wed Dec 23Climate outlook · GO in 74% of past years
✓ GO83
🌔 98%
· 4.1 ft
· 11 mph
· low 07:58
4
Sat Dec 26Climate outlook · GO in 77% of past years
✓ GO82
🌖 96%
· 3.5 ft
· 10 mph
· low 09:54
5
Tue Dec 22Climate outlook · GO in 71% of past years
✓ GO82
🌔 95%
· 4.2 ft
· 12 mph
· low 07:16
6
Mon Dec 21Climate outlook · GO in 71% of past years
✓ GO79
🌔 89%
· 4.1 ft
· 12 mph
· low 06:28
7
Sun Dec 27Climate outlook · GO in 80% of past years
✓ GO79
🌖 92%
· 3.1 ft
· 9 mph
· low 10:36
8
Mon Dec 28Climate outlook · GO in 74% of past years
! MARGINAL74
🌖 85%
· 3.0 ft
· 8 mph
· low 11:18
9
Sun Dec 20Climate outlook · GO in 57% of past years
! MARGINAL73
🌔 81%
· 4.4 ft
· 12 mph
· low 05:39
10
Tue Dec 29Climate outlook · GO in 22% of past years
! MARGINAL69
🌖 76%
· 3.0 ft
· 8 mph
· low 12:07
All sites, December 2026
GO days left and each site's best
Data updated 2026-11-08 11:10 UTC · times shown are local to the site (Europe/Madrid).