Cuba · Latin America
Naval Station Guantanamo Bay
Which days in January 2027 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
Thursday Jan 21
✓ GO88/100
🌔 98% moon ·
3.7 ft waves
Climate outlook
Next GO day
Sun Jan 17
Score 75 · Climate outlook
Days this month
12 ✓ GO19 ! MARGINAL0 ✕ NO-GO
Tides here
Small
About 1.1 ft a day, so tide timing is left out of the score here.
January 2027
✓ GO! MARGINAL✕ NO-GO
1
OUTLOOK
! MARGINAL 63
🌗 43%
🌊 4ft
2
OUTLOOK
! MARGINAL 58
🌘 33%
🌊 4ft
3
OUTLOOK
! MARGINAL 59
🌘 23%
🌊 4ft
4
OUTLOOK
! MARGINAL 60
🌘 15%
🌊 4ft
5
OUTLOOK
! MARGINAL 60
🌘 8%
🌊 4ft
6
OUTLOOK
! MARGINAL 60
🌘 3%
🌊 4ft
7
OUTLOOK
! MARGINAL 60
🌑 1%
🌊 4ft
8
OUTLOOK
! MARGINAL 61
🌑 0%
🌊 4ft
9
OUTLOOK
! MARGINAL 61
🌒 2%
🌊 4ft
10
OUTLOOK
! MARGINAL 61
🌒 6%
🌊 4ft
11
OUTLOOK
! MARGINAL 61
🌒 12%
🌊 4ft
12
OUTLOOK
! MARGINAL 61
🌒 19%
🌊 3ft
13
OUTLOOK
! MARGINAL 62
🌒 28%
🌊 3ft
14
OUTLOOK
! MARGINAL 61
🌒 38%
🌊 3ft
15
OUTLOOK
! MARGINAL 61
🌓 49%
🌊 3ft
16
OUTLOOK
! MARGINAL 65
🌔 59%
🌊 3ft
17
OUTLOOK
✓ GO 75
🌔 70%
🌊 4ft
18
OUTLOOK
✓ GO 85
🌔 79%
🌊 4ft
19
OUTLOOK
✓ GO 86
🌔 87%
🌊 4ft
20
OUTLOOK
✓ GO 87
🌔 93%
🌊 4ft
21
OUTLOOK
✓ GO 88
🌔 98%
🌊 4ft
22
OUTLOOK
✓ GO 88
🌕 100%
🌊 4ft
23
OUTLOOK
✓ GO 88
🌕 100%
🌊 4ft
24
OUTLOOK
✓ GO 87
🌖 97%
🌊 4ft
25
OUTLOOK
✓ GO 86
🌖 93%
🌊 4ft
26
OUTLOOK
✓ GO 84
🌖 87%
🌊 4ft
27
OUTLOOK
✓ GO 82
🌖 79%
🌊 4ft
28
OUTLOOK
✓ GO 79
🌖 69%
🌊 4ft
29
OUTLOOK
! MARGINAL 75
🌗 59%
🌊 4ft
30
OUTLOOK
! MARGINAL 66
🌗 49%
🌊 4ft
31
OUTLOOK
! MARGINAL 59
🌘 38%
🌊 4ft
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
Fri Jan 1: MARGINAL, 63/100 (Climate outlook)
1
Sat Jan 2: MARGINAL, 58/100 (Climate outlook)
Sun Jan 3: MARGINAL, 59/100 (Climate outlook)
Mon Jan 4: MARGINAL, 60/100 (Climate outlook)
Tue Jan 5: MARGINAL, 60/100 (Climate outlook)
5
Wed Jan 6: MARGINAL, 60/100 (Climate outlook)
Thu Jan 7: MARGINAL, 60/100 (Climate outlook)
Fri Jan 8: MARGINAL, 61/100 (Climate outlook)
Sat Jan 9: MARGINAL, 61/100 (Climate outlook)
Sun Jan 10: MARGINAL, 61/100 (Climate outlook)
10
Mon Jan 11: MARGINAL, 61/100 (Climate outlook)
Tue Jan 12: MARGINAL, 61/100 (Climate outlook)
Wed Jan 13: MARGINAL, 62/100 (Climate outlook)
Thu Jan 14: MARGINAL, 61/100 (Climate outlook)
Fri Jan 15: MARGINAL, 61/100 (Climate outlook)
15
Sat Jan 16: MARGINAL, 65/100 (Climate outlook)
Sun Jan 17: GO, 75/100 (Climate outlook)
Mon Jan 18: GO, 85/100 (Climate outlook)
Tue Jan 19: GO, 86/100 (Climate outlook)
Wed Jan 20: GO, 87/100 (Climate outlook)
20
Thu Jan 21: GO, 88/100 (Climate outlook)
Fri Jan 22: GO, 88/100 (Climate outlook)
Sat Jan 23: GO, 88/100 (Climate outlook)
Sun Jan 24: GO, 87/100 (Climate outlook)
Mon Jan 25: GO, 86/100 (Climate outlook)
25
Tue Jan 26: GO, 84/100 (Climate outlook)
Wed Jan 27: GO, 82/100 (Climate outlook)
Thu Jan 28: GO, 79/100 (Climate outlook)
Fri Jan 29: MARGINAL, 75/100 (Climate outlook)
Sat Jan 30: MARGINAL, 66/100 (Climate outlook)
30
Sun Jan 31: MARGINAL, 59/100 (Climate outlook)
Best days to land in January 2027
ranked
1
Thu Jan 21Climate outlook · GO in 94% of past years
✓ GO88
🌔 98%
· 3.7 ft
· 11 mph
2
Fri Jan 22Climate outlook · GO in 91% of past years
✓ GO88
🌕 100%
· 3.7 ft
· 12 mph
3
Sat Jan 23Climate outlook · GO in 91% of past years
✓ GO88
🌕 100%
· 3.8 ft
· 12 mph
4
Sun Jan 24Climate outlook · GO in 91% of past years
✓ GO87
🌖 97%
· 3.9 ft
· 13 mph
5
Wed Jan 20Climate outlook · GO in 94% of past years
✓ GO87
🌔 93%
· 3.7 ft
· 11 mph
6
Tue Jan 19Climate outlook · GO in 97% of past years
✓ GO86
🌔 87%
· 3.7 ft
· 12 mph
7
Mon Jan 25Climate outlook · GO in 91% of past years
✓ GO86
🌖 93%
· 3.9 ft
· 12 mph
8
Mon Jan 18Climate outlook · GO in 97% of past years
✓ GO85
🌔 79%
· 3.7 ft
· 12 mph
9
Tue Jan 26Climate outlook · GO in 94% of past years
✓ GO84
🌖 87%
· 3.8 ft
· 12 mph
10
Wed Jan 27Climate outlook · GO in 94% of past years
✓ GO82
🌖 79%
· 3.8 ft
· 12 mph
All sites, January 2027
GO days left and each site's best
Data updated 2026-11-08 11:10 UTC · times shown are local to the site (America/Havana).