Cabo San Lucas weather by month & the best time to visit
Mexico · beach resort · hot desert climate
The best time to visit Cabo San Lucas is March — its sunniest month (Sunshine Score 99/100), with April and May close behind. Cabo San Lucas averages about 3,445 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 3 mm of rain in March.
When is the best time to visit Cabo San Lucas?
For sunshine, the best time to visit Cabo San Lucas is March, then April and May. The dullest month is September (81/100, 99 mm of rain). The full month-by-month picture is in the table below.
How sunny is Cabo San Lucas?
Cabo San Lucas is one of the sunniest places on Earth: about 3,445 hours of sunshine a year. March (99/100) is noticeably better than September (81). It ranks #17 of 62 destinations in Mexico for annual sunshine, above the national median of 3,138 hours. Rain is strongly seasonal here: roughly 71% of the year's 262 mm falls in the three months around September.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 98 | 24° / 75°F | 18° / 64°F | 9 mm | 6 | 24° / 75°F |
| February | 98 | 24° / 75°F | 17° / 63°F | 11 mm | 8 | 22° / 72°F |
| March | 99 | 24° / 75°F | 17° / 63°F | 3 mm | 10 | 21° / 70°F |
| April | 99 | 25° / 77°F | 18° / 64°F | 2 mm | 11 | 21° / 70°F |
| May | 99 | 26° / 79°F | 19° / 66°F | 1 mm | 11 | 22° / 72°F |
| June | 99 | 28° / 82°F | 21° / 70°F | 3 mm | 11 | 24° / 75°F |
| July | 96 | 30° / 86°F | 24° / 75°F | 19 mm | 11 | 25° / 77°F |
| August | 89 | 30° / 86°F | 26° / 79°F | 60 mm | 11 | 29° / 84°F |
| September | 81 | 30° / 86°F | 26° / 79°F | 99 mm | 10 | 28° / 82°F |
| October | 95 | 29° / 84°F | 24° / 75°F | 26 mm | 9 | 29° / 84°F |
| November | 96 | 27° / 81°F | 22° / 72°F | 18 mm | 7 | 27° / 81°F |
| December | 98 | 24° / 75°F | 19° / 66°F | 11 mm | 6 | 24° / 75°F |
Sea temperature in Cabo San Lucas by month
The sea off Cabo San Lucas is warmest in August at around 29°C / 84°F, and coolest in March at 21°C / 70°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Cabo San Lucas: questions and answers
What kind of destination is Cabo San Lucas?
Cabo San Lucas is a beach resort in Mexico with a hot desert climate — the sea reaches 29°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Cabo San Lucas get a year?
Cabo San Lucas gets about 3,445 hours of sunshine a year, at its best around March.
When is the best time to visit Cabo San Lucas?
The sunniest time to visit Cabo San Lucas is March, when the Sunshine Score peaks at 99/100 (with April and May close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Cabo San Lucas?
September is the least sunny month in Cabo San Lucas, scoring 81/100 with about 99 mm of rain.
What is the sea temperature in Cabo San Lucas?
The sea in Cabo San Lucas ranges from about 21°C (March) to 29°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Cabo San Lucas?
The typical midday UV index in Cabo San Lucas peaks around 11 (extreme) in April, easing to about 6 (high) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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