Cabo San Lucas Weather by Month
Baja California Sur, Mexico
The best time to visit Cabo San Lucas for dry, calm weather is March, April and May, when rain falls on only 0.1 to 0.2 days a month and storm activity is low or absent in the records. The wettest month is September, with 9.1 rain days. Pick a month below to see its full numbers, or use the trip odds tool on any month page for your exact dates.
Average highs run from 77°F in January to 88.9°F in August. Sea temperature ranges from 71.3°F in February to 87.4°F in August.
Hurricane season here runs mid-May to November 30. In the storm history we hold, September has the most recorded storm days (29 storm days since 1985). This is a look at the past, not a forecast, so book a flexible rate if you travel in season.
Cabo San Lucas monthly averages
| Month | High | Low | Rain days | Rain (in) | Humidity | Sea | Storm days |
|---|---|---|---|---|---|---|---|
| January | 77°F | 63.3°F | 0.9 | 0.2 | 63% | 73.4°F | 0 |
| February | 77.1°F | 63.1°F | 0.7 | 0.3 | 62% | 71.3°F | 0 |
| March | 78.8°F | 64.5°F | 0.2 | 0 | 58% | 71.7°F | 0 |
| April | 80.8°F | 67°F | 0.1 | 0 | 56% | 74.1°F | 0 |
| May | 83.4°F | 70.2°F | 0.2 | 0 | 56% | 77°F | 0 |
| June | 84.8°F | 73.7°F | 0.9 | 0.3 | 63% | 80.3°F | 4 |
| July | 88.1°F | 78.3°F | 3.3 | 0.7 | 67% | 84.9°F | 2 |
| August | 88.9°F | 79.9°F | 8.1 | 2.4 | 73% | 87.4°F | 14 |
| September | 87.3°F | 79°F | 9.1 | 4.9 | 78% | 87°F | 29 |
| October | 87°F | 76.4°F | 2.8 | 1.2 | 69% | 85.4°F | 8 |
| November | 83.3°F | 71°F | 1.4 | 0.5 | 65% | 81.3°F | 0 |
| December | 78.7°F | 65.7°F | 0.7 | 0.2 | 64% | 78.2°F | 0 |
Weather data by Open-Meteo.com (CC BY 4.0) and the NOAA National Hurricane Center. Data updated September 2026. How we calculate.
Frequently asked questions
What is the best time to visit Cabo San Lucas?
For dry weather with little storm risk, March, April and May are the best months, with 0.1 to 0.2 rain days a month. A rain day is at least 0.04 inches of rain, and is often a short shower.
What is the rainiest month in Cabo San Lucas?
September, with about 9.1 rain days on average over 30 years of daily records.
What is the hottest month in Cabo San Lucas?
August, with average highs of about 88.9°F. The coolest month is January, at about 77°F.
How warm is the sea in Cabo San Lucas?
Sea temperature averages 71.3°F in February and 87.4°F in August. It comes from a short marine record of about 4 years, so read it as a recent average.
When is hurricane season in Cabo San Lucas?
mid-May to November 30. September has the most recorded storm days in our history. Storm history starts in 1985 and is not a forecast.