Cabo San Lucas Weather in May

May brings a real jump in heat, with highs reaching 83.4°F, while rain stays essentially absent at 0.2 days on average, the dry season's last full month before summer humidity arrives.

Humidity holds at a manageable 56%, so despite the higher temperatures, the air still feels dry compared to what June and beyond bring.

The sea warms noticeably to 77°F, a big step up from April and finally starting to feel genuinely warm rather than just tolerable for a swim.

Whale watching season has typically ended by May, with the humpbacks having moved on to their summer feeding grounds, this is a trade-off month, giving up the whales for warmer water and thinner crowds.

No hurricane activity has been recorded historically in May, the safe window continues, with Eastern Pacific hurricane season not beginning until roughly mid-May to June depending on the year, and direct impacts to Cabo specifically remaining rare even once the season opens.

Rates continue easing through May as both spring break and whale season wind down; this is a genuine value month for travelers who don't need to see whales and are comfortable with rising heat.

Dorado and striped marlin fishing both pick up as the water warms, making May a solid month for sportfishing charters heading out from the marina.

Golf is still playable and enjoyable, though the rising heat means early tee times become noticeably more appealing than they were in the cooler winter months.

Compared to peak winter, May trades whale watching and cooler evenings for warmer water and meaningfully lower prices, a fair swap for travelers prioritizing value and beach time over wildlife.

Pack for real heat now: lighter fabrics, strong sun protection, and plenty of hydration, since the desert sun combined with rising temperatures makes afternoon activity more demanding than earlier in the year.