01The short answer
Todos Santos is an ocean-cooled desert sitting on the Tropic of Cancer. The annual mean is about 73°F / 23°C, rainfall runs roughly 8 to 13 in / 200 to 335 mm a year depending on whose dataset you trust[1], and almost all of it falls in a short late-summer window. The other 8 or 9 months are dry, sunny, and 70-something by day.
I check the surf forecast most mornings. I check the weather forecast maybe 10 times a year, and 8 of those are in September. That's the entire climate story in 2 sentences, but the mechanics are genuinely interesting, so stay with me.
02Why it works: a desert with air conditioning
Three things have to be true at once to get weather like this, and here they all are in one place.
The latitude. We sit right on the Tropic of Cancer[2]. Enough sun for year-round warmth and a winter that never really arrives; January, the coolest month, still runs about 72°F / 22°C by day[3].
The desert. Dry air heats fast and cools fast, so evenings drop into genuinely pleasant sleeping weather most of the year. Winter nights dip to around 59 to 61°F / 15 to 16°C[3]. You'll want a sweater at dinner and you'll be glad about it.
The cold current. A cool Pacific current runs down this coast for most of the year[2], and the onshore breeze it generates does most of the work. It's why Todos Santos and Pescadero commonly run 5 to 10°F cooler than La Paz and Cabo through spring and summer[4]. Same peninsula, different experience. Cabo bakes in August; we open the windows.
03The mountains that run the show
Look east from anywhere in the corridor and you're looking at the Sierra de la Laguna, the highest range in Baja California Sur, topping out around 6,857 ft / 2,090 m[5]. Most visitors treat it as scenery. It's actually the machine.
The range splits the cape into two climates. The Pacific side (us) gets the cool current and the breeze; the Sea of Cortez side gets hotter, more humid summers, with temperature differences between the two coasts running as much as 15°F[6]. When people say Todos Santos has a microclimate, this split is what they're gesturing at.
The rain math is wild. The lowlands around us get less than 8 in / 200 mm a year, while the summits pull down 700 to 1,000 mm, mostly wrung out of late-summer tropical systems[7]. The mountains catch the moisture, store it, and feed the aquifers that supply this whole region, including the wells this corridor drinks from[7]. A pine and oak forest at the top of a desert peninsula (biologists call it a sky island, and UNESCO made it a biosphere reserve). I think that's the coolest fact in this article.
One honest caveat, because I promised honesty: the mountains moderate the day-to-day weather, and a major hurricane still arrives as a major hurricane. Which brings us to the section you actually scrolled here for.
04The two seasons
The corridor has 2 seasons, and once you know them the whole calendar makes sense.
The dry season: November through June. This is the postcard. Days in the 70s°F, cool nights, essentially zero rain (the driest months record 0 mm[1]), whales offshore December through April, and the kind of light photographers move here for. May and June warm up toward the low 80s with the lowest humidity of the year[1].
The green season: July through October. Warmer, muggier, and alive. August peaks around 86 to 88°F / 30 to 31°C by day[3], September is the wettest and most humid month[1], and the desert does something most people never see: it turns green, practically overnight. The ocean hits its warmest, around 84°F / 29°C in September[1], and the surf pumps.
Locals split on which season they love more, which tells you something. The snowbirds miss the best waves and the green hills. The summer people sweat through September. Pick your tradeoff.
05Hurricanes, honestly
You asked, so here it is without the brochure gloss.
The eastern Pacific hurricane season runs June through November, with the real exposure here August through October[2]. Most seasons, what that means in practice is a handful of humid, watchful weeks, some serious rain, and arroyos that briefly turn into rivers. The storms feed the mountains, the mountains feed the aquifer, and the desert blooms. That's the normal year.
And then there's the not-normal year. Hurricane Odile came ashore near Cabo in September 2014 as the benchmark storm for this region[2,7], and people who were here then still date things by it. Power was out for weeks in places. I won't pretend that can't happen again; it can.
Modern forecasting gives you days of notice, and the local routine is well rehearsed: water, fuel, cash, charged batteries, and staying off the roads while the arroyos run. If you build here, you build for it (concrete construction handles this climate well, and solar with batteries turns an outage into an inconvenience). The full storm-season checklist is in our safety guide.
06How it stacks up against the famous ones
Every place with good weather has an asterisk. Here's the honest comparison, asterisks included.
| Place | Typical daytime range | Rain / humidity | The asterisk |
|---|---|---|---|
| Todos Santos corridor | 72–88°F / 22–31°C | ~8–13 in/yr, dry most of the year | Aug–Oct heat, humidity & storm watch |
| Honolulu | 75–82°F / 24–28°C | 74–76% humidity all year | Humidity never takes a day off |
| San Diego | 63–77°F / 17–25°C | <12 in/yr | May Gray, June Gloom, 68°F summer ocean |
vs Hawaii. Honolulu's daytime highs run 75 to 82°F year-round with relative humidity parked at 74 to 76%[8]. Gorgeous, and permanently tropical. The corridor gives you similar warmth with desert air for most of the year; our humidity only goes Hawaiian in late summer. If sticky air wears on you, the desert coast wins. If you need lush green 12 months a year, Hawaii wins; we only get it in fall.
vs San Diego. I lived there for years, so this one's personal. San Diego's "perfect weather" is real but cooler than people remember: highs of 63 to 77°F across the year[9], a marine layer that famously eats May and June[10], and a summer ocean around 68 to 72°F[10]. Here I get warmer days, a dramatically warmer ocean, and roughly the same amount of rain. What I gave up: nothing weather-related. (Costco, yes. Weather, no.)
vs the Mediterranean. Coastal Spain and Greece get compared to us a lot, and fair enough: dry summers, mild winters. The difference is winter. Theirs is real (50s, rain, gray stretches); ours is 72°F and cloudless. On climate alone, I think the corridor beats every Mediterranean postcard I've visited. On 2,000-year-old ruins, they've got us.
07What this means practically
You'll live outside. Budget accordingly: the patio, the outdoor kitchen, and the shade structure get more use than the living room. Every house here is really 2 houses, and the better one has no walls.
AC is a September appliance. Plenty of homes on the coast side run on cross-breeze 10 months a year. Mini-splits in the bedrooms earn their keep in the green season, and that's about it.
Location tunes the microclimate. In Pescadero, west of Highway 19 toward the beach means stronger breeze and cooler summers; east of 19 toward the mountains means warmer, stiller air and better farmland. The difference is real enough that it should factor into where you buy, and it's one of the first things I walk clients through at Selling Sur.
Go solar. Sunshine is the one input this place never runs short of, and the payback math here is about as good as it gets.
08Quick answers
What's the best month to visit? For classic postcard weather, November through April. For warm water, waves, and green hills, October is the sleeper pick: the storms have mostly passed, and the desert is still green.
Does it ever get cold? By Baja standards, January nights around 59°F / 15°C count as cold. Bring the one sweater. You'll wear it at dinner and nowhere else.
How hot does summer really get? August and September run 86 to 88°F / 30 to 31°C by day with real humidity[3]. Warm, honestly. The breeze and the 84°F ocean are the compensations.
Can you surf year-round? Yes. Wetsuit top or light fullsuit roughly December through May (water bottoms out near 68°F[1]), trunks the rest.
Is the weather why people leave? Almost never. When people bail on the corridor, it's the slower pace or the distance from family. I've never once heard "the weather got to me."
09Sources
[1] Climate-Data.org, Todos Santos climate normals · [2] Climates to Travel, Todos Santos · [3] Weather Atlas, Todos Santos monthly averages · [4] TodosSantos.cc, local weather notes · [5] Wikipedia, Sierra de la Laguna · [6] CaboSanLucas.net, cape microclimates · [7] InternationalParks.org, Sierra La Laguna Biosphere Reserve · [8] Weather-US, Honolulu climate · [9] Weather-US, San Diego climate · [10] Wikipedia, Climate of San Diego. Figures are long-term averages and vary between datasets; check primary sources before betting a build on them.
Curtis Gabhart, CCIM brokers real estate through Selling Sur in the Todos Santos–Pescadero–Cerritos corridor, and lives in Pescadero, at San Pedrito Beach. He doesn't sell a fantasy; he sells information so you can make a smart call, including the call that Baja isn't right for you.