Weather in San Isidro in February

A good month. February is a solid month to be in San Isidro. Highs average 27.8 °C, lows 19.9 °C, and rain falls on 12 days — nothing in the month is working against you.

February is the highest-scoring month of the twelve. The nearest rival is January, and the month at the other end of the year is September.

Rain on 12 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest February day reached 31.6 °C and the coldest night fell to 16.9 °C, and the wettest single day dropped 32 mm — roughly 53% of the month's rain in one day.

February is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest February on record still delivered 117 mm against 1 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 60 mm average is a reasonable planning figure, not a promise.

Wind is light at 1.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 77%, high enough to notice on the warm days without dominating them.

How February sits in the year

Temperatures hold steady either side: 26.4 °C in January, 27.8 here, 29.2 in March. Nothing about the timing within the month matters much.

Daylight in February

San Isidro sits close enough to the equator that daylight barely moves all year — 11.8 hours in February, against a range of just 1.1 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 9.3 °C between the year's warmest afternoons and coldest nights. At 713 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, March is the trade worth considering — 10 points weaker on weather, and materially quieter.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

February in San Isidro versus nearby

If San Isidro is one option among several, the nearby comparison is worth making. San José is a better bet in February — within a degree on temperature, 5 days less rain. Limón is the weaker option in February — within a degree on temperature, 3 days more rain.

So: February is the answer for San Isidro. If it is booked out or priced out, January is the next best thing at 2 points behind, and September is the month to keep off the shortlist.

Every month in San Isidro

See all twelve months in San Isidro, or where else to go in February.