Weather in Trujillo in January

A hard month. January asks something of you. Go in knowing what. Daytime highs average 36.2 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.

January ranks 6 of 12 in Trujillo: past the worst of the year but short of February, which is the month to book if the dates are open.

Rain on 7 days, 0 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.

What the averages hide

Averages flatten a month, and this one hides a few things: 23 days of the month clear 35 °C — that is not a heatwave, it is the month. Across the twenty years measured, the hottest January day reached 41.2 °C and the coldest night fell to 22.7 °C, and the wettest single day dropped 36 mm — roughly 157% of the month's rain in one day.

This is the volatile part. January rainfall has ranged from 3 mm to 76 mm across the twenty years measured — a 73 mm spread around an average of 23 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 8.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 72%.

How January sits in the year

Temperatures hold steady either side: 35.8 °C in December, 36.2 here, 36.3 in February. Nothing about the timing within the month matters much.

Daylight in January

Trujillo sits close enough to the equator that daylight barely moves all year — 12.5 hours in January, against a range of just 0.9 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 22.4 °C in January — comfortable for a proper swim. This is the warmest the water gets all year.

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 — 7 points weaker on weather, and materially quieter.

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

January in Trujillo versus nearby

If Trujillo is one option among several, the nearby comparison is worth making. Piura is close enough to be a coin toss — within a degree on temperature, 4 days less rain. Lima is a better bet in January — 6.1 °C cooler, 7 days less rain.

So: January is effectively as good as it gets here — 1 points behind February, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Trujillo

See all twelve months in Trujillo, or where else to go in January.