Weather in Arica in July

A good month. July works. It is not the peak, but nothing about it fights you. Highs average 32 °C, lows 19.4 °C, and rain falls on 1 days — nothing in the month is working against you.

July ranks 2 of 12 in Arica. Only June scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain falls on only 1 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 32 °C days and 19.4 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 25 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest July day reached 38.3 °C and the coldest night fell to 13.6 °C, and the wettest single day dropped 27 mm — roughly 675% of the month's rain in one day.

July is dependably dry, and that reliability is the point: across the twenty years measured, the wettest July on record still only managed 31 mm, and the driest managed 0 mm. There is no meaningful variability to plan around, which makes this one of the few months anywhere that you can build a fixed outdoor itinerary against without a fallback. The wettest single day in twenty years of Julys brought 27 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.

Wind is light at 6.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 42%.

How July sits in the year

Temperatures hold steady either side: 32.4 °C in June, 32 here, 32.8 in August. Nothing about the timing within the month matters much.

Daylight in July

July sits at the dark end of Arica's year — 11.1 hours of daylight against 13.2 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

Sea temperature

The sea sits at about 17.5 °C in July — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 24.3 °C in February and bottoms out at 17.1 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

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

July in Arica versus nearby

If Arica is one option among several, the nearby comparison is worth making. Arequipa is a better bet in July — 7.7 °C cooler, 1 day less rain. Antofagasta is a better bet in July — 16 °C cooler, 1 day less rain.

So: July is effectively as good as it gets here — 0 points behind June, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Arica

See all twelve months in Arica, or where else to go in July.