Weather in Arequipa in March
Peru · 20-year averages, March
Prime time. March is about as good as Arequipa gets. Highs average 25.3 °C, lows 12.7 °C, and rain falls on 6 days — nothing in the month is working against you.
Arequipa barely has seasons. March scores 90 out of 100 against a best of 100 in May — a gap small enough that the month you choose matters far less here than the week you choose. Worth keeping in perspective: March is the weakest month of Arequipa's year and it is still a perfectly good one. The downside here is small.
Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average March reaches 30 °C. Across the twenty years measured, the hottest March day reached 30.1 °C and the coldest night fell to 6.8 °C.
March is moderately variable: 2 mm in the driest year against 63 mm in the wettest, around an average of 25 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.
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 67%.
How March sits in the year
Temperatures hold steady either side: 24.7 °C in February, 25.3 here, 25.6 in April. Nothing about the timing within the month matters much.
Daylight in March
Arequipa sits close enough to the equator that daylight barely moves all year — 12.2 hours in March, against a range of just 1.9 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: 17.9 °C between the year's warmest afternoons and coldest nights. At 2397 m, altitude is doing as much work here as latitude: thinner air means fierce sun by day and heat that leaves the moment it sets.
How busy it gets
Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut. March is the value pick for Arequipa: it scores within 10 points of May without carrying May's prices.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Arequipa versus nearby
If Arequipa is one option among several, the nearby comparison is worth making. Arica is the weaker option in March — 9 °C warmer, 5 days less rain. Cusco is the weaker option in March — 8.5 °C cooler, 13 days more rain.
So: March works, with May the better month by 10 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Arequipa
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 25.1 | 12.7 | 9 | 35 | 64 | 13 | 86 |
| February | 24.7 | 12.8 | 10 | 47 | 69 | 12.6 | 83 |
| March | 25.3 | 12.7 | 6 | 25 | 67 | 12.2 | 90 |
| April | 25.6 | 11.9 | 2 | 6 | 56 | 11.7 | 97 |
| May | 25 | 9.8 | 0 | 2 | 40 | 11.4 | 100 |
| June | 24.6 | 9.2 | 0 | 0 | 36 | 11.2 | 100 |
| July | 24.3 | 8.8 | 0 | 2 | 34 | 11.2 | 100 |
| August | 25.3 | 9.2 | 0 | 1 | 32 | 11.5 | 100 |
| September | 26.1 | 10.3 | 1 | 3 | 35 | 12 | 98 |
| October | 26.6 | 11.2 | 1 | 7 | 38 | 12.4 | 98 |
| November | 26.7 | 11.9 | 1 | 4 | 43 | 12.9 | 98 |
| December | 25.7 | 12.5 | 5 | 16 | 55 | 13.1 | 92 |
See all twelve months in Arequipa, or where else to go in March.
Planning the rest of the trip
- Flight time to Arequipa how long you are actually in the air
- Arequipa time zone and the difference from home
- Days until your trip count down to the departure date