Climate averages 1991–2020

Sullana weather
in March.

A hot, wet month: one of the warmest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 32.8°C Daytime mean, March
Average low 23.2°C Night-time mean, March
Rainfall 113 mm 11 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Sullana · average highYear overview

March is a hot month in Sullana: daytime highs average 32.8°C and nights cool to about 23.2°C. By daytime temperature it is one of the warmest months of the year.

Expect about 113 mm of rain on roughly 11 days, which makes March a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 08 min on an average March day.

The nearest other city in this atlas is Piura (31 km away). In March its highs average 33.1°C, about as warm as Sullana, with 107 mm of rain.

Among the 24 cities listed in Peru, Sullana ranks 2nd of 24 for the warmest March highs and 13th of 24 for the driest March (rainfall, lowest first). The mean March high of those 24 cities is 25.3°C; Sullana is 7.4°C warmer than that mean.

From March to April, average highs fall by 0.2°C to 32.6°C, and monthly rainfall falls from 113 mm to 42 mm.

The annual picture

March in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Sullana climate table

1991–2020
Monthly climate averages for Sullana, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 32.8°C21.9°C21.9°C355.212.412 h
February 32.5°C23.2°C23.2°C759.912.312 h
March, selected 32.8°C23.2°C23.2°C11311.212.112 h
April 32.6°C22.0°C22.0°C426.512.012 h
May 31.7°C20.4°C20.4°C4.91.811.912 h
June 29.9°C18.7°C18.7°C1.80.811.812 h
July 28.7°C17.5°C17.5°C0.60.211.912 h
August 28.6°C17.0°C17.0°C0.20.112.012 h
September 29.2°C17.3°C17.3°C1.30.412.112 h
October 29.8°C17.7°C17.7°C2.50.912.212 h
November 30.4°C18.3°C18.3°C6.91.812.312 h
December 31.6°C20.0°C20.0°C183.812.412 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

March in nearby cities

Distance from Sullana

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sullana) is explained once on the Sullana year overview and on the Sources, method and limits page.