Climate averages 1991–2020

Queluz weather
in September.

A warm, fairly dry month: the 3rd warmest and the 4th driest of the year. Meets the pleasant-weather rule

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

Average high 22.9°C Daytime mean, September
Average low 17.4°C Night-time mean, September
Rainfall 29 mm 4 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Queluz · average highYear overview

September is a warm month in Queluz: daytime highs average 22.9°C and nights cool to about 17.4°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 29 mm of rain on roughly 4 days, which makes September a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 29 min on an average September day.

The nearest other city in this atlas is Amadora (2 km away). In September its highs average 24.3°C, 1.4°C warmer than Queluz, with 29 mm of rain.

Among the 12 cities listed in Portugal, Queluz ranks 12th of 12 for the warmest September highs and joint 4th of 12 for the driest September (rainfall, lowest first). The mean September high of those 12 cities is 24.6°C; Queluz is 1.7°C cooler than that mean.

From September to October, average highs fall by 2.8°C to 20.1°C, and monthly rainfall rises from 29 mm to 77 mm.

The annual picture

September 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. 51015202530 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 1000

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

Every month, side by side

Queluz climate table

1991–2020
Monthly climate averages for Queluz, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 13.8°C9.7°C9.7°C688.99.810 h
February 14.3°C9.7°C9.7°C527.610.711 h
March 16.0°C11.0°C11.0°C538.111.912 h
April 16.9°C12.1°C12.1°C518.413.213 h
May 19.2°C14.1°C14.1°C425.914.314 h
June 21.9°C16.4°C16.4°C9.92.114.815 h
July 23.8°C17.7°C17.7°C2.00.614.615 h
August 24.4°C18.2°C18.2°C4.11.013.714 h
September, selected 22.9°C17.4°C17.4°C294.112.512 h
October 20.1°C15.6°C15.6°C778.911.211 h
November 16.6°C12.6°C12.6°C8210.210.110 h
December 14.7°C10.7°C10.7°C799.39.510 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

September in nearby cities

Distance from Queluz

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 Queluz) is explained once on the Queluz year overview and on the Sources, method and limits page.

Lisbon and Amadora lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.