Climate averages 1991–2020

Rustaq weather
in June.

A very hot, very dry month: the warmest and the 5th driest of the year.

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

Average high 42.3°C Daytime mean, June
Average low 30.9°C Night-time mean, June
Rainfall 5.0 mm fewer than one day with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Rustaq · average highYear overview

June is a very hot month in Rustaq: daytime highs average 42.3°C and nights cool to about 30.9°C. By daytime temperature it is the warmest month of the year.

Expect about 5.0 mm of rain on fewer than one day, which makes June a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 33 min on an average June day.

The nearest other city in this atlas is As Suwayq (51 km away). In June its highs average 40.8°C, 1.5°C cooler than Rustaq, with 2.5 mm of rain.

Among the 12 cities listed in Oman, Rustaq ranks 3rd of 12 for the warmest June highs and 6th of 12 for the driest June (rainfall, lowest first). The mean June high of those 12 cities is 39.7°C; Rustaq is 2.6°C warmer than that mean.

From June to July, average highs fall by 0.6°C to 41.7°C, and monthly rainfall rises from 5.0 mm to 6.0 mm.

The annual picture

June 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. 1015202530354045 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 500

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

Every month, side by side

Rustaq climate table

1991–2020
Monthly climate averages for Rustaq, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 24.6°C15.6°C15.6°C142.510.911 h
February 27.1°C17.2°C17.2°C142.211.411 h
March 30.7°C20.3°C20.3°C202.712.012 h
April 36.2°C24.9°C24.9°C131.812.713 h
May 40.9°C28.7°C28.7°C2.30.713.313 h
June, selected 42.3°C30.9°C30.9°C5.00.213.514 h
July 41.7°C31.5°C31.5°C6.00.413.413 h
August 40.8°C30.6°C30.6°C1.00.312.913 h
September 39.0°C28.7°C28.7°C1.70.312.312 h
October 35.4°C25.3°C25.3°C2.70.711.612 h
November 29.8°C20.9°C20.9°C111.311.011 h
December 26.0°C17.5°C17.5°C142.210.711 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

June in nearby cities

Distance from Rustaq

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