Weather in Katoomba in July

Shoulder season. July sits in between. You will get good days and you will lose some. Highs sit at 10.3 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

July ranks 11 of 12 — near the bottom of Katoomba's year. October is the month that works, and the swing between the two is 29 points, which is a different holiday rather than a slightly better one.

Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 10.3 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 9 nights fall below freezing. Across the twenty years measured, the hottest July day reached 17.8 °C and the coldest night fell to -4.7 °C, and the wettest single day dropped 35 mm — roughly 97% of the month's rain in one day.

July is moderately variable: 4 mm in the driest year against 79 mm in the wettest, around an average of 36 mm. Roughly two Julys in three land near that average, and the third does something else entirely.

Wind is light at 1.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 80%, which at 10.3 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How July sits in the year

Temperatures hold steady either side: 10.8 °C in June, 10.3 here, 11.9 in August. Nothing about the timing within the month matters much.

Daylight in July

July sits at the dark end of Katoomba's year — 10.1 hours of daylight against 14.4 at midsummer, gaining 0.5 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

An inland climate

With no coast nearby, the year swings a fair way — 26.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. At 991 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

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

July in Katoomba versus nearby

If Katoomba is one option among several, the nearby comparison is worth making. Bathurst is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Sydney is a better bet in July — 6.1 °C warmer, the same number of rain days.

So: July is a compromise. October is 26 points better and is what Katoomba is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Katoomba

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