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Australia · 1991–2020

Best time to visit
Karratha.

June leads for comfortable weather in Karratha: typically 26.6°C by day, 15.2°C at night, with 44 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high26.6°C

Typical low15.2°C

Rain in June44 mm

Comfort

June

June · July · August

90climate match

Beach

May

May · October · September

89climate match

Outdoors

July

July · June · August

73climate match

The weakest month is February, scoring 31 against June’s 90 — days average 35.7°C, 12° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

3636° / 26.9°

Feb

3135.7° / 26.8°

Mar

3736.3° / 26°

Apr

5134.5° / 23°

May

7430.1° / 18.3°

Jun

9026.6° / 15.2°

Jul

9026.4° / 13.9°

Aug

8528.3° / 14.3°

Sep

7331° / 17.1°

Oct

5634.1° / 20.9°

Nov

4935.1° / 23.2°

Dec

4135.9° / 25.7°

Monthly climate evidence for Karratha — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 13 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	36°C	26.9°C	57 mm	3.5	29.0°C	13 h 16	36	Strong coverage
February	35.7°C	26.8°C	95 mm	4.2	29.5°C	12 h 49	31	Strong coverage
March	36.3°C	26°C	52 mm	3.2	29.9°C	12 h 16	37	Strong coverage
April	34.5°C	23°C	16 mm	1.5	29.0°C	11 h 39	51	Strong coverage
May	30.1°C	18.3°C	29 mm	2.1	26.7°C	11 h 09	74	Strong coverage
June	26.6°C	15.2°C	44 mm	2.4	24.2°C	10 h 53	90	Strong coverage
July	26.4°C	13.9°C	13 mm	1	22.9°C	10 h 59	90	Strong coverage
August	28.3°C	14.3°C	3 mm	0.5	22.6°C	11 h 24	85	Strong coverage
September	31°C	17.1°C	1 mm	0.2	23.6°C	12 h 00	73	Strong coverage
October	34.1°C	20.9°C	0 mm	0	25.2°C	12 h 36	56	Strong coverage
November	35.1°C	23.2°C	2 mm	0.1	26.6°C	13 h 08	49	Strong coverage
December	35.9°C	25.7°C	17 mm	1	27.8°C	13 h 23	41	Strong coverage

Records at KARRATHA AERO, 1993–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	48.4°C13 Jan 2022	20.5°C4 Jan 2007	274 mm20 Jan 2025	394 mm2025 · driest 0 mm in 2022	33
February	47.7°C18 Feb 1998	19.4°C13 Feb 2013	211 mm9 Feb 2017	349 mm2011 · driest 0 mm in 2005	33
March	45.8°C1 Mar 2005	18.5°C27 Mar 2001	191 mm2 Mar 2004	291 mm2004 · driest 0 mm in 2013	33
April	41.3°C5 Apr 2005	14.7°C29 Apr 2006	58 mm9 Apr 1995	95 mm2006 · driest 0 mm in 2010	33
May	38.3°C6 May 2019	10.5°C30 May 2023	107 mm6 May 2014	215 mm2022 · driest 0 mm in 2017	33
June	32.8°C18 Jun 2010	7.1°C15 Jun 2006	209 mm25 Jun 2013	272 mm2013 · driest 0 mm in 2015	33
July	34.0°C28 Jul 2017	6.9°C19 Jul 2006	67 mm11 Jul 2005	71 mm2005 · driest 0 mm in 2021	33
August	39.1°C29 Aug 2020	8.0°C3 Aug 2018	27 mm2 Aug 2024	48 mm2024 · driest 0 mm in 2018	33
September	40.7°C30 Sep 2006	10.0°C1 Sep 2004	15 mm15 Sep 2010	21 mm2010 · driest 0 mm in 2003	33
October	44.7°C22 Oct 2002	11.1°C1 Oct 2009	6 mm27 Oct 2013	6 mm2013 · driest 0 mm in 2004	33
November	44.8°C5 Nov 2013	16.0°C10 Nov 1995	38 mm2 Nov 2011	38 mm2011 · driest 0 mm in 1998	33
December	46.9°C28 Dec 1996	18.7°C12 Dec 2008	113 mm31 Dec 2013	113 mm2013 · driest 0 mm in 2022	33

Typical days per month at KARRATHA AERO, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	30	30	1
February	27	27	2
March	31	30	1
April	29	28	<1
May	30	16	<1
June	23	2	1
July	23	2	<1
August	28	6	0
September	29	18	0
October	30	26	0
November	29	28	0
December	30	30	<1

How often, not how much — every day in KARRATHA AERO’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	89%	11%	4%	10%	34.6–37.4°C
February	85%	15%	7%	15%	33.7–37.7°C
March	89%	11%	4%	9%	34.8–37.8°C
April	95%	4%	2%	3%	33.1–36.2°C
May	94%	7%	3%	5%	28.4–31.4°C
June	92%	7%	4%	5%	25.3–28.0°C
July	97%	4%	1%	1%	25.6–27.6°C
August	99%	2%	<1%	<1%	27.0–29.7°C
September	99%	1%	<1%	<1%	29.5–32.5°C
October	100%	<1%	0%	0%	31.7–36.2°C
November	100%	<1%	<1%	<1%	33.3–36.9°C
December	97%	3%	1%	2%	34.7–38.5°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1994Each stripe is one year’s mean temperature against the 32-year average. Warmest: 2019. Coolest: 1995.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6620339
NOAA station: ASN00004083 · KARRATHA AERO
Station distance: 8.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude -20.74°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 13 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from KARRATHA AERO is what differs

Nickol→Baynton→Bulgarra→Pegs Creek→Millars Well→Karratha Industrial Estate→

Or put two places side by side: Karratha vs Nickol

Best time to visitKarratha.

June

May

July

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Karratha.

The whole year,
without the guesswork.

Nearby, measured,
and named.