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Australia · 1991–2020

Best time to visit
Palmerston.

July leads for comfortable weather in Palmerston: typically 31.1°C by day, 19.3°C at night, with 1 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high31.1°C

Typical low19.3°C

Rain in July1 mm

Comfort

July

July · June · August

69climate match

Beach

June

June · July · August

91climate match

Outdoors

July

July · June · August

50climate match

The weakest month is January, scoring 5 against July’s 69 — 471 mm of rain falls.

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

531.9° / 25.1°

Feb

531.7° / 25°

Mar

532.3° / 24.9°

Apr

4033° / 24.2°

May

6032.3° / 22.3°

Jun

6831.1° / 20°

Jul

6931.1° / 19.3°

Aug

6531.9° / 19.8°

Sep

5633.1° / 22.9°

Oct

4333.8° / 24.8°

Nov

2833.7° / 25.4°

Dec

733° / 25.5°

Monthly climate evidence for Palmerston — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 17 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	31.9°C	25.1°C	471 mm	19.6	30.3°C	12 h 47	5	Strong coverage
February	31.7°C	25°C	412 mm	18.2	29.9°C	12 h 31	5	Strong coverage
March	32.3°C	24.9°C	314 mm	16.8	29.9°C	12 h 12	5	Strong coverage
April	33°C	24.2°C	105 mm	7.6	29.9°C	11 h 50	40	Strong coverage
May	32.3°C	22.3°C	21 mm	1.7	28.7°C	11 h 33	60	Strong coverage
June	31.1°C	20°C	2 mm	0.2	26.8°C	11 h 24	68	Strong coverage
July	31.1°C	19.3°C	1 mm	0.1	25.8°C	11 h 27	69	Strong coverage
August	31.9°C	19.8°C	1 mm	0.2	26.2°C	11 h 42	65	Strong coverage
September	33.1°C	22.9°C	14 mm	1.5	27.9°C	12 h 03	56	Strong coverage
October	33.8°C	24.8°C	69 mm	5.5	29.6°C	12 h 24	43	Strong coverage
November	33.7°C	25.4°C	144 mm	10.1	30.7°C	12 h 42	28	Strong coverage
December	33°C	25.5°C	279 mm	15	30.8°C	12 h 51	7	Strong coverage

What has changed

Palmerston runs +0.7°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.4

Feb

+0.7

Mar

+0.8

Apr

+0.3

May

+0.3

Jun

+0.9

Jul

+1.0

Aug

+1.1

Sep

+1.0

Oct

+0.8

Nov

+0.7

Dec

+0.7

July daytime highs, 2011–2025. Last recorded: 31.7°C.

Records at DARWIN AIRPORT, 1941–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	36.1°C7 Jan 2014	20.2°C23 Jan 1985	290 mm3 Jan 1997	940 mm1995 · driest 136 mm in 1965	85
February	36.0°C20 Feb 1972	17.2°C25 Feb 1949	368 mm16 Feb 2011	1110 mm2011 · driest 103 mm in 1959	86
March	36.0°C13 Mar 1942	19.2°C31 Mar 1945	241 mm16 Mar 1977	1014 mm1977 · driest 88 mm in 1978	85
April	36.7°C16 Apr 2003	17.6°C14 Apr 1948	143 mm4 Apr 1959	396 mm2006 · driest 1 mm in 1997	85
May	36.0°C2 May 1942	13.8°C27 May 1990	90 mm18 May 1987	299 mm1968 · driest 0 mm in 1948	85
June	35.0°C15 Jun 2020	12.1°C23 Jun 1963	47 mm2 Jun 2004	51 mm2004 · driest 0 mm in 2025	86
July	35.0°C11 Jul 2020	10.4°C29 Jul 1942	19 mm17 Jul 2001	27 mm2001 · driest 0 mm in 1971	86
August	36.8°C30 Aug 1971	13.0°C23 Aug 2014	80 mm22 Aug 1947	84 mm1947 · driest 0 mm in 1978	85
September	38.0°C21 Sep 2021	14.3°C1 Sep 2006	71 mm21 Sep 1942	130 mm1981 · driest 0 mm in 1962	85
October	38.9°C18 Oct 1982	19.0°C2 Oct 1982	119 mm8 Oct 2020	339 mm1954 · driest 0 mm in 1953	85
November	37.3°C28 Nov 2004	19.3°C4 Nov 1950	169 mm23 Nov 2025	446 mm2025 · driest 17 mm in 1976	85
December	37.1°C9 Dec 2019	19.8°C4 Dec 1974	277 mm25 Dec 1974	665 mm1974 · driest 19 mm in 1991	85

Typical days per month at DARWIN AIRPORT, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	31	27	11
February	28	24	10
March	31	28	9
April	30	29	3
May	31	29	<1
June	30	24	0
July	31	25	0
August	31	29	0
September	30	30	<1
October	31	31	2
November	30	30	4
December	31	29	7

How often, not how much — every day in DARWIN AIRPORT’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	39%	61%	36%	85%	31.0–32.7°C
February	37%	63%	35%	84%	30.4–32.6°C
March	46%	54%	28%	69%	30.9–33.2°C
April	76%	24%	10%	24%	31.8–33.8°C
May	95%	5%	2%	3%	30.9–33.0°C
June	99%	<1%	<1%	<1%	29.5–31.9°C
July	99%	<1%	0%	0%	29.6–31.8°C
August	99%	1%	<1%	<1%	30.5–32.7°C
September	95%	5%	2%	3%	31.8–33.7°C
October	84%	16%	7%	19%	32.7–34.3°C
November	66%	34%	15%	45%	32.6–34.3°C
December	54%	46%	22%	65%	31.6–33.8°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.

1942Each stripe is one year’s mean temperature against the 82-year average. Warmest: 2016. Coolest: 1943.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6301965
NOAA station: ASN00014015 · DARWIN AIRPORT
Station distance: 12 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude -12.49°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 17 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 DARWIN AIRPORT is what differs

Howard Springs→Karama→Leanyer→Rosebery→Durack→Gray→

Or put two places side by side: Palmerston vs Howard Springs

Best time to visitPalmerston.

July

June

July

The whole year,without the guesswork.

Palmerston runs +0.7°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Palmerston.

The whole year,
without the guesswork.

Palmerston runs +0.7°C
on the 1961–1990 baseline.

Nearby, measured,
and named.