Palmerston weather in May

In May, Palmerston sees average daytime highs of 33°C and overnight lows near 21°C, with 15 mm of rain across 2.6 wet days and about 11.4 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 49% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of May to 11 h 18 min by month's end. Set against the rest of the year, May is Palmerston's 4th-clearest and 4th-windiest month. For the whole year in context, see Palmerston's year-round climate.

Daytime high
33°
7th warmest
Overnight low
21°
4th coldest
Rainfall
15 mm
2.6 wet days
Daylight
11 h 24 min
7:00 AM – 6:25 PM
Cloud cover
43%
4th clearest
Wind
9 km/h
4th windiest
Solar energy
5.54 kWh/m²
Travel score
4.3
out of 10

Palmerston is planned satellite city of Darwin, in the Northern Territory, Australia.

Air quality
Good
PM2.5 9.8 µg/m³ · 2019
Density
637/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Palmerston reaches about 33°C in the afternoon and slips back to 21°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13422
23322
33322
43322
53322
63322
73322
83322
93322
103322
113322
123322
133321
143321
153321
163321
173321
183321
193321
203321
213321
223321
233321
243321
253321
263321
273221
283220
293220
303220
313220

How May really feels in Palmerston

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Palmerston weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 25°43928.312.72.2
Feb32° / 25°39325.912.42.3
Mar33° / 25°30423.712.12.5
Apr33° / 23°1009.511.73.3
May33° / 21°152.611.44.3
Jun32° / 19°20.411.35.3
Jul32° / 18°10.211.35.3
Aug33° / 19°10.211.64.5
Sep35° / 22°122.711.93.1
Oct35° / 24°589.312.32.4
Nov35° / 25°17519.312.62.1
Dec33° / 25°33225.312.72.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46436
56436
66436
76436
86535
96535
106634
116733
126832
136931
147030
157030
167030
177228
187228
197228
207327
217327
227327
237426
247426
257327
267327
277327
287228
297228
307228
317228

Chance of precipitation in May

Any precipitation

Palmerston gets around 15 mm of rain over 2.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 8% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
211
310
49
59
69
78
88
98
108
118
128
138
148
159
169
179
189
199
209
219
228
238
248
258
267
277
286
296
305
315

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 54% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1671638294
2681738283
3781738273
4891838252
5991838252
61091838242
710101837231
811101837231
912101836221
1013101936221
1113101935221
1214101934231
1315101932231
1415101931231
1516111930241
1616111929241
1716111929241
1817111928241
1917111927241
2018121926241
2118122026231
2219122026221
2320122026211
2421122026201
2522122026191
2623122126171
2724122127161
2825132127141
2925132127130
3026132127120
3127132128110

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 36 min at the start of May to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 6:56 AM to 7:04 AM, and sunset from 6:30 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:566:30
211.66:576:30
311.56:576:29
411.56:576:29
511.56:576:28
611.56:576:28
711.56:576:28
811.56:586:27
911.56:586:27
1011.56:586:27
1111.56:586:26
1211.56:596:26
1311.56:596:26
1411.46:596:26
1511.46:596:25
1611.47:006:25
1711.47:006:25
1811.47:006:25
1911.47:006:24
2011.47:016:24
2111.47:016:24
2211.47:016:24
2311.47:016:24
2411.47:026:24
2511.47:026:24
2611.47:026:24
2711.37:036:23
2811.37:036:23
2911.37:036:23
3011.37:036:23
3111.37:046:23

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.54 kWh/m².

For context, solar energy here swings from a low near 5.31 kWh/m² to a high of 6.88 kWh/m² in October across the year — May's 5.54 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in May

Hazard calendar for Palmerston

In seasonPeak

None of Palmerston's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Palmerston sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Palmerston's monsoon runs December–March, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Palmerston?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.3
Sightseeing
4th-best month of the year
7.5
Beach & pool
4th-best month of the year

May is a reasonable time to visit Palmerston for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Palmerston in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Palmerston sees daytime highs around 33°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Palmerston in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in December at about 31°C and coldest in July near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan30Tropical
Feb30Tropical
Mar30Tropical
Apr30Tropical
May29Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep28Warm
Oct30Tropical
Nov31Tropical
Dec31Tropical

UV index in Palmerston in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Palmerston peaks around February 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 20UV 16Jun 18UV 9
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Air quality in Palmerston in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Palmerston is worst in May — around 19 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (March, 6 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Palmerston's WHO annual average of 9.8 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1918 µg/m³Mar 126 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr8Good
May19Moderate
Jun14Moderate
Jul15Moderate
Aug15Moderate
Sep9Good
Oct7Good
Nov7Good
Dec6Good
Location & terrain

Where is Palmerston?

Palmerston sits at 12.5°S, 131.0°E, 36 m above sea level, in Australia. The nearest listed city is Darwin, 16 km away.

SuaiAileuAtsabe

Topography around Palmerston

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Palmerston.

Within 3 km, the terrain around Palmerston has only modest variations in elevation — a maximum elevation change of 47 m around an average of 25 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 57 m; within 80 km, only modest variations in elevation — a maximum elevation change of 229 m.

The land around Palmerston is covered by trees (47%) and artificial surfaces (35%) within 3 km, trees (49%) within 16 km, and trees (40%) and water (39%) within 80 km.

3 km
47 m
16 km
57 m
80 km
229 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Darwin 16 km · Lospalos 620 km · Venilale 660 km · Baucau 666 km · Suai 718 km · Aileu 725 km · Atsabe 727 km · Dili 735 km

Australia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 90% of US
price level, 2025
GDP per capita
$65,130
2025
Happiness
6.9 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2023
Road deaths
4.9
per 100k/yr, 2019
Income group
High
World Bank
Religion
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Palmerston (-12.486°, 130.9833°, elevation 36 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).