Port of Spain weather in May

In May, Port of Spain sees average daytime highs of 27°C and overnight lows near 26°C, with 46 mm of rain across 9.8 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 29% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Port of Spain's 8th-clearest and 5th-windiest month. For the whole year in context, see Port of Spain's year-round climate.

Daytime high
27°
4th warmest
Overnight low
26°
9th coldest
Rainfall
46 mm
9.8 wet days
Daylight
12 h 30 min
5:48 AM – 6:17 PM
Cloud cover
62%
8th clearest
Wind
23 km/h
5th windiest
Solar energy
6.26 kWh/m²
Travel score
6.4
out of 10

Port of Spain is capital of Trinidad and Tobago.

Air quality
Moderate
PM2.5 13.4 µg/m³ · 2019
Density
4,086/km²
people per km²
Founded
1560

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 27°C through the month.

A typical May day in Port of Spain reaches about 27°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, May runs on par with April and on par with June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82726
92726
102726
112726
122726
132726
142726
152726
162726
172726
182726
192726
202726
212726
222726
232726
242726
252726
262726
272726
282726
292726
302726
312726

How May really feels in Port of Spain

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Port of Spain weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°4610.911.46.9
Feb26° / 25°216.511.67.4
Mar26° / 25°194.711.97.6
Apr27° / 25°234.912.27.2
May27° / 26°469.812.56.4
Jun27° / 25°10319.212.65.0
Jul27° / 25°12524.212.64.5
Aug28° / 26°13525.112.44.3
Sep28° / 26°10220.812.14.4
Oct28° / 26°11121.811.84.6
Nov27° / 26°12422.611.54.6
Dec27° / 25°841711.45.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24753
34753
44654
54654
64555
74555
84456
94357
104456
114456
124456
134357
144357
154456
164456
174357
184357
194456
204555
214555
224456
234357
244258
254258
264258
274159
284159
294159
304060
314060

Chance of precipitation in May

Any precipitation

Port of Spain gets around 46 mm of rain over 9.8 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 32% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
124
225
325
425
526
626
726
826
926
1026
1126
1226
1326
1426
1527
1628
1729
1830
1931
2032
2134
2235
2337
2438
2540
2642
2743
2845
2946
3048
3149

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11936
21936
31936
41927
51927
61927
71918
81918
91909
101909
1118910
1209010
1308911
1408911
1508812
1608812
1708713
1808713
1908614
2008614
2108614
2208614
2308614
2408614
2508614
2608614
2708614
2808614
2908614
3008713
3108713

Wind in May

Winds average 23 km/h in May.

Across May, daily wind ranges from about 23 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy
3123breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:52 AM to 5:46 AM, and sunset from 6:14 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:526:14
212.45:526:15
312.45:516:15
412.45:516:15
512.45:516:15
612.45:506:15
712.45:506:15
812.45:506:15
912.45:496:16
1012.45:496:16
1112.55:496:16
1212.55:496:16
1312.55:486:16
1412.55:486:17
1512.55:486:17
1612.55:486:17
1712.55:476:17
1812.55:476:17
1912.55:476:18
2012.55:476:18
2112.55:476:18
2212.55:476:18
2312.55:476:19
2412.55:476:19
2512.55:466:19
2612.55:466:19
2712.65:466:20
2812.65:466:20
2912.65:466:20
3012.65:466:20
3112.65:466:21

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.26 kWh/m².

For context, solar energy here swings from a low near 4.93 kWh/m² to a high of 6.52 kWh/m² in April across the year — May's 6.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.0Intense
296.0Intense
306.0Bright
316.0Bright
Planning a trip in May

Hazard calendar for Port of Spain

In seasonPeak

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

Port of Spain's rainy season runs June–December, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Port of Spain?

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

6.4
Sightseeing
5th-best month of the year
6.6
Beach & pool
4th-best month of the year

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

What to pack for Port of Spain in May

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

In May, Port of Spain sees daytime highs around 27°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear and a windbreaker. About 10 days see rain.

light clothessun protectionrain geara windbreaker

Sea temperature near Port of Spain in May

The nearest coast averages about 28°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 29°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Port of Spain in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port of Spain peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 highMar 21UV 14Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Port of Spain 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 Port of Spain is worst in June — around 22 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Port of Spain's WHO annual average of 13.4 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1521 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar13Moderate
Apr16Moderate
May18Moderate
Jun22Moderate
Jul17Moderate
Aug13Moderate
Sep10Good
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Port of Spain?

Port of Spain sits at 10.7°N, 61.5°W, 21 m above sea level, in Trinidad and Tobago. The nearest listed city is Laventille, 3.0 km away.

TunapunaParadiseChaguanasArimaMarabellaSan Fernando

Topography around Port of Spain

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

Within 3 km, the terrain around Port of Spain has significant variations in elevation — a maximum elevation change of 404 m around an average of 54 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 921 m; within 80 km, large variations in elevation — a maximum elevation change of 1,036 m.

The land around Port of Spain is covered by artificial surfaces (46%), trees (25%) and water (23%) within 3 km, water (49%) and trees (31%) within 16 km, and water (70%) and trees (23%) within 80 km.

3 km
404 m
16 km
921 m
80 km
1,036 m
treesgrasslandartificial surfaceswaterwetlandmangroves
May weather nearby: Laventille 3.0 km · Diego Martin 8.0 km · Tunapuna 14 km · Paradise 17 km · Chaguanas 20 km · Arima 26 km · Marabella 41 km · San Fernando 43 km

Trinidad and Tobago travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
115 / 230 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$18,967
2025
Happiness
5.9 / 10
World Happiness, 2025
Safe drinking water
69%
of population, 2024
Homicide rate
40.4
per 100k, 2022
Road deaths
9.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 32%Roman Catholic 22%Hindu 18%other 8%

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 Port of Spain (10.6667°, -61.5189°, elevation 21 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. 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).