Climate and monthly weather forecast
Piarco, Trinidad and Tobago

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The climate of Piarco

Located in the tropical zone of Trinidad and Tobago, Piarco experiences a tropical monsoon climate, according to the Köppen climate classification. The area receives a relatively high amount of rainfall, which becomes significant during mid-year months, and has high, consistent temperatures year-round.

Throughout the year, Piarco sees average high temperatures oscillating between 27.9°C (82.2°F) and 30.1°C (86.2°F), while the low temperatures rarely drop below 24.8°C (76.6°F), hitting a peak of 26.6°C (79.9°F). The uniformity of temperatures is a defining characteristic of its tropical climate.

Relative humidity remains relatively constant throughout the year, staying within the range from 75% to 79%. There is a noticeable spike in rainfall from June to November, with the highest figures recorded in August and October, receiving a substantial 110mm (4.33") and 115mm (4.53") respectively.

In contrast, the period from January to April is drier, with rainfall below 20mm (0.79"). This can be correlated to the prevailing wind conditions that tend to be relatively steady throughout the year, averaging between 13.6km/h (8.5mph) and 18.3km/h (11.4mph).

The best time to visit Piarco

Considering the climatic conditions, the best time for a visit to Piarco is during the dry season, especially from January to April. During these months, the rainfall is at its lowest, averaging 17mm (0.67") to 23mm (0.91"), which allows for optimal outdoor exploration and enjoyment of the area’s beauty. The weather remains warm with average temperatures ranging from 27.9°C (82.2°F) to 29.1°C (84.4°F). Significantly, the hours of sunshine are more generous as compared to other months, ensuring sunny weather and clear days.

The worst time to visit Piarco

The wettest period in Piarco extends from June to November. The abundant rainfall, reaching peaks of 110mm (4.33") and 115mm (4.53") in August and October respectively, makes it a less favorable time for visitation. The frequent downpours may restrict outdoor activities and create transportation difficulties. The humidity also peaks during these months, making the climate more uncomfortable compared to the other parts of the year.

Spring weather in Piarco

In Piarco, the spring season extends from March to May. During this period, temperatures remain relatively constant, averaging from 28.4°C (83.1°F) to 29.4°C (84.9°F). March and April are relatively dry months, with rainfall volumes of 16mm (0.63") and 17mm (0.67") respectively, but they gradually start to increase in May, reaching 22mm (0.87"). The lighter spring rainfall, coupled with an approximately 12.4 hours average daylight, provides favorable conditions for outdoor activities.

Summer weather in Piarco

Summer in Piarco, extending from June to August, is characterized by higher rainfall totals. June sees the start of the wet season, with rainfall levels escalating to 72mm (2.83") in July and peaking at a striking 110mm (4.33") rain level in August. Temperature remains consistent with a high of 29.7°C (85.5°F) in August and lows around 25.6°C (78.1°F) to 26°C (78.8°F). Despite the rainfall, this period still offers a decent amount of sunshine, averaging about 10.2 to 11.1 hours a day.

Autumn weather in Piarco

The autumn season from September to November continues to witness increased rainfall, peaking at 115mm (4.53") in October and only slightly decreasing to 81mm (3.19") in November. Meanwhile, temperatures remain firmly in the tropical range from 29.7°C (85.5°F) to 29.1°C (84.4°F). Days are a bit shorter than in summer, with daylight hours ranging from 12.2 hours in September to 11.6 hours in November.

Winter weather in Piarco

Winter in Piarco, from December to February, is comparatively drier and a bit cooler. Rainfall levels significantly decrease to values between 23mm (0.91") and 44mm (1.73"), which is relatively low compared to the preceding months. The average high temperature drops slightly to 27.9°C (82.2°F) in December and increases gradually to reach 28.4°C (83.1°F) by February. The amount of sunshine during this period averages between 6.7 hours and 8.3 hours, providing ample opportunities to enjoy the outdoors.

Weather in January

Kicking off the year, January, in Piarco, Trinidad and Tobago, often has consistently high relative humidity at 77% which is neither the lowest nor the highest throughout the year. Accompanied by moderate rainfall, expect wet conditions to be a prevalent characteristic of the month. Weather in January »

Weather in February

February shows a slight reduction in rainfall and fewer rainy days bearing an almost similar pattern as January. Conditions become a little drier, accompanied by slightly higher temperature ranges. The sun often stays out for longer each day, with an increase in sunshine hours slightly shifting from the trends of January. Weather in February »

Weather in March

Distinct weather changes are not prominent in March. Moderately low rainfall and consistent temperature conditions dominate the weather pattern, similar to its predecessor month. There is an increase in the duration of daylight, allowing more sunlight into the day. Weather in March »

Weather in April

Piarco experiences a notable upward trend in weather elements in April. April not only sees a rise in the lowest temperature but also has a remarkable increase in rainfall, 17mm (0.67") compared to March's 16mm (0.63"). There is an elongation in the duration of daylight matching the month's overall warm theme. Weather in April »

Weather in May

May continues the warming trend with increased average temperatures characterizing this period. Rainfall also significantly escalates, paving the way for a wetter environment as compared to April. The city sees longer daylight hours, compensating for the increased cloud cover and creating a perfect balance in the local atmosphere. Weather in May »

Weather in June

June is a transition period in Piarco's weather, characterized by a mix of sunny and rainy days. The month sees a peak in the relative humidity scaling up to 78%, the highest in the first half of the year. The wind, however, slows down, marking the calm before the tropical storm season. Weather in June »

Weather in July

July presents a dynamic weather situation in Piarco. This is the month with the most rainfall days (20.4 days) and relative humidity peaks at 79%, the maximum value for the year. Despite the widespread presence of clouds, the average hours of daylight remain at 12.7 hours. Weather in July »

Weather in August

Despite being in the latter half of the year, August brings an increase in the highest temperature, reaching 29.7°C (85.5°F). In tandem with the temperature, August also features the highest rainfall volume of 110mm (4.33"), marking the peak of the rainy season. Weather in August »

Weather in September

As the year starts winding down, Piarco's weather in September notes a slight decline in rainfall. This brings relief from the heavy rainfall experienced in August and hints towards a dry season. The highest and lowest temperatures for the month offer warm conditions amidst an overall cooling trend. Weather in September »

Weather in October

October carries the baton from September, continuing the downward rainfall trend, yet it becomes one of the record-holding months with 115mm (4.53") precipitation. There is a significant dip in the average wind speed rights when the quantity of cloud cover escalates. Weather in October »

Weather in November

November in Piarco, Trinidad and Tobago ultimately sees less rainfall, and the number of sunshine days increases. November sets the course towards calmer weather conditions with a decrease in temperature range on the horizon. Wind speeds pick up slightly from October's calm state, adding some variability and stirring up the otherwise tranquil conditions. Weather in November »

Weather in December

December rings the curtain down on the year, bringing with it a further decrease in rain and offering a drier climate. The month shows a declining trend in temperature, bringing cooler nights. Daylight hours continue to decrease, making December the month with the least hours of daylight. Weather in December »

Frequently asked questions

What is the coldest month?

The month of January sees the average lowest temperatures, reaching 27.9°C (82.2°F) at the peak and 24.8°C (76.6°F) at the low.

How many days does it rain?

Throughout the year, there are 194.8 rainfall days, and 640mm (25.2") of precipitation is accumulated.

When is the highest UV index in Piarco?

January through December, with an average maximum UV index of 7, are months with the highest UV index.

When is the lowest UV index in Piarco?

The months with the lowest UV index in Piarco are January through December, with an average maximum UV index of 7.

What is the least humid month?

The months with the lowest humidity are February through April, with an average relative humidity of 75%.

What is the driest month?

February is the month with the least rainfall. Rain falls for 10.3 days and accumulates 14mm (0.55") of precipitation.

When are the longest days?

With an average of 12h and 42min of daylight, June has the longest days of the year.

What is the most humid month?

July is the most humid month, with an average relative humidity of 79%.

What month has the most sunshine?

With an average of 11.1h of sunshine, August has the most sunshine of the year.

What is the warmest month?

The warmest temperatures in Piarco occur during September, when averages reach a peak of 30.1°C (86.2°F) and a low of 26.5°C (79.7°F).

What is the rainiest month?

The month with the most rainfall is October, when the rain falls for 20 days and typically aggregates up to 115mm (4.53") of precipitation.

What is the month with the shortest days?

December has the shortest days of the year in Piarco, with an average of 11h and 30min of daylight.

Is there Daylight Saving Time (DST)?

Piarco does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.

What is the month with the least sunshine in Piarco?

December has the least sunshine of the year in Piarco, with an average of 6.7h of sunshine.

Average temperature
Piarco, Trinidad and Tobago

Average temperature - Piarco, Trinidad and Tobago

The warmest month (with the highest average high temperature) is September (30.1°C).
The month with the lowest average high temperature is January (27.9°C).

The month with the highest average low temperature is October (26.6°C).
The coldest months (with the lowest average low temperature) are January and February (24.8°C).

Average pressure
Piarco, Trinidad and Tobago

Average pressure - Piarco, Trinidad and Tobago

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).

Average wind speed
Piarco, Trinidad and Tobago

Average wind speed - Piarco, Trinidad and Tobago

The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is August (13.6km/h).

Average humidity
Piarco, Trinidad and Tobago

Average humidity - Piarco, Trinidad and Tobago

The month with the highest relative humidity is July (79%).
The months with the lowest relative humidity are February, March and April (75%).

Average rainfall
Piarco, Trinidad and Tobago

Average rainfall - Piarco, Trinidad and Tobago

The wettest month (with the highest rainfall) is October (115mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days
Piarco, Trinidad and Tobago

Average rainfall days - Piarco, Trinidad and Tobago

The month with the highest number of rainy days is August (22.2 days).
The months with the least rainy days are February and April (10.3 days).

Average daylight / Average sunshine
Piarco, Trinidad and Tobago

Average daylight / Average sunshine - Piarco, Trinidad and Tobago

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days
Piarco, Trinidad and Tobago

Average sunshine days - Piarco, Trinidad and Tobago

The months with the most sunshine days are March and April (15.9 days).
The month with the least sunshine days is August (6.8 days).

Average UV index
Piarco, Trinidad and Tobago

Average UV index - Piarco, Trinidad and Tobago

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average visibility
Piarco, Trinidad and Tobago

Average visibility - Piarco, Trinidad and Tobago

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Piarco, Trinidad and Tobago

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