Climate and monthly weather forecast
Penal, Trinidad and Tobago

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The climate of Penal

Penal, Trinidad and Tobago, comfortably settles in the category of Am, according to the Köppen climate classification, indicating a Tropical monsoon climate. This type of climate is characterized by high temperatures and heavy rainfall, ample characteristics of the weather conditions throughout the year in Penal.

Studying the climatological parameters provided, the average high temperature fluctuates mildly, from a minimum of 28.2°C (82.8°F) to a maximum of 30.5°C (86.9°F). Simultaneously, the average low temperature registers readings varying from 24.8°C (76.6°F) to 26.5°C (79.7°F). These figures imply a notably consistent temperature range year-round, with minimal deviation.

The patterns seen in Penal's humidity levels, remaining fairly steady from 74% to 78%, support this consistency. Rainfall in Penal follows a more dynamic path, with measurements alternating from a low of 17mm (0.67") to a high of 97mm (3.82"). With a majority of months yielding at least 60mm (2.36") of rain, rainfall is a significant feature of Penal's climate.

Among the notable weather patterns is the higher rainfall during the middle months of the year, contrasted by the lowest rainfall levels recorded between January and April. In terms of pressure, the readings remain slightly fluctuating, typically hovering around the 1013 mb mark.

The best time to visit Penal

Given the patterns in climatological parameters, the period between January and April stands out as the best time to visit Penal. This period boasts slightly lower rainfall, from 17mm (0.67") to 23mm (0.91"), and lower humidity levels, sitting between 74% and 76%. Additionally, the period gets slightly fewer daylight hours, ranging from 11.6h to 12.4h. Nevertheless, with average highest temperatures ranging between 28.2°C (82.8°F) and 29.6°C (85.3°F) and average lowest temps oscillating from 24.8°C (76.6°F) to 25.8°C (78.4°F), the temperatures remain comfortably warm, pleasant for various outdoor activities.

The worst time to visit Penal

Contrastingly, the months of June to September pose challenges due to high rainfall amounts. Rainfall peaks at 97mm (3.82") in August, accompanied by nearly 23 rainy days and the highest humidity level of the year, reaching up to 78%. Meanwhile, the temperatures remain high, with averages floating between 29.7°C (85.5°F) and 30.2°C (86.4°F) for the highest and 26°C (78.8°F) to 26.5°C (79.7°F) for the lowest levels, thus contributing to a markedly humid period.

Spring weather in Penal

Spring weather in Penal is marked by increasing temperatures and rainfall. The average highest temperatures ascend gradually from 28.9°C (84°F) in March to 29.8°C (85.6°F) in May, while the lowest temperatures also follow this upwards trend, moving from 25.2°C (77.4°F) to 26.2°C (79.2°F). Correspondingly, rainfall escalates from 19mm (0.75") in March to 20mm (0.79") in May, accompanied by a slight increase in humidity from 74% to 75%.

Summer weather in Penal

Summers are distinctively warmer and wetter. Average highs peak at 30.5°C (86.9°F) in September, but consistently remain above 29.5°C (85.1°F) between June and August. The lower temperatures range from 26.5°C (79.7°F) in September down to 26°C (78.8°F) in June and July. Rainfall peaks significantly in August with 97mm (3.82"). Humidity remains high, at around 77% to 78%.

Autumn weather in Penal

Autumn in Penal observes declining temperatures and rainfall. High temperatures display a small decrease from 30.4°C (86.7°F) in October to 29.5°C (85.1°F) in November. At the same time, low temperatures also show a slight decline from 26.5°C (79.7°F) in October to 26.1°C (79°F) in November. Rainfall amounts steadily decrease from 82mm (3.23") in October to 63mm (2.48") in November, featuring lowered humidity levels.

Winter weather in Penal

Winters are somewhat drier with slightly cooler temperatures. The highest temperatures descend from 28.7°C (83.7°F) in December to 28.2°C (82.8°F) in January, before rising slightly to 28.9°C (84°F) in February. Similarly, the lowest temperatures register a marginal decline from 25.4°C (77.7°F) in December to 24.8°C (76.6°F) in January, then ascend to 24.7°C (76.5°F) in February. The period witnesses some of the lowest rainfall amounts, down to 17mm (0.67") in April, with decline in humidity down to 74%.

Weather in January

January in Penal, Trinidad and Tobago marks the onset of the New Year with warm temperatures and one of the driest months. These conditions serve as an invitation for outdoor activities and sightseeing. An average high temperature of 28.2°C (82.8°F) and a low of 24.8°C (76.6°F) set the stage for a warm and balmy month. Weather in January »

Weather in February

February ushers in the last month of dry season in Penal, Trinidad and Tobago. The city enjoys fine weather characterized by blue skies, warm days, and cooler nights. Relative humidity falls moderately, and rainfall holds steady at an average of 20mm (0.79") on around 14 rainy days. Weather in February »

Weather in March

The month of March in Penal is yet another warm month, with temperatures still hovering in the upper range. A slight increase in temperature is observed, preparing the inhabitants for the hot season lying ahead. The weather becomes somewhat wetter compared to February with an average rainfall of 19mm (0.75"). Weather in March »

Weather in April

April presents a noticeable shift in Penal’s weather with an increase in both temperature and rainfall. The onset of the wet season is marked by warmer days and frequent showers. The warmest month of the year so far, it has an average high temperature of 29.6°C (85.3°F) and a low of 25.8°C (78.4°F). Weather in April »

Weather in May

May is the month when the wet season takes full hold in Penal, Trinidad and Tobago. The temperature remains steady with a high of 29.8°C (85.6°F) and a low of 26.2°C (79.2°F), giving the city a wonderfully warm climate. Rainfall increases significantly to 63mm (2.48"), indicating the city's shift towards much wetter conditions. Weather in May »

Weather in June

The weather in Penal changes noticeably in June, signaling the peak of the rainy season. The humidity level slightly increases, adding a humid touch to the tropical climate. An average of 86mm (3.39") of rain falls in June, making it one of the rainiest months of the year. Weather in June »

Weather in July

July in Penal brings about the height of summer with days filled with rain and humidity. Even then, it bears witness to the city's highest average temperature of 29.7°C (85.5°F), and despite the high relative humidity of 78%, it offers a cosy tropical climate. Weather in July »

Weather in August

Penal continues to experience high rainfall in August. Though temperature slightly rises up to an average high of 30.2°C (86.4°F), nights are relatively cooler with temperatures dropping to around 26°C (78.8°F). With an average rainfall of 61mm (2.4"), the city's wet season is in full swing. Weather in August »

Weather in September

In Penal, the month of September indicates the gradual decrease of rain. The average high temperature hits its peak at 30.5°C (86.9°F) while evenings are a bit cooler at 26.5°C (79.7°F). Rainfall recedes to a lower average of 82mm (3.23"), hinting at the approaching end of the wet season. Weather in September »

Weather in October

October brings a significant change in weather with rainfall continuing to decrease and average temperatures remaining steady. The average high and low temperatures record 30.4°C (86.7°F) and 26.5°C (79.7°F) respectively with an average of 63mm (2.48") of rain falling throughout the month. Weather in October »

Weather in November

November marks the start of the dry season in Penal, Trinidad and Tobago. The average high and low temperatures drop slightly to 29.5°C (85.1°F) and 26.1°C (79°F) respectively. With decreasing rainfall, at this time, the city experiences just about 48mm (1.89") of rain spread across 16 days. Weather in November »

Weather in December

By December, Penal’s weather has conformed to a warm, dry setting. The average high temperature stands at 28.7°C (83.7°F) and the average low at 25.4°C (77.7°F). The rainfall further falls down to a lower average of 23mm (0.91"). Weather in December »

Frequently asked questions

What are the coldest months in Penal?

In Penal, January registers the lowest temperatures, averaging 28.2°C (82.8°F) at the peak and 24.8°C (76.6°F) at the lowest.

How many days does it rain in Penal?

In Penal, during the entire year, the rain falls for 202.6 days and collects up to 599mm (23.58") of precipitation.

What is the month with the highest UV index in Penal?

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

What are the months with the lowest UV index in Penal?

The months with the lowest UV index in Penal, Trinidad and Tobago, are January through December, with an average maximum UV index of 7.

What is the least humid month in Penal?

The months with the lowest humidity in Penal are March and April, with an average relative humidity of 74%.

What is the driest month in Penal?

The month with the least rainfall in Penal, Trinidad and Tobago, is April, when the rain falls for 11.6 days and typically collects 17mm (0.67") of precipitation.

When are the longest days in Penal?

The month with the longest days in Penal, Trinidad and Tobago, is June, with an average of 12h and 42min of daylight.

What are the most humid months in Penal?

July, November and December, with an average relative humidity of 78%, are most humid months in Penal, Trinidad and Tobago.

What is the rainiest month in Penal?

August is the month with the most rainfall in Penal. Rain falls for 21.9 days and accumulates 97mm (3.82") of precipitation.

What is the month with the most sunshine in Penal?

August and September, with an average of 11.1h of sunshine, are months with the most sunshine in Penal, Trinidad and Tobago.

What is the warmest month in Penal?

September stands out as Penal's warmest month, with temperatures ranging between an average high of 30.5°C (86.9°F) and a low of 26.5°C (79.7°F).

What is the month with the shortest days in Penal?

The month with the shortest days in Penal, Trinidad and Tobago, is December, with an average of 11h and 30min of daylight.

Is there Daylight Saving Time (DST) in Penal?

Penal, Trinidad and Tobago, does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.

What is the month with the least sunshine in Penal?

December has the least sunshine of the year in Penal, Trinidad and Tobago, with an average of 6.7h of sunshine.

Average temperature
Penal, Trinidad and Tobago

Average temperature - Penal, Trinidad and Tobago

The warmest month (with the highest average high temperature) is September (30.5°C).
The month with the lowest average high temperature is January (28.2°C).

The months with the highest average low temperature are September and October (26.5°C).
The coldest month (with the lowest average low temperature) is February (24.7°C).

Average pressure
Penal, Trinidad and Tobago

Average pressure - Penal, Trinidad and Tobago

The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

Average wind speed
Penal, Trinidad and Tobago

Average wind speed - Penal, Trinidad and Tobago

The windiest month (with the highest average wind speed) is May (17km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).

Average humidity
Penal, Trinidad and Tobago

Average humidity - Penal, Trinidad and Tobago

The months with the highest relative humidity are July, November and December (78%).
The months with the lowest relative humidity are March and April (74%).

Average rainfall
Penal, Trinidad and Tobago

Average rainfall - Penal, Trinidad and Tobago

The wettest month (with the highest rainfall) is August (97mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days
Penal, Trinidad and Tobago

Average rainfall days - Penal, Trinidad and Tobago

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is April (11.6 days).

Average daylight / Average sunshine
Penal, Trinidad and Tobago

Average daylight / Average sunshine - Penal, 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 months with the most sunshine are August and September (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days
Penal, Trinidad and Tobago

Average sunshine days - Penal, Trinidad and Tobago

The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is July (5.6 days).

Average UV index
Penal, Trinidad and Tobago

Average UV index - Penal, 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
Penal, Trinidad and Tobago

Average visibility - Penal, 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).

Penal, Trinidad and Tobago

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