Weather in Port of Spain in September 2025
- September is usually the hottest month of the year in Port of Spain;
Average weather
Average temperature in Port of Spain in September
The expected average maximum temperature in September is +90°F with a maximum of +93°F and a minimum of +73°F.
The average maximum temperature goes up 18% by the end of the month, compared with the beginning of the month, from +90°F to +93°F.
Is Port of Spain warm or cold in September?
Port of Spain is typically warm in September.
Maximum temperatures go up compared to the previous month from +82°F to +84°F. The minimum temperature also goes up from +77°F to +77°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is the hottest month in Port of Spain, here is the comparison with other months:
Climate in Port of Spain in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +82°F | +84°F | +82°F | ||||
| Min. temperature | ||||||
| +70°F | +72°F | +68°F | ||||
| Max. temperature | ||||||
| +93°F | +93°F | +93°F | ||||
| Rainfall | ||||||
| 130 mm | 97 mm | 113 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 84% | 83% | 84% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 1 | 3 | 3 | ||||
| Rainy days | ||||||
| 26 | 22 | 24 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting warmer as September arrives. The average maximum temperature goes up from +82°F to +84°F during the day. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 130 mm to 97 mm. It feels drier, as humidity decreases from 84% to 83%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Port of Spain is gradually decreasing during September, going from 2 m/s to 0 m/s over the course of the month.
Rain
How was the weather last September in Port of Spain?
Climate Change Over the Years
The climate in Port of Spain in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1985 (+80°F) and the highest in 2019 (+87°F). The driest year was 1992 with only 595 mm of rainfall, and the wettest year was 2021 with 1632 mm.
FAQ
Is September a good time to visit Port of Spain?
Can you sunbathe in Port of Spain in September?
Is Port of Spain rainy in September?
Is it sunny in Port of Spain in September?
Monthly weather in Port of Spain
Source of the data
For this page, we’ve looked at the typical weather in Port of Spain, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
