September weather forecast
Tobago, Trinidad and Tobago

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A beautiful white sandy beach with calm, clear waters in the Caribbean islands in Trinidad and Tobago
A beautiful white sandy beach with calm, clear waters in the Caribbean islands in Trinidad and Tobago

Weather in September

Tobago's weather in September remains largely unchanged from August, with a monumental 181mm (7.13") rainfall. The tropical island enjoys bountiful rain showers that layer the island with lush greenery. The rains of September begin to retreat slowly, hinting at a nearing end to the rainy season. Notably, sea conditions remain steady, making September a great period to capture Tobago's undisturbed sea beauty. As Tobago inches towards the end of the 'wet' season, September serves a captivating view of the island's rich biodiversity.

Temperature

A negligible change is observed in Tobago's average high-temperature at the start of September, equating it to August's temperature. During the month of September, an average temperature of 23°C (73.4°F) is noted during the nights in Tobago.

Rainfall

In Tobago, Trinidad and Tobago, in September, it is raining for 18 days, with typically 181mm (7.13") of accumulated precipitation. Throughout the year, in Tobago, Trinidad and Tobago, there are 200 rainfall days, and 1635mm (64.37") of precipitation is accumulated.

Sea temperature

September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Tobago.
Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In September, the average length of the day in Tobago is 12h and 11min.
On the first day of September, sunrise is at 05:52 and sunset at 18:12. On the last day of the month, sunrise is at 05:51 and sunset at 17:53 AST.

Sunshine

The months with the least sunshine in Tobago are June, September through December, with an average of 7h of sunshine.

UV index

The months with the highest UV index in Tobago are February through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a daily UV index of 12 turns into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Even on overcast days, apply and frequently reapply a sunscreen with SPF 30 or more, specifically after a swim or outdoor workout. Alert! Sand and water increase UV exposure due to their reflective properties.
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Frequently asked questions

Is it hot in Tobago during September?

An average high-temperature, in September, in Tobago, is 30°C (86°F) and the average low-temperature is 23°C (73.4°F).

How many days does it rain in September in Tobago?

In Tobago, during September, the rain falls for 18 days and regularly aggregates up to 181mm (7.13") of precipitation.

What months are the sea warmest in Tobago?

The months with the warmest seawater are September and October, with an average sea temperature of 29°C (84.2°F).

What is the water temperature in September in Tobago?

In September, the average sea temperature in Tobago is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Tobago have in September?

In Tobago, Trinidad and Tobago, the average day length in September is 12h and 11min.

When is the sunrise / sunset in September in Tobago?

On the first day of September in Tobago, sunrise is at 05:52 and sunset at 18:12. On the last day of the month, sunrise is at 05:51 and sunset at 17:53 AST.

What is the month with the least sunshine in Tobago?

June, September through December, with an average of 7h of sunshine, are months with the least sunshine in Tobago, Trinidad and Tobago.

How many hours of sunshine does Tobago have in September?

In Tobago, Trinidad and Tobago, the average sunshine duration in September is 7h.

What are the months with the highest UV index in Tobago?

February through September, with an average maximum UV index of 12, are months with the highest UV index in Tobago.

How high is the UV index in September in Tobago?

In Tobago, Trinidad and Tobago, the average daily maximum UV index in September is 12. A UV Index reading of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation.
Average high temperature
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Tobago, Trinidad and Tobago

Average temperature in September - Tobago, Trinidad and Tobago
  • Average high temperature in September: 30°C

The warmest month (with the highest average high temperature) is May (31°C).
The months with the lowest average high temperature are January, February and December (29°C).

  • Average low temperature in September: 23°C

The month with the highest average low temperature is May (24°C).
The coldest month (with the lowest average low temperature) is February (21°C).

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Average rainfall in September
Tobago, Trinidad and Tobago

Average rainfall in September - Tobago, Trinidad and Tobago
  • Average rainfall in September: 181mm

The wettest month (with the highest rainfall) is October (230mm).
The driest month (with the least rainfall) is March (49mm).

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Average rainfall days in September
Tobago, Trinidad and Tobago

Average rainfall days in September - Tobago, Trinidad and Tobago
  • Average rainfall days in September: 18 days

The months with the highest number of rainy days are July and November (23 days).
The month with the least rainy days is April (7 days).

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Average sea temperature in September
Tobago, Trinidad and Tobago

Average sea temperature in September - Tobago, Trinidad and Tobago
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (27°C).

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Average daylight in September /
Average sunshine in September
Tobago, Trinidad and Tobago

Average daylight in September / Average sunshine in September - Tobago, Trinidad and Tobago
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 7h

The months with the most sunshine are January, February, March, April, May, July and August (Average sunshine: 8h).
The months with the least sunshine are June, September, October, November and December (Average sunshine: 7h).

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Average UV index in September
Tobago, Trinidad and Tobago

Average UV index in September - Tobago, Trinidad and Tobago
  • Average UV index in September: 12

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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Tobago, Trinidad and Tobago

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