San Fernando Temperature by Month

San Fernando, Trinidad, Trinidad & Tobago has a consistently comfortable climate year-round, with daytime highs averaging 30°C (86°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Year-round, San Fernando experiences a consistently comfortable climate. Maximum daytime temperatures range from a very warm 31°C (88°F) in May to a comfortable 29°C (84°F) in the coolest month, January. Nighttime temperatures range from 25°C (77°F) in May to 24°C (75°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in San Fernando by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. May, the warmest month, averages 233 hours of sunshine.

The chart below shows the average temperature throughout the year:

San Fernando's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In San Fernando, January is the coolest month, with average highs of 29°C (84°F) and humidity around 81%, considered very high. In May, the warmest month, temperatures average 31°C (88°F) with 79% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on San Fernando's weather, including monthly rainfall, sunshine hours, and humidity, visit our San Fernando climate page.