worldweather

Weather in San Fernando - 14-day forecast

Detailed weather forecast for San Fernando, Trinidad and Tobago: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in San Fernando
today☁️ 32°💧 1.2 mm
Sun☀️ 34°💧 0.3 mm
Mon☀️ 34°💧 0.2 mm
Tue🌧️ 33°💧 0.1 mm
Wed☁️ 34°💧 1.7 mm
Thu🌧️ 27°💧 13.1 mm
Fri🌧️ 29°💧 15.2 mm
Sat🌧️ 31°💧 1.1 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Sunday 6 Sept in San Fernando, the forecast high is 34°C. Typical daytime temperatures at this time of year range from 29°C to 31°C, so it will be exceptionally warm. It is warmer than 99% of similar days.

32°Cexceptionally warm
usually 29°C–31°C
warmer than 98% of similar days
night: exceptionally warm rain: less rain than usual wind: lighter than usual
34°Cexceptionally warm
usually 29°C–31°C
warmer than 99% of similar days
night: exceptionally warm rain: exceptionally dry wind: lighter than usual
34°Cexceptionally warm
usually 29°C–31°C
warmer than 99% of similar days
night: warmer than usual rain: exceptionally dry wind: lighter than usual
33°Cexceptionally warm
usually 29°C–31°C
warmer than 99% of similar days
night: exceptionally cool rain: exceptionally dry wind: lighter than usual
34°Cexceptionally warm
usually 29°C–31°C
warmer than 99% of similar days
night: exceptionally warm rain: typical rainfall wind: lighter than usual
27°Cexceptionally cool
usually 29°C–31°C
cooler than 99% of similar days
night: exceptionally cool rain: exceptionally wet wind: exceptionally light
29°Cnear normal
usually 29°C–31°C
night: near normal rain: exceptionally wet wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
25°30°35° 1981: 29°C1982: 31°C1983: 31°C1984: 30°C1985: 29°C1986: 30°C1987: 31°C1988: 29°C1989: 31°C1990: 31°C1991: 30°C1992: 30°C1993: 29°C1994: 29°C1995: 31°C1996: 30°C1997: 31°C1998: 30°C1999: 29°C2000: 29°C2001: 30°C2002: 30°C2003: 30°C2004: 30°C2005: 31°C2006: 30°C2007: 29°C2008: 29°C2009: 31°C2010: 29°C2011: 31°C2012: 31°C2013: 30°C2014: 30°C2015: 31°C2016: 30°C2017: 30°C2018: 31°C2019: 31°C2020: 30°C2021: 30°C2022: 29°C2023: 32°C2024: 32°C2025: 30°C 2026 forecast: 32°C current forecast 32°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 30°C by day. The coolest year was 2010 (29°C) and the warmest was 2024 (32°C). The current forecast averages 32°C - higher than in 98% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - San Fernando

San Fernando - 14-day weather forecast infographic

San Fernando 30 & 45-day weather - long-range outlook

Next 15 days · forecast
31°
around 25° at night · days with rain: 12
Weeks 3-4 · avg for September
33°
around 24° at night · rain chance 59%
Weeks 5-7 · avg for October
33°
around 24° at night · rain chance 65%
The 30 & 45-day outlook for San Fernando: the next 15 days are a numerical forecast updated daily - on average 31° by day and 25° at night. Further out we rely on multi-year climate averages: around 33° in September, and about 33° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for San Fernando

Saturday5 September 2026
☁️32°broken clouds
sunrise 05:56 · sunset 18:13 · night 27° · evening 29° · rain 1.18 mm · humidity 50% · wind 5 m/s · clouds 63%
Sunday6 September 2026
☀️34°clear sky
sunrise 05:56 · sunset 18:12 · night 26° · evening 29° · rain 0.28 mm · humidity 48% · wind 5 m/s · clouds 3%
Monday7 September 2026
☀️34°clear sky
sunrise 05:56 · sunset 18:12 · night 26° · evening 28° · rain 0.22 mm · humidity 48% · wind 5 m/s · clouds 4%
Tuesday8 September 2026
🌧️33°light rain
sunrise 05:56 · sunset 18:11 · night 24° · evening 30° · rain 0.12 mm · humidity 52% · wind 5 m/s · clouds 43%
Wednesday9 September 2026
☁️34°broken clouds
sunrise 05:56 · sunset 18:10 · night 26° · evening 27° · rain 1.68 mm · humidity 47% · wind 5 m/s · clouds 63%
Thursday10 September 2026
🌧️27°moderate rain
sunrise 05:56 · sunset 18:10 · night 24° · evening 29° · rain 13.11 mm · humidity 88% · wind 4 m/s · clouds 100%
Friday11 September 2026
🌧️29°moderate rain
sunrise 05:56 · sunset 18:09 · night 25° · evening 29° · rain 15.24 mm · humidity 75% · wind 5 m/s · clouds 97%
Saturday12 September 2026
🌧️31°light rain
sunrise 05:56 · sunset 18:08 · night 25° · evening 29° · rain 1.05 mm · humidity 59% · wind 5 m/s · clouds 51%
Sunday13 September 2026
🌧️32°light rain
sunrise 05:56 · sunset 18:08 · night 26° · evening 28° · rain 4.77 mm · humidity 60% · wind 4 m/s · clouds 47%
Monday14 September 2026
☁️33°overcast clouds
sunrise 05:56 · sunset 18:07 · night 25° · evening 29° · rain 3.63 mm · humidity 56% · wind 5 m/s · clouds 98%
Tuesday15 September 2026
🌧️34°light rain
sunrise 05:56 · sunset 18:06 · night 25° · evening 28° · rain 4.89 mm · humidity 50% · wind 4 m/s · clouds 98%
Wednesday16 September 2026
🌧️26°moderate rain
sunrise 05:55 · sunset 18:06 · night 25° · evening 28° · rain 16.53 mm · humidity 91% · wind 4 m/s · clouds 100%
Thursday17 September 2026
🌧️28°light rain
sunrise 05:55 · sunset 18:05 · night 25° · evening 25° · rain 6.42 mm · humidity 80% · wind 5 m/s · clouds 48%
Friday18 September 2026
🌧️31°light rain
sunrise 05:55 · sunset 18:05 · night 26° · evening 27° · rain 2.88 mm · humidity 60% · wind 5 m/s · clouds 39%
Saturday19 September 2026
🌧️30°light rain
sunrise 05:55 · sunset 18:04 · night 25° · evening 28° · rain 2.34 mm · humidity 70% · wind 5 m/s · clouds 26%

UV index in San Fernando - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTSan Fernando03681111+8.9UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 20 min9Sat5.099Sun6.099Mon7.099Tue8.099Wed9.094Thu10.092Fri11.099Sat12.099Sun13.098Mon14.099Tue15.099Wed16.099Thu17.099Fri18.099Sat19.099Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in San Fernando is 9 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - San Fernando

Water today
31°C
Week avg
31°C
Waves today
0.1 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 31°C6.09 31°C7.09 31°C8.09 31°C9.09 31°C10.09 31°C11.09 30°C12.09 30°C13.09 30°C
Average sea temperature through the year:
Jan 29°CFeb 28°CMar 29°CApr 29°CMay 30°CJun 30°CJul 30°CAug 31°CSep 31°COct 31°CNov 30°CDec 29°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

San Fernando weather through the year

San Fernando - annual climate

Warmest, driest months on average: January, February, March, December.

Nearby and related places

Port-of-SpainArimaSangre GrandeScarborough

FAQ - San Fernando weather

What is the weather like in San Fernando today?
Today it is about 32° during the day and 27° at night, broken clouds.
How far ahead can I check the forecast for San Fernando?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.