Mon Repos in Fall
In fall (September, October and November), Mon Repos sees average daytime highs around 29°C and overnight lows near 25°C, with 398 mm of rain over about 69 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 18% of the time across fall, and the air most often feels miserable.
Fall is Mon Repos's 3rd-best season to visit on our travel score. Mon Repos has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Mon Repos's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 398 mm
- 69 wet days
- Avg wind
- 14 km/h
- Travel score
- 3.9
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Mon Repos in Fall
Across fall, daytime highs hold fairly steady around 29°C.
A typical fall day in Mon Repos reaches about 29°C and drops to 25°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Mon Repos
Once humidity and wind are folded in, fall brings about 77 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mon Repos weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 24° | 39 | 9.1 | 11.5 | 6.7 |
| Feb | 28° / 24° | 18 | 5.4 | 11.7 | 7.0 |
| Mar | 28° / 24° | 22 | 5 | 11.9 | 6.5 |
| Apr | 29° / 25° | 28 | 6 | 12.2 | 5.9 |
| May | 29° / 25° | 61 | 12.3 | 12.5 | 5.1 |
| Jun | 28° / 25° | 138 | 21.8 | 12.6 | 4.1 |
| Jul | 28° / 25° | 152 | 26.3 | 12.5 | 3.7 |
| Aug | 29° / 25° | 165 | 26.5 | 12.3 | 3.6 |
| Sep | 29° / 26° | 123 | 22.4 | 12.1 | 3.8 |
| Oct | 29° / 25° | 132 | 23.1 | 11.8 | 3.9 |
| Nov | 28° / 25° | 144 | 23.7 | 11.5 | 4.0 |
| Dec | 28° / 24° | 89 | 17 | 11.4 | 5.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 18% of the time across fall.
Chance of precipitation in Fall
Mon Repos gets around 398 mm of rain over 69 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 14 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.3 kWh/m².
Hazard calendar for Mon Repos
In fall, Mon Repos overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Mon Repos's rainy season runs June–December, when most of the year's rain falls.
Is fall a good time to visit Mon Repos?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Mon Repos.
What to pack for Mon Repos in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Mon Repos sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 69 days see rain.
Sea temperature near Mon Repos in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in September at about 29°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in Mon Repos in Fall
Clear-sky midday UV across fall averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mon Repos peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 13 | 14 | 14 | 13 | 11 | 11 | 11 | 13 | 12 | 10 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 13 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Very high |
| Dec | 9 | Very high |
Air quality in Mon Repos in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Mon Repos is worst in June — around 31 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 14 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 15 | 18 | 19 | 23 | 26 | 31 | 24 | 18 | 15 | 17 | 14 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 18 | Moderate |
| Mar | 19 | Moderate |
| Apr | 23 | Moderate |
| May | 26 | Moderate |
| Jun | 31 | Moderate |
| Jul | 24 | Moderate |
| Aug | 18 | Moderate |
| Sep | 15 | Moderate |
| Oct | 17 | Moderate |
| Nov | 14 | Moderate |
| Dec | 15 | Moderate |
Where is Mon Repos?
Mon Repos sits at 10.3°N, 61.4°W, 37 m above sea level, in Trinidad and Tobago. The nearest listed city is San Fernando, 2.0 km away.
Topography around Mon Repos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mon Repos.
Within 3 km, the terrain around Mon Repos has only modest variations in elevation — a maximum elevation change of 156 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 318 m; within 80 km, large variations in elevation — a maximum elevation change of 1,036 m.
The land around Mon Repos is covered by artificial surfaces (50%) and grassland (30%) within 3 km, grassland (34%), water (26%) and trees (25%) within 16 km, and water (66%) and trees (22%) within 80 km.
Trinidad and Tobago travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 115 / 230 V · 60 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $18,967
- 2025
- Happiness
- 5.9 / 10
- World Happiness, 2025
- Safe drinking water
- 69%
- of population, 2024
- Homicide rate
- 40.4
- per 100k, 2022
- Road deaths
- 9.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mon Repos (10.2798°, -61.4459°, elevation 37 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.