worldweather

Weather in Basseterre - 14-day forecast

Detailed weather forecast for Basseterre, Saint Kitts and Nevis: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Basseterre
today🌧️ 32°💧 0.4 mm
Sun🌧️ 32°💧 2.2 mm
Mon🌤️ 28°💧 1.3 mm
Tue🌧️ 28°💧 2 mm
Wed🌧️ 28°💧 3.4 mm
Thu🌧️ 28°💧 0.3 mm
Fri🌧️ 28°💧 0.2 mm
Sat🌧️ 28°💧 2.2 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

Saturday 5 Sept in Basseterre, the forecast high is 32°C. Typical daytime temperatures at this time of year range from 28°C to 29°C, so it will be exceptionally warm. It is warmer than 99% of similar days.

32°Cexceptionally warm
usually 28°C–29°C
warmer than 99% of similar days
night: near normal rain: less rain than usual wind: typical
32°Cexceptionally warm
usually 28°C–29°C
warmer than 99% of similar days
night: near normal rain: typical rainfall wind: stronger than usual
28°Cexceptionally cool
usually 28°C–29°C
cooler than 92% of similar days
night: near normal rain: typical rainfall wind: stronger than usual
28°Cexceptionally cool
usually 28°C–29°C
cooler than 95% of similar days
night: cooler than usual rain: typical rainfall wind: exceptionally strong
28°Cexceptionally cool
usually 28°C–29°C
cooler than 94% of similar days
night: near normal rain: typical rainfall wind: exceptionally strong
28°Cexceptionally cool
usually 28°C–29°C
cooler than 95% of similar days
night: near normal rain: less rain than usual wind: exceptionally strong
28°Cexceptionally cool
usually 28°C–29°C
cooler than 96% of similar days
night: near normal rain: exceptionally dry wind: stronger 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: 28°C1983: 28°C1984: 28°C1985: 28°C1986: 28°C1987: 28°C1988: 28°C1989: 29°C1990: 28°C1991: 28°C1992: 28°C1993: 28°C1994: 29°C1995: 28°C1996: 28°C1997: 28°C1998: 29°C1999: 29°C2000: 29°C2001: 29°C2002: 29°C2003: 29°C2004: 29°C2005: 30°C2006: 29°C2007: 29°C2008: 29°C2009: 29°C2010: 29°C2011: 29°C2012: 29°C2013: 29°C2014: 29°C2015: 29°C2016: 29°C2017: 29°C2018: 29°C2019: 29°C2020: 29°C2021: 30°C2022: 29°C2023: 30°C2024: 30°C2025: 30°C 2026 forecast: 29°C current forecast 29°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1984 (28°C) and the warmest was 2023 (30°C). The current forecast averages 29°C - higher than in 82% 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 - Basseterre

Basseterre - 14-day weather forecast infographic

Basseterre 30 & 45-day weather - long-range outlook

Next 15 days · forecast
28°
around 27° at night · days with rain: 11
Weeks 3-4 · avg for September
31°
around 25° at night · rain chance 44%
Weeks 5-7 · avg for October
31°
around 25° at night · rain chance 48%
The 30 & 45-day outlook for Basseterre: the next 15 days are a numerical forecast updated daily - on average 28° by day and 27° at night. Further out we rely on multi-year climate averages: around 31° in September, and about 31° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Basseterre

Saturday5 September 2026
🌧️32°light rain
sunrise 05:58 · sunset 18:21 · night 28° · evening 30° · rain 0.35 mm · humidity 79% · wind 8 m/s · clouds 37%
Sunday6 September 2026
🌧️32°light rain
sunrise 05:58 · sunset 18:21 · night 28° · evening 28° · rain 2.19 mm · humidity 81% · wind 8 m/s · clouds 1%
Monday7 September 2026
🌤️28°scattered clouds
sunrise 05:58 · sunset 18:20 · night 28° · evening 28° · rain 1.27 mm · humidity 80% · wind 9 m/s · clouds 42%
Tuesday8 September 2026
🌧️28°light rain
sunrise 05:58 · sunset 18:19 · night 27° · evening 28° · rain 1.96 mm · humidity 77% · wind 10 m/s · clouds 4%
Wednesday9 September 2026
🌧️28°light rain
sunrise 05:58 · sunset 18:18 · night 28° · evening 28° · rain 3.36 mm · humidity 81% · wind 9 m/s · clouds 64%
Thursday10 September 2026
🌧️28°light rain
sunrise 05:58 · sunset 18:17 · night 28° · evening 28° · rain 0.3 mm · humidity 81% · wind 10 m/s · clouds 34%
Friday11 September 2026
🌧️28°light rain
sunrise 05:58 · sunset 18:16 · night 28° · evening 28° · rain 0.15 mm · humidity 77% · wind 9 m/s · clouds 15%
Saturday12 September 2026
🌧️28°light rain
sunrise 05:59 · sunset 18:16 · night 27° · evening 28° · rain 2.19 mm · humidity 77% · wind 9 m/s · clouds 100%
Sunday13 September 2026
🌧️28°light rain
sunrise 05:59 · sunset 18:15 · night 28° · evening 28° · rain 0.81 mm · humidity 70% · wind 10 m/s · clouds 94%
Monday14 September 2026
🌧️28°light rain
sunrise 05:59 · sunset 18:14 · night 28° · evening 28° · rain 1.71 mm · humidity 75% · wind 9 m/s · clouds 10%
Tuesday15 September 2026
🌧️28°light rain
sunrise 05:59 · sunset 18:13 · night 28° · evening 27° · rain 4.83 mm · humidity 79% · wind 9 m/s · clouds 100%
Wednesday16 September 2026
🌧️28°light rain
sunrise 05:59 · sunset 18:12 · night 27° · evening 28° · rain 6.27 mm · humidity 79% · wind 10 m/s · clouds 63%
Thursday17 September 2026
🌧️28°light rain
sunrise 05:59 · sunset 18:11 · night 27° · evening 27° · rain 1.74 mm · humidity 71% · wind 10 m/s · clouds 65%
Friday18 September 2026
🌧️26°moderate rain
sunrise 05:59 · sunset 18:11 · night 27° · evening 27° · rain 31.35 mm · humidity 79% · wind 8 m/s · clouds 91%
Saturday19 September 2026
🌧️28°moderate rain
sunrise 05:59 · sunset 18:10 · night 28° · evening 28° · rain 7.17 mm · humidity 80% · wind 10 m/s · clouds 100%

UV index in Basseterre - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTBasseterre03681111+8.5UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 25 min9Sat5.099Sun6.099Mon7.099Tue8.099Wed9.099Thu10.099Fri11.098Sat12.097Sun13.099Mon14.099Tue15.099Wed16.099Thu17.094Fri18.099Sat19.099Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Basseterre is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - Basseterre

Water today
29°C
Week avg
29°C
Waves today
0.7 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 29°C6.09 29°C7.09 29°C8.09 29°C9.09 29°C10.09 29°C11.09 29°C12.09 29°C13.09 29°C
Average sea temperature through the year:
Jan 27°CFeb 27°CMar 27°CApr 28°CMay 29°CJun 29°CJul 29°CAug 30°CSep 30°COct 30°CNov 29°CDec 28°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Basseterre weather through the year

Basseterre - annual climate

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

Nearby and related places

Saint CroixCharlotte AmalieRoseauFajardoHumacaoCarolinaCaguasBissauApiaBridgetownTorshavnDakhlaTarawa

FAQ - Basseterre weather

What is the weather like in Basseterre today?
Today it is about 32° during the day and 28° at night, light rain.
How far ahead can I check the forecast for Basseterre?
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.