Climate averages 1991–2020

Basseterre weather
in January.

A warm, fairly dry month: the 11th warmest and the 3rd driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 25.9°C Daytime mean, January

Average low 24.1°C Night-time mean, January

Rainfall 30 mm 10 days with ≥1 mm

Daylight 11 h Sunrise to sunset, per day

January is a warm month in Basseterre: daytime highs average 25.9°C and nights cool to about 24.1°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 30 mm of rain on roughly 10 days, which makes January a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 13 min on an average January day.

The nearest other city in this atlas is Saint John’s (96 km away). In January its highs average 26.2°C, about as warm as Basseterre, with 32 mm of rain.

From January to February, average highs stay level at 25.8°C, and monthly rainfall falls from 30 mm to 21 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Basseterre climate table

1991–2020

Monthly climate averages for Basseterre, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	25.9°C24.1°C	24.1°C	30	10.3	11.211 h
February	25.8°C23.9°C	23.9°C	21	7.4	11.612 h
March	26.1°C24.0°C	24.0°C	20	6.8	12.012 h
April	26.8°C24.5°C	24.5°C	33	8.5	12.513 h
May	27.5°C25.4°C	25.4°C	61	11.9	12.913 h
June	28.2°C26.0°C	26.0°C	47	10.9	13.113 h
July	28.3°C26.1°C	26.1°C	74	14.5	13.113 h
August	28.5°C26.3°C	26.3°C	91	17.0	12.713 h
September	28.5°C26.3°C	26.3°C	118	17.6	12.212 h
October	28.1°C26.0°C	26.0°C	125	17.8	11.812 h
November	27.3°C25.4°C	25.4°C	105	15.8	11.311 h
December	26.4°C24.7°C	24.7°C	54	13.2	11.111 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Basseterre

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Basseterre) is explained once on the Basseterre year overview and on the Sources, method and limits page.