Climate averages 1991–2020

Caguas weather
in January.

A warm, moderately wet month: the coolest and the 2nd driest of the year.

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

Average high 27.1°C Daytime mean, January

Average low 21.7°C Night-time mean, January

Rainfall 49 mm 16 days with ≥1 mm

Daylight 11 h Sunrise to sunset, per day

January is a warm month in Caguas: daytime highs average 27.1°C and nights cool to about 21.7°C. By daytime temperature it is the coolest month of the year.

Expect about 49 mm of rain on roughly 16 days, which makes January a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 10 min on an average January day.

The nearest other city in this atlas is Carolina (19 km away). In January its highs average 27.6°C, 0.5°C warmer than Caguas, with 39 mm of rain.

Among the 7 cities listed in Puerto Rico, Caguas ranks 7th of 7 for the warmest January highs and 7th of 7 for the driest January (rainfall, lowest first). The mean January high of those 7 cities is 28.0°C; Caguas is 0.9°C cooler than that mean.

From January to February, average highs rise by 0.4°C to 27.5°C, and monthly rainfall falls from 49 mm to 39 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

Caguas climate table

1991–2020

Monthly climate averages for Caguas, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	27.1°C21.7°C	21.7°C	49	15.7	11.211 h
February	27.5°C21.5°C	21.5°C	39	13.1	11.512 h
March	28.2°C21.6°C	21.6°C	55	14.8	12.012 h
April	28.9°C22.4°C	22.4°C	86	17.7	12.513 h
May	29.3°C23.5°C	23.5°C	141	21.9	13.013 h
June	29.9°C24.4°C	24.4°C	99	20.8	13.213 h
July	30.2°C24.6°C	24.6°C	110	21.7	13.113 h
August	30.3°C24.8°C	24.8°C	127	23.9	12.713 h
September	30.1°C24.6°C	24.6°C	168	25.2	12.312 h
October	29.5°C24.2°C	24.2°C	156	24.9	11.712 h
November	28.4°C23.3°C	23.3°C	124	22.3	11.311 h
December	27.4°C22.4°C	22.4°C	58	16.5	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 Caguas

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 Caguas) is explained once on the Caguas year overview and on the Sources, method and limits page.