Climate averages 1991–2020

Keelung weather
in January.

A mild, wet month: the coolest and the 8th driest of the year.

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

Average high 18.0°C Daytime mean, January

Average low 14.7°C Night-time mean, January

Rainfall 178 mm 20 days with ≥1 mm

Daylight 11 h Sunrise to sunset, per day

January is a mild month in Keelung: daytime highs average 18.0°C and nights cool to about 14.7°C. By daytime temperature it is the coolest month of the year.

Expect about 178 mm of rain on roughly 20 days, which makes January a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 46 min on an average January day.

The nearest other city in this atlas is Neihu (16 km away). In January its highs average 17.9°C, about as warm as Keelung, with 87 mm of rain.

Among the 28 cities listed in Taiwan, Keelung ranks 17th of 28 for the warmest January highs and 25th of 28 for the driest January (rainfall, lowest first). The mean January high of those 28 cities is 19.0°C; Keelung is 1.1°C cooler than that mean.

From January to February, average highs rise by 0.7°C to 18.7°C, and monthly rainfall falls from 178 mm to 172 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

Keelung climate table

1991–2020

Monthly climate averages for Keelung, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	18.0°C14.7°C	14.7°C	178	19.5	10.811 h
February	18.7°C15.0°C	15.0°C	172	17.2	11.311 h
March	20.9°C16.6°C	16.6°C	160	17.6	12.012 h
April	23.9°C19.6°C	19.6°C	133	14.5	12.713 h
May	26.7°C22.9°C	22.9°C	163	14.2	13.413 h
June	29.2°C25.4°C	25.4°C	141	13.2	13.714 h
July	30.5°C26.7°C	26.7°C	103	9.2	13.514 h
August	30.1°C26.6°C	26.6°C	171	12.7	13.013 h
September	28.3°C25.2°C	25.2°C	192	15.2	12.312 h
October	25.2°C22.8°C	22.8°C	204	15.5	11.612 h
November	22.8°C20.1°C	20.1°C	195	17.6	10.911 h
December	19.5°C16.5°C	16.5°C	186	18.9	10.611 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 Keelung

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