Climate averages 1991–2020
Keelung weather
in May.
A warm, wet month: the 5th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Keelung: daytime highs average 26.7°C and nights cool to about 22.9°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 163 mm of rain on roughly 14 days, which makes May a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 21 min on an average May day.
The nearest other city in this atlas is Neihu (16 km away). In May its highs average 27.0°C, about as warm as Keelung, with 200 mm of rain.
Among the 28 cities listed in Taiwan, Keelung ranks 24th of 28 for the warmest May highs and 8th of 28 for the driest May (rainfall, lowest first). The mean May high of those 28 cities is 27.5°C; Keelung is 0.8°C cooler than that mean.
From May to June, average highs rise by 2.5°C to 29.2°C, and monthly rainfall falls from 163 mm to 141 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages 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
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 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, selected | 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
May in nearby cities
- Neihu in MayTaiwan · 16 kmHigh 27.0°C · Low 22.4°C · 200 mm rain
- Taipei in MayTaiwan · 23 kmHigh 27.2°C · Low 22.0°C · 200 mm rain
- Danshui, Taiwan in MayTaiwan · 30 kmHigh 27.1°C · Low 22.7°C · 157 mm rain
- Banqiao in MayTaiwan · 30 kmHigh 27.2°C · Low 21.2°C · 200 mm rain
- Shulin in MayTaiwan · 36 kmHigh 27.0°C · Low 21.1°C · 200 mm rain
- Yilan, Taiwan in MayTaiwan · 42 kmHigh 26.4°C · Low 21.4°C · 297 mm rain
- Sanxia in MayTaiwan · 43 kmHigh 28.2°C · Low 21.6°C · 140 mm rain
- Taoyuan in MayTaiwan · 47 kmHigh 26.6°C · Low 21.2°C · 140 mm rain
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 limitsHow 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.