Keelung weather in January
In January, Keelung sees average daytime highs of 18°C and overnight lows near 15°C, with 178 mm of rain across 19.4 wet days and about 10.6 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 17% of the time in January, and the air most often feels dry.
Daylight stretches from about 10 h 30 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Keelung's 11th-clearest and 4th-windiest month. For the whole year in context, see Keelung's year-round climate.
- Daytime high
- 18°
- 12th warmest
- Overnight low
- 15°
- 1st coldest
- Rainfall
- 178 mm
- 19.4 wet days
- Daylight
- 10 h 36 min
- 6:44 AM – 5:20 PM
- Cloud cover
- 76%
- 11th clearest
- Wind
- 24 km/h
- 4th windiest
- Solar energy
- 2.23 kWh/m²
- Travel score
- 4.3
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 18°C through the month.
A typical January day in Keelung reaches about 18°C in the afternoon and slips back to 15°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
| Avg low (°C) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 16 |
| 2 | 18 | 16 |
| 3 | 18 | 16 |
| 4 | 18 | 16 |
| 5 | 18 | 16 |
| 6 | 18 | 16 |
| 7 | 18 | 16 |
| 8 | 18 | 16 |
| 9 | 18 | 16 |
| 10 | 18 | 16 |
| 11 | 18 | 15 |
| 12 | 18 | 15 |
| 13 | 18 | 15 |
| 14 | 18 | 15 |
| 15 | 18 | 15 |
| 16 | 18 | 15 |
| 17 | 17 | 15 |
| 18 | 17 | 15 |
| 19 | 17 | 15 |
| 20 | 17 | 15 |
| 21 | 17 | 15 |
| 22 | 17 | 15 |
| 23 | 17 | 15 |
| 24 | 17 | 15 |
| 25 | 17 | 15 |
| 26 | 17 | 15 |
| 27 | 17 | 15 |
| 28 | 17 | 15 |
| 29 | 17 | 15 |
| 30 | 17 | 15 |
| 31 | 17 | 15 |
How January really feels in Keelung
Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Keelung weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 18° / 15° | 178 | 19.4 | 10.6 | 4.3 |
| Feb | 18° / 15° | 172 | 17.1 | 11.1 | 4.5 |
| Mar | 20° / 17° | 160 | 17.6 | 11.8 | 5.1 |
| Apr | 23° / 20° | 133 | 14.5 | 12.6 | 5.9 |
| May | 25° / 23° | 163 | 14.2 | 13.2 | 6.0 |
| Jun | 28° / 26° | 141 | 13.2 | 13.5 | 5.4 |
| Jul | 29° / 27° | 103 | 9.2 | 13.4 | 5.5 |
| Aug | 29° / 27° | 171 | 12.8 | 12.9 | 5.3 |
| Sep | 27° / 26° | 192 | 15.2 | 12.2 | 5.7 |
| Oct | 25° / 23° | 205 | 15.5 | 11.4 | 6.0 |
| Nov | 22° / 20° | 195 | 17.6 | 10.8 | 5.4 |
| Dec | 19° / 17° | 186 | 18.9 | 10.5 | 4.8 |
Cloud cover in January
The sky is clear or mostly clear about 17% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 7% of January, with mostly cloudy or overcast conditions the remaining 76%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 29 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 |
| Cloudier (%) | 71 | 71 | 72 | 72 | 73 | 73 | 74 | 74 | 75 | 75 | 76 | 76 | 76 | 77 | 77 | 78 | 78 | 78 | 78 | 77 | 78 | 78 | 77 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 76 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 29 | 71 |
| 2 | 29 | 71 |
| 3 | 28 | 72 |
| 4 | 28 | 72 |
| 5 | 27 | 73 |
| 6 | 27 | 73 |
| 7 | 26 | 74 |
| 8 | 26 | 74 |
| 9 | 25 | 75 |
| 10 | 25 | 75 |
| 11 | 24 | 76 |
| 12 | 24 | 76 |
| 13 | 24 | 76 |
| 14 | 23 | 77 |
| 15 | 23 | 77 |
| 16 | 22 | 78 |
| 17 | 22 | 78 |
| 18 | 22 | 78 |
| 19 | 22 | 78 |
| 20 | 23 | 77 |
| 21 | 22 | 78 |
| 22 | 22 | 78 |
| 23 | 23 | 77 |
| 24 | 22 | 78 |
| 25 | 23 | 77 |
| 26 | 23 | 77 |
| 27 | 23 | 77 |
| 28 | 23 | 77 |
| 29 | 23 | 77 |
| 30 | 23 | 77 |
| 31 | 24 | 76 |
Chance of precipitation in January
Keelung gets around 178 mm of rain over 19.4 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 63% and peaks near 66% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 57 | 58 | 58 | 59 | 59 | 60 | 60 | 61 | 62 | 62 | 63 | 63 | 64 | 64 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | 65 | 65 | 64 | 64 |
| Rain chance (%) | |
|---|---|
| 1 | 57 |
| 2 | 58 |
| 3 | 58 |
| 4 | 59 |
| 5 | 59 |
| 6 | 60 |
| 7 | 60 |
| 8 | 61 |
| 9 | 62 |
| 10 | 62 |
| 11 | 63 |
| 12 | 63 |
| 13 | 64 |
| 14 | 64 |
| 15 | 64 |
| 16 | 65 |
| 17 | 65 |
| 18 | 65 |
| 19 | 66 |
| 20 | 66 |
| 21 | 66 |
| 22 | 66 |
| 23 | 66 |
| 24 | 66 |
| 25 | 66 |
| 26 | 66 |
| 27 | 66 |
| 28 | 65 |
| 29 | 65 |
| 30 | 64 |
| 31 | 64 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 54% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 53 | 53 | 53 | 54 | 55 | 57 | 57 | 57 | 57 | 59 | 59 | 58 | 59 | 59 | 59 | 60 | 59 | 59 | 58 |
| Comfortable (%) | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 |
| Humid (%) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 |
| Muggy (%) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 48 | 29 | 19 | 4 |
| 2 | 48 | 29 | 19 | 4 |
| 3 | 48 | 28 | 19 | 4 |
| 4 | 49 | 28 | 19 | 4 |
| 5 | 49 | 28 | 19 | 4 |
| 6 | 49 | 28 | 19 | 4 |
| 7 | 49 | 27 | 19 | 4 |
| 8 | 50 | 27 | 19 | 4 |
| 9 | 50 | 27 | 19 | 4 |
| 10 | 50 | 26 | 20 | 4 |
| 11 | 50 | 26 | 20 | 4 |
| 12 | 50 | 26 | 20 | 4 |
| 13 | 53 | 25 | 19 | 3 |
| 14 | 53 | 25 | 19 | 3 |
| 15 | 53 | 25 | 19 | 3 |
| 16 | 54 | 25 | 18 | 3 |
| 17 | 55 | 25 | 18 | 2 |
| 18 | 57 | 24 | 17 | 2 |
| 19 | 57 | 24 | 17 | 2 |
| 20 | 57 | 25 | 16 | 2 |
| 21 | 57 | 25 | 16 | 2 |
| 22 | 59 | 25 | 15 | 1 |
| 23 | 59 | 25 | 15 | 1 |
| 24 | 58 | 26 | 15 | 1 |
| 25 | 59 | 26 | 14 | 1 |
| 26 | 59 | 26 | 14 | 1 |
| 27 | 59 | 26 | 14 | 1 |
| 28 | 60 | 26 | 13 | 1 |
| 29 | 59 | 27 | 13 | 1 |
| 30 | 59 | 27 | 13 | 1 |
| 31 | 58 | 27 | 14 | 1 |
Wind in January
Winds average 24 km/h in January.
Across January, daily wind ranges from about 24 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 24 | breezy |
| 5 | 24 | breezy |
| 6 | 24 | breezy |
| 7 | 24 | breezy |
| 8 | 24 | breezy |
| 9 | 24 | breezy |
| 10 | 24 | breezy |
| 11 | 24 | breezy |
| 12 | 24 | breezy |
| 13 | 24 | breezy |
| 14 | 24 | breezy |
| 15 | 24 | breezy |
| 16 | 24 | breezy |
| 17 | 24 | breezy |
| 18 | 24 | breezy |
| 19 | 24 | breezy |
| 20 | 24 | breezy |
| 21 | 24 | breezy |
| 22 | 24 | breezy |
| 23 | 24 | breezy |
| 24 | 24 | breezy |
| 25 | 24 | breezy |
| 26 | 24 | breezy |
| 27 | 24 | breezy |
| 28 | 24 | breezy |
| 29 | 24 | breezy |
| 30 | 24 | breezy |
| 31 | 24 | breezy |
Sunrise & sunset in January
Daylight runs from about 10 h 30 min at the start of January to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over January. Sunrise moves from 6:42 AM to 6:42 AM, and sunset from 5:10 PM to 5:31 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 |
| Sunrise (AM) | 6:42 | 6:43 | 6:43 | 6:43 | 6:43 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:43 | 6:43 | 6:43 | 6:43 | 6:42 | 6:42 | 6:42 |
| Sunset (PM) | 5:10 | 5:11 | 5:11 | 5:12 | 5:13 | 5:13 | 5:14 | 5:15 | 5:15 | 5:16 | 5:17 | 5:17 | 5:18 | 5:19 | 5:19 | 5:20 | 5:21 | 5:22 | 5:22 | 5:23 | 5:24 | 5:25 | 5:25 | 5:26 | 5:27 | 5:27 | 5:28 | 5:29 | 5:30 | 5:30 | 5:31 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.5 | 6:42 | 5:10 |
| 2 | 10.5 | 6:43 | 5:11 |
| 3 | 10.5 | 6:43 | 5:11 |
| 4 | 10.5 | 6:43 | 5:12 |
| 5 | 10.5 | 6:43 | 5:13 |
| 6 | 10.5 | 6:44 | 5:13 |
| 7 | 10.5 | 6:44 | 5:14 |
| 8 | 10.5 | 6:44 | 5:15 |
| 9 | 10.5 | 6:44 | 5:15 |
| 10 | 10.5 | 6:44 | 5:16 |
| 11 | 10.5 | 6:44 | 5:17 |
| 12 | 10.5 | 6:44 | 5:17 |
| 13 | 10.6 | 6:44 | 5:18 |
| 14 | 10.6 | 6:44 | 5:19 |
| 15 | 10.6 | 6:44 | 5:19 |
| 16 | 10.6 | 6:44 | 5:20 |
| 17 | 10.6 | 6:44 | 5:21 |
| 18 | 10.6 | 6:44 | 5:22 |
| 19 | 10.6 | 6:44 | 5:22 |
| 20 | 10.6 | 6:44 | 5:23 |
| 21 | 10.7 | 6:44 | 5:24 |
| 22 | 10.7 | 6:44 | 5:25 |
| 23 | 10.7 | 6:44 | 5:25 |
| 24 | 10.7 | 6:44 | 5:26 |
| 25 | 10.7 | 6:43 | 5:27 |
| 26 | 10.7 | 6:43 | 5:27 |
| 27 | 10.8 | 6:43 | 5:28 |
| 28 | 10.8 | 6:43 | 5:29 |
| 29 | 10.8 | 6:42 | 5:30 |
| 30 | 10.8 | 6:42 | 5:30 |
| 31 | 10.8 | 6:42 | 5:31 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 2.23 kWh/m².
For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 6.15 kWh/m² in July across the year — January's 2.23 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.3 | 2.3 | 2.3 | 2.3 | 2.4 | 2.4 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.2 | Moderate |
| 2 | 2.2 | Moderate |
| 3 | 2.2 | Moderate |
| 4 | 2.2 | Moderate |
| 5 | 2.2 | Moderate |
| 6 | 2.2 | Moderate |
| 7 | 2.2 | Moderate |
| 8 | 2.2 | Moderate |
| 9 | 2.2 | Moderate |
| 10 | 2.2 | Moderate |
| 11 | 2.2 | Moderate |
| 12 | 2.2 | Moderate |
| 13 | 2.2 | Moderate |
| 14 | 2.2 | Moderate |
| 15 | 2.2 | Moderate |
| 16 | 2.2 | Moderate |
| 17 | 2.2 | Moderate |
| 18 | 2.2 | Moderate |
| 19 | 2.2 | Moderate |
| 20 | 2.2 | Moderate |
| 21 | 2.2 | Moderate |
| 22 | 2.2 | Moderate |
| 23 | 2.2 | Moderate |
| 24 | 2.2 | Moderate |
| 25 | 2.2 | Moderate |
| 26 | 2.3 | Moderate |
| 27 | 2.3 | Moderate |
| 28 | 2.3 | Moderate |
| 29 | 2.3 | Moderate |
| 30 | 2.4 | Moderate |
| 31 | 2.4 | Moderate |
Hazard calendar for Keelung
In January, Keelung sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Keelung sits in the Pacific typhoon belt; the season peaks July–October.
Is January a good time to visit Keelung?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Keelung for sightseeing.
What to pack for Keelung in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Keelung sees daytime highs around 18°C and nights near 15°C. Pack rain gear. Worth having: a windbreaker. About 19 days see rain.
Sea temperature near Keelung in January
The nearest coast averages about 21°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in August at about 28°C and coldest in January near 21°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 21 | 21 | 22 | 24 | 25 | 27 | 28 | 28 | 27 | 26 | 24 | 23 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Warm | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 21 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 24 | Refreshing |
| May | 25 | Warm |
| Jun | 27 | Warm |
| Jul | 28 | Tropical |
| Aug | 28 | Tropical |
| Sep | 27 | Warm |
| Oct | 26 | Warm |
| Nov | 24 | Warm |
| Dec | 23 | Refreshing |
UV index in Keelung in January
Clear-sky midday UV in January peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Keelung peaks around June 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 9 | 8 | 10 | 12 | 11 | 9 | 11 | 8 | 7 | 4 |
| Level | Moderate | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Extreme | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | Moderate |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 10 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 11 | Extreme |
| Oct | 8 | Very high |
| Nov | 7 | High |
| Dec | 4 | Moderate |
Air quality in Keelung in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Keelung is worst in April — around 47 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (October, 20 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 29 | 36 | 44 | 47 | 42 | 42 | 34 | 28 | 24 | 20 | 25 | 25 |
| Level | Moderate | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 29 | Moderate |
| Feb | 36 | Poor |
| Mar | 44 | Poor |
| Apr | 47 | Poor |
| May | 42 | Poor |
| Jun | 42 | Poor |
| Jul | 34 | Moderate |
| Aug | 28 | Moderate |
| Sep | 24 | Moderate |
| Oct | 20 | Moderate |
| Nov | 25 | Moderate |
| Dec | 25 | Moderate |
Where is Keelung?
Keelung sits at 25.1°N, 121.7°E, 19 m above sea level, in Taiwan. The nearest listed city is Jiufen, 11 km away.
Topography around Keelung
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Keelung.
Within 3 km, the terrain around Keelung has only modest variations in elevation — a maximum elevation change of 197 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 907 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,613 m.
The land around Keelung is covered by trees (58%) and artificial surfaces (32%) within 3 km, trees (59%) and water (35%) within 16 km, and water (62%) and trees (31%) within 80 km.
Taiwan travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 110 / 220 V · 60 Hz
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Keelung (25.1309°, 121.7409°, elevation 19 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).