January in Jiufen — workable with trade-offs
Trade-offs · 6.6/10January averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 73 mm, so plan one flexible day in three; you still get about 0 sunny days and 10.6 hours of daylight.
It scores 6.6/10 here, 3rd of 12 months, against 7/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
February in Jiufen — workable with trade-offs
Trade-offs · 6/10February averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 106 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6/10 here, 5th of 12 months, against 7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
March in Jiufen — the year's strongest window
Best window · 7/10March averages 20°C (68°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rainfall runs 92 mm, so plan one flexible day in three; you still get about 9 sunny days and 11.8 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Jiufen at 7/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
April in Jiufen — workable with trade-offs
Trade-offs · 6.1/10April averages 23°C (74°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 124 mm this is a genuinely wet month: about 11 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.1/10 here, 4th of 12 months, against 7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
May in Jiufen — the hardest end of the year
Hardest · 4.7/10May averages 25°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
239 mm of rain puts this in monsoon territory — about 13 sunny days across the whole month, and multi-day washouts are normal.
It scores 4.7/10 here, 7th of 12 months, against 7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, March is materially better in Jiufen — 2.3 points higher on the same scale.
June in Jiufen — the hardest end of the year
Hardest · 4/10June averages 28°C (82°F) with humidity around 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 189 mm this is a genuinely wet month: about 19 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4/10 here, 9th of 12 months, against 7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, March is materially better in Jiufen — 3 points higher on the same scale.
July in Jiufen — the hardest end of the year
Hardest · 3.8/10July averages 29°C (85°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 151 mm this is a genuinely wet month: about 31 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.8/10 here, 12th of 12 months, against 7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, March is materially better in Jiufen — 3.2 points higher on the same scale.
August in Jiufen — the hardest end of the year
Hardest · 3.9/10August averages 29°C (84°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 152 mm this is a genuinely wet month: about 27 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.9/10 here, 11th of 12 months, against 7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, March is materially better in Jiufen — 3.1 points higher on the same scale.
September in Jiufen — the hardest end of the year
Hardest · 4.2/10September averages 28°C (82°F) with humidity around 84%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 159 mm this is a genuinely wet month: about 20 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.2/10 here, 8th of 12 months, against 7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, March is materially better in Jiufen — 2.8 points higher on the same scale.
October in Jiufen — the hardest end of the year
Hardest · 4/10October averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 197 mm this is a genuinely wet month: about 6 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4/10 here, 10th of 12 months, against 7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
If your dates are flexible, March is materially better in Jiufen — 3 points higher on the same scale.
November in Jiufen — workable with trade-offs
Trade-offs · 5.9/10November averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 106 mm this is a genuinely wet month: about 3 sunny days in total, and outdoor plans need an indoor fallback.
It scores 5.9/10 here, 6th of 12 months, against 7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
December in Jiufen — workable with trade-offs
Trade-offs · 6.7/10December averages 19°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 71 mm, so plan one flexible day in three; you still get about 0 sunny days and 10.4 hours of daylight.
It scores 6.7/10 here, 2nd of 12 months, against 7/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
