January in Jiufen: mixed conditions, plan around the weather
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 almost no days with 6+ hours of sunshine 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.
Plan for peak pricing, with 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: mixed conditions, plan around the weather
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: almost no days with 6+ hours of sunshine 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.
Plan for mid-season pricing, with 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 tops the year's climate scores
Best window · 7/10At 20°C (68°F) this is comfortable city weather in March, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 92 mm of rain this month — a flexible day or two helps — with about 9 days with 6+ hours of sunshine and 11.8 hours of daylight to work around it.
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.
Budget for 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, a hat and real sun protection, a packable rain layer.
April in Jiufen — middling scores, decent value
Trade-offs · 6.1/10April averages 23°C (74°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
At 124 mm this is a genuinely wet month: about 11 days with 6+ hours of sunshine 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.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
May in Jiufen: expect compromises
Hardest · 4.7/10At 25°C (76°F) this is comfortable city weather in May, with sightseeing easiest before lunch and after the afternoon peak.
Expect monsoon-level rainfall at 239 mm: only about 13 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 4.7/10 on the same scale — 7th of 12 months, versus 7/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack light clothing, a hat 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: expect compromises
Hardest · 4/10June averages 28°C (82°F) and humidity near 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 days with 6+ hours of sunshine 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.
Figure on low-season pricing, with 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.
Flexible dates? March scores 3 points higher here — enough to change the trip.
July in Jiufen — the hardest end of the year
Hardest · 3.8/10July averages 29°C (85°F) and humidity near 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 151 mm — wet for this destination — but about 31 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 3.8/10 here, 12th of 12 months, against 7/10 in the destination's best month.
Plan for low-season pricing, with 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.
Flexible dates? March scores 3.2 points higher here — enough to change the trip.
August in Jiufen — the hardest end of the year
Hardest · 3.9/10Days in August average 29°C (84°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
152 mm of rain makes this a wet month here, though with about 27 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 3.9/10 on the same scale — 11th of 12 months, versus 7/10 for the best month here.
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 — off-season conditions
Hardest · 4.2/10Days in September average 28°C (82°F) and humidity near 84% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
159 mm of rain makes this a wet month here, though with about 20 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 4.2/10 on the same scale — 8th of 12 months, versus 7/10 for the best month here.
Budget for 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: expect compromises
Hardest · 4/10October averages 25°C (77°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
At 197 mm this is a genuinely wet month: about 6 days with 6+ hours of sunshine 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.
Figure on low-season pricing, with crowds are light for this destination.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Flexible dates? March scores 3 points higher here — enough to change the trip.
November in Jiufen — middling scores, decent value
Trade-offs · 5.9/10November averages 23°C (73°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
At 106 mm this is a genuinely wet month: about 3 days with 6+ hours of sunshine 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.
Plan for mid-season pricing, with crowds are moderate.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
December in Jiufen — middling scores, decent value
Trade-offs · 6.7/10Temperatures hover around 19°C (65°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 71 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 10.4 hours of daylight to work around it.
That is 6.7/10 on the same scale — 2nd of 12 months, versus 7/10 for the best month here.
Budget for 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.
