Hanoi climate
Vietnam
Hanoi climate can look simple on averages, but travel comfort is often driven by humidity, wind, and rain.
In Hanoi, seasonality tends to show up in mornings/evenings and indoor-outdoor gaps more than in a single number.
Climate facts
Dec · Jan · Feb
Avg low 14–17°C / high 20–23°C · Rainy days: 4–10 / 15–45 mm
Mar · Apr · Oct · Nov
Avg low 18–23°C / high 25–31°C · Rainy days: 4–12 / 40–120 mm
Mar · Apr · Oct · Nov
Avg low 18–23°C / high 25–31°C · Rainy days: 4–12 / 40–120 mm
May · Jun · Jul · Aug · Sep
Avg low 25–27°C / high 31–35°C · Rainy days: 12–22 / 150–320 mm (often peaking Aug–Sep)
How it tends to feel for travel
For travel, what you remember is often variability (rain patterns, humidity, daily swings), not the average.
When it tends to fit
- • Once you see the year-round pattern, it’s easier to judge whether a month fits your style.
- • If you revisit the city, separating “seasonal itineraries” can save a lot of planning time.
- • In humidity- or rain-driven cities, adjusting the indoor/outdoor ratio can change comfort a lot.
When it may not fit
- • If you rely only on averages, you may be surprised by variability (squalls, wind, indoor AC).
- • In monsoon-like periods, the more your itinerary depends on outdoor walking, the higher the risk.
- • If you’re fine with cold but hate damp chill, it can feel colder than you expect.
Outfit notes
This connects climate patterns to packing—without over-interpreting.
- • 🌦️ Baseline: Hanoi is defined by hot, humid, showery summers and surprisingly cool, damp winters. Layers and quick-dry choices often stabilize comfort better than a single “perfect outfit.”
- • 🔥 Summer (May–Sep): Sweat + sudden showers make getting wet likely. Quick-dry fabrics, a water-safe pouch, and spare tee/socks reduce the “staying damp” time.
- • 🧊 AC contrast: If you’re damp, strong indoor AC can feel worse. A thin shirt/cardigan helps.
In the end, it often depends on one or two conditions you care about most.
Explore Hanoi
These pages are connected so you can compare conditions and decide for yourself.