Similar Climates › City Pairings › Patna ≈ Vientiane

City Pairings

🇮🇳 Patna’s climate twin is 🇱🇦 Vientiane, Laos

fair match

Patna, India and Vientiane, Laos are a fair climate match — 1,989 km (1,236 mi) apart. Patna is Köppen zone Cwa; Vientiane is Aw.

See Patna on the interactive map →

What to expect

Patna is classed dry-winter subtropical (Cwa) while Vientiane is tropical savanna (Aw) — different Köppen labels, but January and July still land close enough to pair. They sit only about 1,989 km (1,236 mi) apart — a short hop on the atlas for a climate match this close.

It is a fair match — close on the main numbers, with a few seasonal quirks between Patna and Vientiane. January means differ by 6°C (Vientiane warmer); July by 1°C (Vientiane cooler).

Sunshine stays close: Vientiane at 8.9 h/day on average versus 8.7 h/day in Patna (January 10 h / 9.2 h, July 7.8 h / 8.2 h). Air quality: mean PM2.5 is 13 µg/m³ in Vientiane vs 71 in Patna (lower by 58 µg/m³). Humidity: dew point in Vientiane runs about 4°C higher in January (15°C vs 11°C), so the air feels muggier.

January & July climate

January & July · °C and mm

PatnaVientiane
January
Temp
23° / 9°
29° / 16°
Rain
15 mm
5 mm
Dew
11°
15°
PM2.5
116.3 µg/m³
18.1 µg/m³
Sun
9.2 h
10.0 h
July
Temp
33° / 26°
32° / 25°
Rain
305 mm
305 mm
Dew
26°
24°
PM2.5
26.4 µg/m³
8.7 µg/m³
Sun
8.2 h
7.8 h

Compare Patna and Vientiane month by month on the interactive map →

See Vientiane's climate twin on its own page.

Frequently asked questions

What place has a climate like Patna?

On Similar Climates, Vientiane, Laos is the closest distant match for Patna, India — scored fair, about 1,989 km (1,236 mi) away.

How far is Patna from its climate twin?

Patna and Vientiane are separated by roughly 1,989 km (1,236 mi) on the great-circle route.

Do Patna and Vientiane have their seasons at the same time?

Yes — both cities are in the same hemisphere, so summer and winter fall in the same calendar months.

Do Patna and Vientiane share a Köppen climate zone?

No — Patna is dry-winter subtropical (Cwa) and Vientiane is tropical savanna (Aw), but the January and July numbers still align closely enough to pair.

What is the climate like in Patna?

Patna has a dry-winter subtropical climate (Cwa). January averages a high of 23°C and a low of 9°C with 15 mm of rain; July averages 33°C / 26°C and 305 mm.

How sunny is Patna?

Patna averages about 9.2 hours of sunshine a day in January and 8.2 hours in July.

What is the air quality like in Patna?

January PM2.5 averages about 116.3 µg/m³ (US AQI 198); July averages 26.4 µg/m³ (US AQI 84).

Other close climate matches for Patna: Cuiabá (loose), Ho Chi Minh City (loose), Beira (loose).

More dry-winter subtropical cities

All dry-winter subtropical (Cwa) cities on Similar Climates →

Explore Patna and Vientiane on the interactive map →

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