Climate averages 1991–2020

Lào Cai weather
in July.

A hot, very wet month: the 2nd warmest and the 11th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 31.3°C Daytime mean, July

Average low 24.8°C Night-time mean, July

Rainfall 261 mm 23 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

July is a hot month in Lào Cai: daytime highs average 31.3°C and nights cool to about 24.8°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 261 mm of rain on roughly 23 days, which makes July a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average July day.

The nearest other city in this atlas is Bắc Quang (92 km away). In July its highs average 31.5°C, about as warm as Lào Cai, with 443 mm of rain.

Among the 136 cities listed in Vietnam, Lào Cai ranks joint 62nd of 136 for the warmest July highs and 84th of 136 for the driest July (rainfall, lowest first). The mean July high of those 136 cities is 30.8°C; Lào Cai is 0.5°C warmer than that mean.

From July to August, average highs fall by 0.1°C to 31.2°C, and monthly rainfall rises from 261 mm to 268 mm.

The annual picture

July in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Lào Cai climate table

1991–2020

Monthly climate averages for Lào Cai, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	18.9°C12.1°C	12.1°C	96	18.1	10.911 h
February	21.4°C13.3°C	13.3°C	88	17.1	11.411 h
March	25.5°C16.7°C	16.7°C	126	19.0	12.012 h
April	29.3°C20.6°C	20.6°C	129	17.6	12.713 h
May	31.1°C23.5°C	23.5°C	199	19.7	13.213 h
June	31.8°C25.1°C	25.1°C	242	22.0	13.513 h
July, selected	31.3°C24.8°C	24.8°C	261	23.2	13.413 h
August	31.2°C24.5°C	24.5°C	268	22.4	12.913 h
September	29.8°C23.5°C	23.5°C	165	18.1	12.312 h
October	26.9°C21.2°C	21.2°C	118	16.6	11.612 h
November	23.9°C17.2°C	17.2°C	88	13.8	11.111 h
December	20.0°C13.2°C	13.2°C	92	14.1	10.811 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

July in nearby cities

Distance from Lào Cai

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lào Cai) is explained once on the Lào Cai year overview and on the Sources, method and limits page.