Climate averages 1991–2020

Kỳ Anh weather
in September.

A hot, very wet month: the 6th warmest and the 11th driest of the year.

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

Average high 29.8°C Daytime mean, September

Average low 25.4°C Night-time mean, September

Rainfall 312 mm 21 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

September is a hot month in Kỳ Anh: daytime highs average 29.8°C and nights cool to about 25.4°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 312 mm of rain on roughly 21 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 15 min on an average September day.

The nearest other city in this atlas is Ba Đồn (37 km away). In September its highs average 29.6°C, about as warm as Kỳ Anh, with 366 mm of rain.

Among the 136 cities listed in Vietnam, Kỳ Anh ranks joint 87th of 136 for the warmest September highs and joint 117th of 136 for the driest September (rainfall, lowest first). The mean September high of those 136 cities is 29.7°C; Kỳ Anh is 0.1°C warmer than that mean.

From September to October, average highs fall by 2.5°C to 27.3°C, and monthly rainfall rises from 312 mm to 427 mm.

The annual picture

September 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

Kỳ Anh climate table

1991–2020

Monthly climate averages for Kỳ Anh, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	21.5°C17.5°C	17.5°C	67	12.4	11.211 h
February	23.2°C18.5°C	18.5°C	45	9.7	11.512 h
March	26.6°C20.9°C	20.9°C	56	10.1	12.012 h
April	30.3°C23.9°C	23.9°C	77	10.6	12.513 h
May	32.3°C26.3°C	26.3°C	126	14.9	13.013 h
June	33.8°C27.6°C	27.6°C	80	10.2	13.213 h
July	33.6°C27.3°C	27.3°C	132	12.8	13.113 h
August	32.2°C26.7°C	26.7°C	189	16.9	12.713 h
September, selected	29.8°C25.4°C	25.4°C	312	21.4	12.312 h
October	27.3°C23.5°C	23.5°C	427	22.9	11.712 h
November	25.1°C21.3°C	21.3°C	246	18.0	11.311 h
December	22.0°C18.5°C	18.5°C	128	15.6	11.111 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

September in nearby cities

Distance from Kỳ Anh

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 Kỳ Anh) is explained once on the Kỳ Anh year overview and on the Sources, method and limits page.