Weather in Alappuzha in August

Shoulder season. August sits in between. You will get good days and you will lose some. You should expect rain on 25 days of the month, which is more days wet than dry.

August ranks 7 of 12 in Alappuzha: past the worst of the year but short of January, which is the month to book if the dates are open.

Rain on 25 of the month's 31 days, 10 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 87% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average August reaches 30 °C; the day barely swings — 1.8 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 29.3 °C and the coldest night fell to 24.3 °C, and the wettest single day dropped 142 mm — roughly 42% of the month's rain in one day.

August is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest August on record still delivered 649 mm against 158 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 336 mm average is a reasonable planning figure, not a promise.

Wind is light at 15.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 87% is the real story though — it is the number that decides how the day feels, not the 27.5 °C.

How August sits in the year

Temperatures hold steady either side: 27.6 °C in July, 27.5 here, 27.9 in September. Nothing about the timing within the month matters much.

Daylight in August

Alappuzha sits close enough to the equator that daylight barely moves all year — 12.4 hours in August, against a range of just 1.1 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 27.2 °C in August — warm enough that the water offers no relief from the heat. The sea peaks at 30.2 °C in April and bottoms out at 27.2 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Alappuzha versus nearby

If Alappuzha is one option among several, the nearby comparison is worth making. Munnar is a better bet in August — 7.6 °C cooler, 1 day less rain. Teni is close enough to be a coin toss — 3.9 °C warmer, 8 days less rain.

So: August is a compromise. January is 27 points better and is what Alappuzha is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Alappuzha

See all twelve months in Alappuzha, or where else to go in August.