Weather in Jepara in August

A good month. August works. It is not the peak, but nothing about it fights you. Highs average 30 °C, lows 25.5 °C, and rain falls on 5 days — nothing in the month is working against you.

August is the highest-scoring month of the twelve. The nearest rival is July, and the month at the other end of the year is November.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30 °C days and 25.5 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 17 days top 30 °C — hot spells arrive, but they break; the day barely swings — 4.5 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 31.9 °C and the coldest night fell to 23.4 °C.

This is the volatile part. August rainfall has ranged from 0 mm to 129 mm across the twenty years measured — a 129 mm spread around an average of 26 mm. The average is real but almost no individual August looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 13.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 72%.

How August sits in the year

Temperatures hold steady either side: 29.4 °C in July, 30 here, 30.7 in September. Nothing about the timing within the month matters much.

Daylight in August

Jepara sits close enough to the equator that daylight barely moves all year — 11.9 hours in August, against a range of just 0.8 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 28.1 °C in August — warm enough that the water offers no relief from the heat. The sea peaks at 29.8 °C in April and bottoms out at 28.1 °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

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, September is the trade worth considering — 9 points weaker on weather, and materially quieter.

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

August in Jepara versus nearby

If Jepara is one option among several, the nearby comparison is worth making. Semarang is the weaker option in August — 3.9 °C warmer, the same number of rain days. Surabaya is close enough to be a coin toss — 2.4 °C warmer, 3 days less rain.

So: August is the answer for Jepara. If it is booked out or priced out, July is the next best thing at 2 points behind, and November is the month to keep off the shortlist.

Every month in Jepara

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