Koro i
September · Central Java

Koro in September

Go score
87 Excellent
Average high
33°
Sea temperature
29°
Quick answers
How warm is it in Koro in September?
In September Koro sees typical highs of 33°C (91°F) and lows of 22°C (71°F).
Can you swim in the sea in Koro in September?
Yes — with water at about 29°C (83°F), swimming is pleasant in September. Expect roughly 28°C (83°F) in the first days and 29°C (84°F) by the last.
Is it too hot in Koro in September?
For many visitors, yes — about 33°C (91°F) by day and still 22°C (71°F) at night (humidity 72%). Midday heat is best spent indoors or by the water.
September · Go score 87/100

Is September a good time to visit Koro?

Yes, September is a good time to visit Koro (go score 87/100), though the weather is even better in July–August.

The sea is warm enough for swimming (about 29°C (83°F)).

Good forBeach & swimming
Climate

Go score: Excellent · #5 of 12 months

Average high33°C (91°F)+1° vs. August
Average low22°C (71°F)
Sea temperature29°C (83°F)very warm
Rain days4 days72 mm
Sunshine per day9.5 h78%
Daylight12.1 h
Humidity72%
Wind15 km/h

Koro in September: the month in numbers

Expect daytime temperatures near 33°C (91°F) in Koro in September, falling to around 22°C (71°F) after dark. There is little difference from August, and October stays much the same (33°C (91°F)). About 4 days see some rain; the monthly total is 72 mm. With 12 h 6 min of daylight, about 9 h 30 min of it is sunshine on an average day. The sea is pleasant at 29°C (83°F), moving from 28°C (83°F) to 29°C (84°F) through the month, and it peaks in November at 30°C (86°F).

Local prices overall: very cheap.

The sun is up from 05:37 to 17:36 on the 1st and from 05:21 to 17:31 on the last day. Days get 11 min longer.

Koro or nearby? The same month in neighbouring destinations

Nearby destinations are about as warm in September: Juwana (18 km), Rembangan (23 km), Pati (23 km).

DestinationDistanceHighLowRain daysSeaGo score
Koro—33°22°429°87
Juwana18 km33°23°429°84
Rembangan23 km34°23°429°82
Pati23 km33°22°429°84

September falls in the dry season in Indonesia. Month by month

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Frequently asked questions

Is September a good time to visit Koro?

Yes, September is a good time to visit Koro (go score 87/100), though the weather is even better in July–August. The sea is warm enough for swimming (about 29°C (83°F)).

What is the weather like in Koro in September?

In September, Koro averages a high of 33°C (91°F) and a low of 22°C (71°F), with 72 mm of rain on about 4 days.

Koro: sea water temperature

In September: 29°C (83°F) — very warm.

Water temperature details →

Updated: Climate normals: WorldClim 2.1 (1970–2000) · CRU CL 2.0 (1961–1990) About this data: Climate normals