September · Central Java

Gerdu in September

Go score
91 Excellent
Average high
32°
Sea temperature
29°
Quick answers
How warm is it in Gerdu in September?
Expect around 32°C (90°F) in the afternoon and 22°C (71°F) at night.
Can you swim in the sea in Gerdu 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 Gerdu in September?
For many visitors, yes — about 32°C (90°F) by day and still 22°C (71°F) at night (humidity 71%). Midday heat is best spent indoors or by the water.
September · Go score 91/100

Is September a good time to visit Gerdu?

Yes, September is a good time to visit Gerdu (go score 91/100), 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 · #4 of 12 months

Average high32°C (90°F)+1° vs. August
Average low22°C (71°F)
Sea temperature29°C (83°F)very warm
Rain days4 days40 mm
Sunshine per day9.7 h81%
Daylight12.1 h
Humidity71%
Wind15 km/h

Gerdu in September: the month in numbers

A typical September day in Gerdu peaks at 32°C (90°F); at night the thermometer drops to about 22°C (71°F). There is little difference from August; October is similar at 32°C (89°F). About 4 days see some rain; the monthly total is 40 mm. The sun shines for about 9 h 42 min a day out of 12 h 6 min of daylight. 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 (85°F).

Local prices overall: very cheap.

The sun is up from 05:36 to 17:35 on the 1st and from 05:20 to 17:29 on the last day. Days get 10 min longer.

Gerdu or nearby? The same month in neighbouring destinations

How the neighbours compare in September: Lasem (9 km) is much the same; Rembangan, 20 km away, runs 1.5 °C (3 °F) warmer; Juwana, 41 km away, runs 1 °C (2 °F) warmer.

DestinationDistanceHighLowRain daysSeaGo score
Gerdu—32°22°429°91
Lasem9 km33°22°429°86
Rembangan20 km34°23°429°82
Juwana41 km33°23°429°84
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Frequently asked questions

Is September a good time to visit Gerdu?

Yes, September is a good time to visit Gerdu (go score 91/100), 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 Gerdu in September?

In September, Gerdu averages a high of 32°C (90°F) and a low of 22°C (71°F), with 40 mm of rain on about 4 days.

Gerdu: 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