Lake Rerewhakaaitu – current water temperature and swimming conditions

This page provides information about the current water temperature at Lake Rerewhakaaitu in Bay of Plenty Region. Here you can view recent temperature trends on a 30-day chart, check typical monthly water temperature ranges, and compare today’s reading with historical averages for this date. A 7-day water temperature forecast, local weather conditions, and an overview of swimming suitability are also included.

Current Water Temperature

13.8°C

Today

13.6°C

Yesterday

12.8°C

A Week Ago

The water temperature in Lake Rerewhakaaitu today is 14°C.

Water Temperature in Lake Rerewhakaaitu: Daily Trends, Historical Records, and Forecast

⚠️ Lake temperatures between 10 and 15°C are cold but can be manageable for short swims on sunny, warm days. Shallow areas may feel slightly warmer, while deeper sections remain cold and slow to warm up. Most swimmers keep sessions brief, and wetsuits are often used for comfort. Wind and cooler air temperatures can quickly reduce how pleasant the swim feels.

Water Temperature Over the Last 30 Days

Water temperatures in Lake Rerewhakaaitu have been on a steady rise over the past month and have continued to climb over the last week.

According to our forecast, the water temperature in Lake Rerewhakaaitu will be 11.8°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Water Temperature Data

Date	Current	Average	Forecast
Jul 2	13.8°C	11.5°C
Jul 3	13.1°C	11.5°C
Jul 4	12.8°C	11.5°C
Jul 5	12.8°C	11.5°C
Jul 6	12.6°C	11.5°C
Jul 7	12.6°C	11.5°C
Jul 8	13.6°C	11.5°C
Jul 9	13.6°C	11.5°C
Jul 10	13.8°C	11.5°C	13.8°C
Jul 11		11.5°C	13.5°C
Jul 12		11.5°C	13.2°C
Jul 13		11.5°C	12.9°C
Jul 14		11.5°C	12.7°C
Jul 15		11.5°C	12.4°C
Jul 16		11.5°C	12.1°C
Jul 17		11.5°C	11.8°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual lake water temperatures may differ from the reported values by several degrees, particularly during periods of strong winds or rapid weather changes. Wind can mix surface and deeper layers in a lake, bringing cooler water to the surface, while shallow areas may warm more quickly under direct sunlight. Air temperature, sunshine, and cloud cover strongly influence how quickly a lake heats up or cools down. These factors can lead to noticeable temperature variations across different parts of the lake.

Our forecast is based on a proprietary mathematical model that considers real-time lake temperature observations, historical trends, seasonal cycles, wind strength and direction, and region-specific air temperature. To enhance accuracy, we also incorporate data from nearby monitored locations and comparable lakes within New Zealand.

Monthly Water Temperature Range (Min, Max & Average)

Month	Today	Yesterday	A Week Ago
January	16°C	20°C	24°C
February	16°C	21°C	25°C
March	17°C	21°C	24°C
April	15°C	18°C	21°C
May	13°C	16°C	18°C
June	10°C	13°C	16°C
July	9°C	12°C	14°C
August	9°C	12°C	14°C
September	9°C	13°C	16°C
October	10°C	14°C	17°C
November	12°C	16°C	19°C
December	15°C	19°C	23°C

Lake Rerewhakaaitu: Weather Forecast

July 10

3°C / 11°C

partly cloudy

rain: 6% | wind: 30 km/h

July 11

4°C / 10°C

overcast

rain: 0% | wind: 15 km/h

July 12

1°C / 11°C

overcast

rain: 18% | wind: 5 km/h

July 13

8°C / 12°C

dense intensity drizzle

rain: 71% | wind: 25 km/h

July 14

9°C / 13°C

dense intensity drizzle

rain: 86% | wind: 26 km/h

Location & Local Information

Lake Rerewhakaaitu, in the Bay of Plenty Region south of Rotorua, is a relatively shallow rural lake surrounded by farmland and low hills. Its water temperature reflects the inland North Island climate and moderate depth. In winter, surface temperatures are generally around 9–13°C. During spring, the lake gradually warms to approximately 13–17°C as air temperatures increase. In summer, particularly in January and February, shallow near-shore areas can reach about 19–24°C on warm, settled days, while deeper sections remain slightly cooler. By autumn, temperatures usually ease back to between 14 and 18°C. Wind and rainfall can influence short-term surface conditions and clarity.

Swimming Conditions

Swimming is allowed at suitable access points around Lake Rerewhakaaitu, and it can be pleasant during the warmer months when water temperatures exceed 19°C. The most comfortable conditions are typically in mid to late summer on calm days with light winds. However, as with many rural lakes, water quality can vary depending on nutrient levels and seasonal conditions, particularly after heavy rain. Swimmers should check current water quality information before entering the lake. Choosing recognised access areas and settled weather helps ensure a safer and more enjoyable freshwater swimming experience.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Rerewhakaaitu?

The water temperature in Lake Rerewhakaaitu today is 14°C.

What is the water temperature in Lake Rerewhakaaitu during the summer months?

In summer, water temperatures in Lake Rerewhakaaitu at Wangi Wangi typically range from 15°C to 25°C.

Is it possible to swim in Lake Rerewhakaaitu (Bay of Plenty Region)?

Yes — people do swim in Lake Rerewhakaaitu and summer water temperatures are often pleasant, though it can be much cooler outside summer and some shallow areas can heat up or cool down quickly. Before you jump in, check Bay of Plenty Regional Council recreational water‑quality alerts, obey local signage and landowner access rules, and avoid swimming during cyanobacteria or E. coli advisories.