Lake Ohakuri – current water temperature and swimming conditions
This page provides information about the current water temperature at Lake Ohakuri in Waikato 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
The water temperature in Lake Ohakuri today is 14°C.
Water Temperature in Lake Ohakuri: 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 Ohakuri have been gradually cooling over the past month, with a further drop recorded during the last week.
According to our forecast, the water temperature in Lake Ohakuri will be 14.9°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 |
|---|---|---|---|
| May 7 | 13.7°C | 15.0°C | |
| May 8 | 13.7°C | 15.0°C | |
| May 9 | 16.1°C | 15.0°C | |
| May 10 | 16.1°C | 15.0°C | |
| May 11 | 14.8°C | 15.0°C | |
| May 12 | 14.8°C | 15.0°C | |
| May 13 | 14.5°C | 15.0°C | |
| May 14 | 14.2°C | 15.0°C | |
| May 15 | 13.9°C | 15.0°C | 13.9°C |
| May 16 | 15.0°C | 14.0°C | |
| May 17 | 15.0°C | 14.2°C | |
| May 18 | 15.0°C | 14.3°C | |
| May 19 | 15.0°C | 14.5°C | |
| May 20 | 15.0°C | 14.6°C | |
| May 21 | 15.0°C | 14.7°C | |
| May 22 | 15.0°C | 14.9°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 | 15°C | 20°C | 24°C |
| February | 15°C | 20°C | 24°C |
| March | 16°C | 20°C | 23°C |
| April | 14°C | 18°C | 21°C |
| May | 12°C | 15°C | 18°C |
| June | 10°C | 13°C | 15°C |
| July | 9°C | 12°C | 14°C |
| August | 9°C | 11°C | 13°C |
| September | 9°C | 12°C | 14°C |
| October | 9°C | 12°C | 15°C |
| November | 12°C | 15°C | 18°C |
| December | 13°C | 18°C | 22°C |
Lake Ohakuri: Weather Forecast
May 15
May 16
May 17
May 18
May 19
Location & Local Information
Lake Ohakuri, in the Waikato Region between Taupō and Rotorua, is a hydro lake formed on the Waikato River. Set within a sheltered inland landscape, its water temperature reflects both river inflows and warm central North Island summers. In winter, surface temperatures are generally around 9–13°C. During spring, the lake gradually warms to approximately 13–18°C as air temperatures increase. In summer, particularly in January and February, sheltered bays and near-shore areas can reach about 19–24°C on hot, settled days, while deeper water remains slightly cooler. By autumn, temperatures usually ease back to between 14 and 18°C. Wind and changes in river flow can cause short-term fluctuations.
Swimming Conditions
Swimming is allowed at various accessible shoreline areas and reserves around Lake Ohakuri, and it is a popular activity during the warmer months. The most comfortable conditions are typically in mid to late summer when water temperatures exceed 19°C and winds are light. However, swimmers should be mindful of boat traffic and variable depths in some sections. It is advisable to use recognised access points and check local water quality information before entering the lake. Choosing calm weather conditions helps ensure a safe and enjoyable freshwater swimming experience.