Lake Ōmāpere – current water temperature and swimming conditions
This page provides information about the current water temperature at Lake Ōmāpere in Northland 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 Ōmāpere today is 11°C.
Water Temperature in Lake Ōmāpere: 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 Ōmāpere 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 Ōmāpere will be 11.6°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 |
|---|---|---|---|
| Aug 19 | 15.7°C | 11.7°C | |
| Aug 20 | 15.7°C | 11.7°C | |
| Aug 21 | 15.0°C | 11.7°C | |
| Aug 22 | 15.2°C | 11.7°C | |
| Aug 23 | 15.3°C | 11.7°C | |
| Aug 24 | 15.3°C | 11.7°C | |
| Aug 25 | 10.9°C | 11.7°C | |
| Aug 26 | 10.9°C | 11.7°C | |
| Aug 27 | 10.9°C | 11.7°C | 10.9°C |
| Aug 28 | 11.7°C | 11.0°C | |
| Aug 29 | 11.7°C | 11.1°C | |
| Aug 30 | 11.7°C | 11.2°C | |
| Aug 31 | 11.7°C | 11.3°C | |
| Sep 1 | 11.7°C | 11.4°C | |
| Sep 2 | 11.7°C | 11.5°C | |
| Sep 3 | 11.7°C | 11.6°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 | 14°C | 20°C | 25°C |
| February | 15°C | 20°C | 25°C |
| March | 14°C | 18°C | 21°C |
| April | 11°C | 16°C | 20°C |
| May | 8°C | 13°C | 18°C |
| June | 7°C | 12°C | 16°C |
| July | 4°C | 9°C | 14°C |
| August | 6°C | 10°C | 14°C |
| September | 8°C | 12°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 Ōmāpere: Weather Forecast
August 28
August 29
August 30
August 31
September 1
Location & Local Information
Lake Ōmāpere, in the Northland Region near Kaikohe, is the largest lake in Northland and sits within a warm, subtropical climate. As a relatively shallow lake, its water temperature responds quickly to seasonal air conditions. In winter, surface temperatures are generally around 12–16°C, remaining milder than many lakes further south. During spring, the lake gradually warms to approximately 16–20°C. In summer, particularly in January and February, shallow near-shore areas can reach about 21–26°C on hot, settled days. By autumn, temperatures usually ease back to between 17 and 21°C. Wind and rainfall can cause short-term variations, especially in exposed sections.
Swimming Conditions
Swimming is allowed at Lake Ōmāpere, but it is not widely promoted as a main swimming destination. While summer temperatures can feel comfortable when above 20°C, water quality may vary due to nutrient levels and occasional algal blooms during prolonged warm periods. Swimmers should use recognised access points and check current water quality information before entering the lake. Choosing calm days and shallow areas helps improve comfort and safety. For many visitors, the lake is valued as a scenic and cultural site rather than primarily for recreational swimming.