Tomarata Lake – current water temperature and swimming conditions
This page provides information about the current water temperature at Tomarata Lake in Auckland 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 Tomarata Lake today is 17°C.
Water Temperature in Tomarata Lake: Daily Trends, Historical Records, and Forecast
⚠️ A lake temperature of 15 to 20°C is considered cool to comfortable for swimming in Australia. On warm days with light winds, this range allows for relaxed swimming, especially in shallow or sheltered areas. Comfort depends strongly on air temperature and sunshine, as cooler or overcast weather can still make the water feel chilly. This range is common during spring and early summer.
Water Temperature Over the Last 30 Days
Water temperatures in Tomarata Lake 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 Tomarata Lake will be 14.6°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 |
|---|---|---|---|
| May 7 | 17.5°C | 14.3°C | |
| May 8 | 19.5°C | 14.3°C | |
| May 9 | 19.9°C | 14.3°C | |
| May 10 | 19.9°C | 14.3°C | |
| May 11 | 19.9°C | 14.3°C | |
| May 12 | 19.9°C | 14.3°C | |
| May 13 | 17.7°C | 14.3°C | |
| May 14 | 17.7°C | 14.3°C | |
| May 15 | 17.0°C | 14.3°C | 17.0°C |
| May 16 | 14.3°C | 16.7°C | |
| May 17 | 14.3°C | 16.3°C | |
| May 18 | 14.3°C | 16.0°C | |
| May 19 | 14.3°C | 15.7°C | |
| May 20 | 14.3°C | 15.3°C | |
| May 21 | 14.3°C | 15.0°C | |
| May 22 | 14.3°C | 14.6°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 | 17°C | 21°C | 25°C |
| February | 17°C | 22°C | 26°C |
| March | 15°C | 19°C | 23°C |
| April | 12°C | 16°C | 20°C |
| May | 9°C | 13°C | 17°C |
| June | 6°C | 11°C | 16°C |
| July | 5°C | 10°C | 14°C |
| August | 8°C | 12°C | 16°C |
| September | 8°C | 13°C | 17°C |
| October | 11°C | 15°C | 19°C |
| November | 13°C | 17°C | 21°C |
| December | 16°C | 20°C | 24°C |
Tomarata Lake: Weather Forecast
May 15
May 16
May 17
May 18
May 19
Location & Local Information
Tomarata Lake, in the Auckland Region north of Warkworth, is a shallow dune lake surrounded by farmland and native vegetation. Its modest depth means water temperatures respond quickly to seasonal air changes. In winter, surface temperatures are generally around 11–15°C. During spring, the lake gradually warms to approximately 15–19°C as days become milder. 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 16 and 20°C. Wind can mix the shallow water, influencing surface warmth and clarity.
Swimming Conditions
Swimming is allowed at Tomarata Lake, and it is a popular local spot during the warmer months. The most comfortable conditions are typically in mid to late summer when water temperatures exceed 20°C and winds are light. However, as with many shallow lakes, water quality can vary depending on rainfall, nutrient levels and seasonal algal growth. Swimmers should use established access points and check current water quality information before entering the water. Choosing calm weather conditions and avoiding swimming after heavy rain helps ensure a safer and more enjoyable freshwater experience.