Thames — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Thames (New Zealand). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Thames help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Thames in the Tasman Sea today is 14°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Water temperature in Thames today is lower than both a week ago and a month ago. Currently, the sea water at this location is slightly cooler than average for this day in previous years.
According to our forecast, Water temperature in Thames will be 14.7°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 29 | 14.5°C | 16.8°C | |
| JUN 30 | 14.4°C | 15.8°C | |
| JUL 1 | 14.7°C | 15.8°C | |
| JUL 2 | 14.4°C | 15.5°C | |
| JUL 3 | 14.1°C | 15.0°C | |
| JUL 4 | 14.1°C | 14.8°C | |
| JUL 5 | 14.1°C | 15.0°C | |
| JUL 6 | 13.9°C | 15.5°C | |
| JUL 7 | 14.1°C | 15.5°C | 14.1°C |
| JUL 8 | 15.5°C | 14.2°C | |
| JUL 9 | 15.3°C | 14.3°C | |
| JUL 10 | 15.0°C | 14.4°C | |
| JUL 11 | 15.3°C | 14.5°C | |
| JUL 12 | 15.3°C | 14.6°C | |
| JUL 13 | 15.0°C | 14.6°C | |
| JUL 14 | 15.3°C | 14.7°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Thames, on the Firth of Thames at the base of the Coromandel Peninsula, sits in a sheltered coastal environment where sea temperatures follow a clear seasonal cycle. In summer (December–February) surface waters commonly reach about 18–22 °C, providing the warmest conditions of the year. During autumn (March–May) temperatures typically fall to roughly 16–20 °C as the sea cools, while winter (June–August) brings the coldest conditions with averages near 12–14 °C. Spring (September–November) is transitional, with temperatures generally between 13 and 18 °C. Local tidal flats and shallow bays can warm more quickly in calm weather but also cool rapidly with southerly winds, so short-term variation around these seasonal ranges is normal.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 18°C | 20°C | 24°C |
| February | 19°C | 21°C | 24°C |
| March | 18°C | 21°C | 23°C |
| April | 17°C | 19°C | 22°C |
| May | 16°C | 18°C | 21°C |
| June | 14°C | 16°C | 18°C |
| July | 13°C | 15°C | 17°C |
| August | 13°C | 15°C | 16°C |
| September | 12°C | 14°C | 17°C |
| October | 13°C | 15°C | 18°C |
| November | 15°C | 17°C | 21°C |
| December | 16°C | 19°C | 23°C |
* Click on a month to view detailed water temperature data.
Thames: Weather Forecast
July 8
July 9
July 10
July 11
Location, Beaches & Local Information
Nearby Beaches & Facilities
Kuranui Bay Reserve
Windy Point
Whakatete Bay
Ngarimu Bay
Swimming Conditions
Swimming around Thames is influenced by that temperature pattern and by the mix of sheltered estuary shoreline and more open coastlines a short drive away. In summer most people find the water comfortable for bathing, kayaking or paddleboarding without thermal protection, and sheltered coves and sandy beaches are popular for family outings. Outside peak summer many swimmers prefer shorter dips or wetsuits once sea temperatures drop below about 16 °C, and exposed beaches on the Coromandel side can be choppier and cooler than sheltered spots. Water clarity and currents vary with tides and recent rainfall, so visitors planning a beach holiday typically choose sheltered beaches for calmer swimming and check local conditions before heading out.