In short: Sarnia Estate is a low-elevation tea estate in Sri Lanka's coastal lowlands, operated by Van Rees Ceylon Ltd and certified by the Ethical Tea Partnership.
Sarnia Estate is a tea estate located in the lowlands of Sri Lanka, at approximately 14 metres above sea level in the No.280 Dam St region. The estate is operated by Van Rees Ceylon Ltd and produces black tea. It holds certification from the Ethical Tea Partnership.
Terroir & Climate
At just 14 metres above sea level, Sarnia Estate sits in Sri Lanka's coastal lowland zone, far below the country's better-known high-elevation districts. Estates at this altitude typically experience warm, humid conditions year-round, with limited diurnal temperature variation. Such environments generally promote vigorous vegetative growth and shorter plucking cycles, though the leaf chemistry tends to differ markedly from that developed at higher elevations.
Low-elevation estates in Sri Lanka's coastal belt are often subject to consistent warmth and monsoonal rainfall patterns, which can support continuous cropping throughout much of the year. The lack of cooler night temperatures means that estates at this elevation do not usually benefit from the slower, more deliberate leaf maturation that characterises mid- and high-grown teas. Instead, the terroir typically favours volume and robust, straightforward character over the nuanced complexity associated with altitude.
Tea Produced
Sarnia Estate produces black tea. Low-elevation black teas from Sri Lanka's coastal regions typically yield a cup that is bold, brisk and full-bodied, with a straightforward malt-and-grain character. These teas tend to lack the delicate floral or citrus notes found in high-grown Ceylon varieties, but they often offer strength, colour and reliable astringency—qualities that have historically made low-grown Sri Lankan teas popular for blending in breakfast-style products and for markets favouring robust infusion.
Operator
The estate is operated by Van Rees Ceylon Ltd, a company active in Sri Lanka's tea sector. Van Rees Ceylon operates at least one other estate recorded in this directory, indicating a multi-site footprint in the country's lowland tea industry.
Certifications & Ethics
Sarnia Estate is certified by the Ethical Tea Partnership, an industry body that works with tea producers to promote improved working conditions, environmental stewardship and community welfare. For buyers, Ethical Tea Partnership certification signals a commitment to third-party auditing of labour practices and adherence to a progressive set of social and environmental standards, offering a degree of supply-chain transparency and accountability for workers and surrounding communities.
Location & Neighbouring Estates
Sarnia Estate lies at 6.9368, 79.8601 in No.280 Dam St, Sri Lanka. Its 14 m elevation is the 391st highest of 421 estates we map in Sri Lanka. The nearest estates in the TeaTrade directory, measured point-to-point from these coordinates, are:
- Uda Radella Tea Estate — 1.9 km away · Colombo
- Ceylon Tea Marketing Pvt. Ltd - Factory — 3.0 km away · Sedawatte Road
- Empire Teas (Pvt) Ltd — 7.1 km away · Angoda
- Mabroc Teas (Pvt) Ltd — 8.3 km away · New Hunupitiya Road
- Sunils — 31 km away · Western Province
Estates at a Similar Altitude to Sarnia Estate
Elevation shapes how slowly leaf matures, so we match Sarnia Estate (14 m) with estates within 150 m of its height that are not its neighbours. Each is shown with its own 2025 climate. Sarnia Estate recorded 2,828 mm in 2025, 16% more than the 2,446 mm average across these estates: at the same height, local weather and exposure matter as much as elevation.
| Estate | Where | Elevation | Rain 2025 | Mean high |
|---|---|---|---|---|
| Dhamai Tea Estate | Moulvibazar, Bangladesh | 14 m | 2,869 mm | 30.1 °C |
| Dilkhusha Tea Estate | Moulvibazar, Bangladesh | 14 m | 2,869 mm | 30.1 °C |
| Zhejiang Camel Transworld Organic Foods Co. Ltd. - 310041 Hangzhou | 218 Ti Yu Chang Road, China | 14 m | 1,470 mm | 24.3 °C |
| Talapoya Tea Estate | Cherooty Road, India | 14 m | 3,550 mm | 30.2 °C |
| Zehjiang Tea Group | 218 Ti Yui Chang Road, China | 13 m | 1,470 mm | 24.3 °C |
Sarnia Estate Compared with Sri Lanka
In Sri Lanka, Sarnia Estate is drier than 60% of the others by 2025 rainfall; lower than 93% of the others by elevation; warmer than 73% of the others by daytime temperature. The table sets Sarnia Estate against the 420 other estates we map in Sri Lanka, so you can see whether it is typical for its country or an outlier.
| Measure | Sarnia Estate | Country median | Country range |
|---|---|---|---|
| Elevation | 14 m | 298 m | 6 to 1,962 m |
| Annual rainfall (2025) | 2,828 mm | 3,080 mm | 2,018 to 4,839 mm |
| Mean daily high | 29.8 °C | 28.8 °C | 18.9 to 31.3 °C |
| Mean overnight low | 24.2 °C | 21.7 °C | 12.4 to 24.3 °C |
Observed Climate at Sarnia Estate (2025)
ERA5 reanalysis data modelled for Sarnia Estate’s coordinates recorded 2,828 mm of precipitation across calendar year 2025. The wettest month was November (556 mm) and the driest was February (49 mm). Daytime highs averaged 29.8 °C and overnight lows 24.2 °C over the year; May was the warmest month and January the coolest.
| Metric | 2025 value |
|---|---|
| Annual precipitation | 2,828 mm |
| Wettest month | November (556 mm) |
| Driest month | February (49 mm) |
| Mean daily high | 29.8 °C |
| Mean overnight low | 24.2 °C |
Frequently Asked Questions
Where is Sarnia Estate located?
Sarnia Estate is in No.280 Dam St, Sri Lanka, at coordinates 6.9368, 79.8601, at an elevation of about 14 metres.
Who operates Sarnia Estate?
Sarnia Estate is operated by Van Rees Ceylon Ltd, according to public supply-chain records.
What type of tea does Sarnia Estate produce?
Sarnia Estate is recorded as producing black tea.
What certifications does Sarnia Estate hold?
Sarnia Estate is recorded as holding the following certification(s): Ethical Tea Partnership.
How much rain does Sarnia Estate receive?
ERA5 reanalysis data for the estate's coordinates recorded 2,828 mm of precipitation in 2025, peaking in November (556 mm).
How does Sarnia Estate compare with estates at a similar elevation?
Sarnia Estate recorded 2,828 mm in 2025, 16% more rain than the 2,446 mm average of estates at a similar elevation.
Data sources: public supply-chain disclosures (Ethical Tea Partnership member lists, Rainforest Alliance certificate holders and retailer supplier disclosures); climate figures are ERA5 reanalysis modelled for the estate’s coordinates via Open-Meteo (calendar year 2025); coordinates and elevations from geocoded records. Spotted an error? Email [email protected].
