LKR black market rate on Aug 31, 2026: 321.09 per USD
On Monday, August 31, 2026, the US dollar traded at about 321.09 LKR on Sri Lanka's parallel (black) market at the close of observations. The day opened at 313.38 LKR, reached a high of 330.28 and a low of 309.78, a trading range of 20.5 LKR (6.62%).
Across 288 observations, the average price to buy dollars was 325.61 LKR and the average price received when selling dollars was 331.15 LKR. Over the session the Sri Lankan Rupee weakened against the dollar (+2.46% from open to close).
Official rate vs black market rate on Aug 31, 2026
The official exchange rate published for Sri Lanka on this date was 327.81 LKR per USD. The parallel-market close of 321.09 LKR therefore implied a premium of -2.05% over the official rate — a discount to the official rate, which is unusual and often reflects thin or one-sided quotes.
How Aug 31, 2026 compares
Compared with the previous observed day (Aug 30, 2026, close 313.38 LKR), the rate moved +2.46%.
One week earlier (Aug 24, 2026) the close was 327.5 LKR, so the weekly change was -1.96%.
Thirty days earlier (Aug 1, 2026) the close was 329.49 LKR, a -2.55% move over the month.
How this daily figure is produced
ETCurrency samples Sri Lanka's USD/LKR parallel market throughout the day from peer-to-peer stablecoin order books and, where available, community submissions. Each sample is filtered for outliers and aggregated into a single buy and sell quote; the figures above are the first, highest, lowest and last of those aggregated quotes for Aug 31, 2026 (UTC).
USDT peer-to-peer prices closely track cash dollar prices in most parallel markets but are not identical to them: payment-method fees, merchant margins and local demand for stablecoins can all add a few tenths of a percent.
Frequently asked questions
- What was the dollar to Sri Lankan Rupee black market rate on Aug 31, 2026?
- The USD to LKR parallel market rate closed at approximately 321.09 LKR per US dollar on Monday, August 31, 2026, after trading between 309.78 and 330.28 LKR.
- How much did the LKR move against the dollar that day?
- From an open of 313.38 to a close of 321.09 LKR, the parallel rate moved +2.46% on Aug 31, 2026.
- What was the gap between the official and black market LKR rate on that date?
- The official rate was 327.81 LKR per USD versus a parallel close of 321.09 LKR, a premium of -2.05%.
- Was the LKR black market rate higher or lower than the day before?
- Higher: the previous observed close was 313.38 LKR on Aug 30, 2026, a change of +2.46%.
Figures are aggregated parallel-market observations for Sri Lanka in UTC and are indicative only; they are not a quote to trade. See the full USD → Sri Lankan Rupee history or today's live rate.