2026 JPY to IDR Historical Review

YEARLY HIGH

114.5171 IDR

YEARLY LOW

105.8732 IDR

YEARLY AVERAGE

109.7790 IDR

2026 JPY to IDR Performance & Market Timing Review

Analysis of key historical highlights and timing insights for 2026

During 2026, the JPY to IDR exchange rate experienced significant fluctuation. The market reached its absolute peak on August 1, valuing the pair at 114.5171. Conversely, the yearly low was recorded on March 29, dropping to 105.8732.

This high-to-low spread represents a total annual volatility of 8.6439 IDR. From a start-to-finish perspective, comparing the January average rate of 107.2546 to the December average rate of 114.5171, the exchange rate registered a net change of 6.77% (reflecting a strengthening trend).

Looking at year-over-year peak valuations, the 2026 high of 114.5171 was down 4.11% compared to the 2025 peak of 119.4237, indicating shifts in long-term support levels.

Transfer Payout Power Comparison

Comparing the value generated converting 500,000 JPY based on timing:

Yearly Peak High 57,258,551 IDR

2025 Average 55,084,048 IDR

Yearly Trough Low 52,936,587 IDR

Transaction Impact: A difference of 4,321,963.72 IDR purely based on transaction execution date.

Trend Visualization

Monthly average fluctuations over the course of 2026.

115.3062

105.8366

JanuMarcMayJuly

JPY to IDR Seasonal Trends & Volatility Analysis

A structured review of seasonal halves, trading extremes, consecutive streaks, and historical baselines.

Seasonal Halves (H1 vs H2)

Seasonal

The average exchange rate in the first half of the year (H1: Jan–Jun) was 108.8171, compared to 112.6647 in the second half (H2: Jul–Dec). This shows that the rate was stronger in the second half (Jul–Dec) by a margin of 3.8475 points.

H1 Avg (Jan–Jun) 108.8171

H2 Avg (Jul–Dec) 112.6647

Volatility Range Comparison

Volatility

The most volatile month in 2026 was January, with a trading range of 3.7408 IDR (High: 109.6232 / Low: 105.8824). On the other end, August was the most stable month, with a tight range of 0.0000 IDR (High: 114.5171 / Low: 114.5171).

January Spread (Volatile) ±3.7408

August Spread (Stable) ±0.0000

Growth Streaks & Declines

Trends

Between March and May, the exchange rate recorded its longest consecutive growth streak of the year, climbing for 2 straight months. Conversely, the sharpest month-over-month decline occurred between February and March, when the average rate fell by 1.8874 points.

Longest Streak 2 Mo.

Sharpest MoM Drop -1.8874

Same-Month Historical Baseline

YoY Baseline

Comparing the current year's strongest month average (August 2026: 114.5171) against the same month in 2025 (average: 110.5858), the exchange rate shifted by +3.9313 (+3.55%).

2026 Avg (August) 114.5171

2025 Avg (August) 110.5858

Monthly Breakdown

Statistical summary for each calendar month.

Month	High	Low	Average
January	109.6232	105.8824	107.2546
February	110.2381	107.1173	108.5131
March	107.4770	105.8732	106.6257
April	108.5126	106.3630	107.4996
May	112.0629	110.4753	111.7007
June	113.3425	110.3032	111.3092
July	112.5774	109.3757	110.8122
August	114.5171	114.5171	114.5171