YEARLY HIGH
5.0409 JPY
YEARLY LOW
4.1778 JPY
YEARLY AVERAGE
4.5569 JPY

2025 THB to JPY Performance & Market Timing Review

Analysis of key historical highlights and timing insights for 2025

During 2025, the THB to JPY exchange rate experienced significant fluctuation. The market reached its absolute peak on December 22, valuing the pair at 5.0409. Conversely, the yearly low was recorded on April 8, dropping to 4.1778.

This high-to-low spread represents a total annual volatility of 0.8631 JPY. From a start-to-finish perspective, comparing the January average rate of 4.5710 to the December average rate of 4.9492, the exchange rate registered a net change of 8.27% (reflecting a strengthening trend).

Looking at year-over-year peak valuations, the 2025 high of 5.0409 was up 8.74% compared to the 2024 peak of 4.6357, indicating shifts in long-term support levels.

Transfer Payout Power Comparison

Comparing the value generated converting 250,000 THB based on timing:

Yearly Peak High 1,260,215 JPY
2024 Average 1,074,565 JPY
Yearly Trough Low 1,044,450 JPY
Transaction Impact: A difference of 215,765.71 JPY purely based on transaction execution date.

Trend Visualization

Monthly average fluctuations over the course of 2025.

5.0167
4.2066
JanuMarcMayJulySeptNove

THB to JPY 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 4.4295, compared to 4.6844 in the second half (H2: Jul–Dec). This shows that the rate was stronger in the second half (Jul–Dec) by a margin of 0.2549 points.

H1 Avg (Jan–Jun) 4.4295
H2 Avg (Jul–Dec) 4.6844

Volatility Range Comparison

Volatility

The most volatile month in 2025 was October, with a trading range of 0.2436 JPY (High: 4.7785 / Low: 4.5349). On the other end, August was the most stable month, with a tight range of 0.0573 JPY (High: 4.5814 / Low: 4.5241).

October Spread (Volatile) ±0.2436
August Spread (Stable) ±0.0573

Growth Streaks & Declines

Trends

Between April and December, the exchange rate recorded its longest consecutive growth streak of the year, climbing for 8 straight months. Conversely, the sharpest month-over-month decline occurred between March and April, when the average rate fell by 0.1406 points.

Longest Streak 8 Mo.
Sharpest MoM Drop -0.1406

Same-Month Historical Baseline

YoY Baseline

Comparing the current year's strongest month average (December 2025: 4.9492) against the same month in 2024 (average: 4.5101), the exchange rate shifted by +0.4391 (+9.74%).

2025 Avg (December) 4.9492
2024 Avg (December) 4.5101

Monthly Breakdown

Statistical summary for each calendar month.

Month High Low Average
January 4.6490 4.4951 4.5710
February 4.5905 4.3991 4.4900
March 4.4605 4.3364 4.4146
April 4.3821 4.1778 4.2741
May 4.4415 4.3342 4.3916
June 4.4608 4.3811 4.4357
July 4.6050 4.4179 4.5342
August 4.5814 4.5241 4.5516
September 4.6803 4.5540 4.6266
October 4.7785 4.5349 4.6470
November 4.8843 4.7145 4.7977
December 5.0409 4.8403 4.9492