2025 ISK to IDR Historical Review
A comprehensive breakdown of exchange rate performance throughout the year 2025.
2025 ISK to IDR Performance & Market Timing Review
Analysis of key historical highlights and timing insights for 2025
During 2025, the ISK to IDR exchange rate experienced significant fluctuation. The market reached its absolute peak on September 28, valuing the pair at 138.0908. Conversely, the yearly low was recorded on February 2, dropping to 114.8480.
This high-to-low spread represents a total annual volatility of 23.2428 IDR. From a start-to-finish perspective, comparing the January average rate of 115.9599 to the December average rate of 132.0067, the exchange rate registered a net change of 13.84% (reflecting a strengthening trend).
Looking at year-over-year peak valuations, the 2025 high of 138.0908 was up 16.32% compared to the 2024 peak of 118.7189, indicating shifts in long-term support levels.
Comparing the value generated converting 5,000 ISK based on timing:
Trend Visualization
Monthly average fluctuations over the course of 2025.
ISK to IDR Seasonal Trends & Volatility Analysis
A structured review of seasonal halves, trading extremes, consecutive streaks, and historical baselines.
Seasonal Halves (H1 vs H2)
SeasonalThe average exchange rate in the first half of the year (H1: Jan–Jun) was 123.8614, compared to 133.5481 in the second half (H2: Jul–Dec). This shows that the rate was stronger in the second half (Jul–Dec) by a margin of 9.6867 points.
Volatility Range Comparison
VolatilityThe most volatile month in 2025 was March, with a trading range of 8.2120 IDR (High: 126.1253 / Low: 117.9133). On the other end, January was the most stable month, with a tight range of 1.9359 IDR (High: 117.2305 / Low: 115.2946).
Growth Streaks & Declines
TrendsBetween January and April, the exchange rate recorded its longest consecutive growth streak of the year, climbing for 3 straight months. Conversely, the sharpest month-over-month decline occurred between October and November, when the average rate fell by 4.2597 points.
Same-Month Historical Baseline
YoY BaselineComparing the current year's strongest month average (September 2025: 135.7319) against the same month in 2024 (average: 111.9742), the exchange rate shifted by +23.7577 (+21.22%).
Monthly Breakdown
Statistical summary for each calendar month.
| Month | High | Low | Average |
|---|---|---|---|
| January | 117.2305 | 115.2946 | 115.9599 |
| February | 118.4684 | 114.8480 | 116.1860 |
| March | 126.1253 | 117.9133 | 122.4156 |
| April | 133.4912 | 125.7253 | 130.1783 |
| May | 128.8029 | 126.2090 | 127.3591 |
| June | 134.1743 | 128.4845 | 131.0692 |
| July | 135.2398 | 131.3332 | 133.5854 |
| August | 134.0299 | 131.6085 | 132.7227 |
| September | 138.0908 | 133.2781 | 135.7319 |
| October | 137.0964 | 132.5596 | 135.7507 |
| November | 133.4628 | 130.0817 | 131.4910 |
| December | 133.9909 | 129.9822 | 132.0067 |