**Trader consensus at 100% for a 10°C high reflects confirmed observational data from Wellington stations showing a daily maximum of 10°C amid cool, rainy, and windy southeasterly conditions on September 7, 2026.** Persistent southerly airflow has advected cooler maritime air over the region, maintaining cloud cover and light rain that suppressed daytime warming below typical early-spring baselines. Official monitoring networks, including those aligned with MetService standards, align on this threshold, with hourly readings peaking near 10°C (50°F) under fresh to strong winds. While model consensus and real-time telemetry strongly support resolution at this level, minor uncertainty persists around exact station maxima or post-processing adjustments, though such revisions are rare once the observation period closes.