{"destination_name":"Costa Rica — Guanacaste","destination_slug":"costa-rica-guanacaste","month_name":"March","month_num":3,"buckets":[{"half":1,"half_label":"Early March","pct_clear":77,"avg_high_f":95,"n_days":120},{"half":2,"half_label":"Late March","pct_clear":63,"avg_high_f":96,"n_days":128}],"month_pct_clear":70,"avg_high_f":96,"total_n":248,"source":"Open-Meteo ERA5 archive-api, 8 full years (2018–2025), daily temperature_2m_max / precipitation_sum / weathercode","temporal_coverage":"2018/2025","note":"Historical averages only. Not a forecast.","page_url":"https://sunny.day/costa-rica-guanacaste/march","month_hub_url":"https://sunny.day/warm-in/march"}