The reliable window runs 7 Feb to 22 Apr, when the floor of good outdoor time holds near 10 hours a day (no rain, no oppressive heat, no biting cold). The single most reliable two weeks are 4 Mar – 17 Mar, at a floor of 9 hours a day. The stretch to avoid is 8 May to 10 Jan, when the floor falls away — the limit is rain. These are floors (held in at least 24 of the last 25 years), not averages — and resolved to the week, and to the hour.
Reliable outdoor hours per day (8am–10pm), week by week. The green band is the reliable window; the red band is the stretch to avoid; the gold marker is the single best fortnight. Source: Forelore analysis of 25 years of NASA & Copernicus satellite record.
| Window | Dates | Reliable floor | What to know |
|---|---|---|---|
| Peak fortnight | 4 Mar – 17 Mar | ~9 h/day | The single most reliable two weeks. |
| Reliable window | 7 Feb – 22 Apr | ~10 h/day | The season to plan an outdoor ceremony in. |
| Falling edge | 23 Apr – 7 May | turning | Turns over within weeks — book only with a backup. |
| Avoid | 8 May – 10 Jan | low | The limit is rain. |
| Recovering edge | 11 Jan – 6 Feb | rising | Improving but still variable week to week. |
“Reliable floor” = good outdoor hours (8am–10pm) held in at least 24 of the last 25 years. Dates are the observed edges of each window, resolved to the week.
A wedding happens at a time, not just a date. At Queenstown the reliable hours shift across the day: the afternoon is the most reliable time to be outdoors — reliably good about 67% of the block — while the evening (18–22) is the weakest. As the season turns, the afternoon holds best. An afternoon ceremony is the most reliable choice.
Share of each daytime block reliably good, week by week. For a specific date, Forelore resolves this to the half-hour — the Inside-the-Day audit.
Every guide names “the best month.” But a reliable window doesn’t end on a month boundary — it turns over inside the month, which is exactly where a monthly average misleads. We resolve it to the week — and, for a specific date, to the hour.
An average hides the year the heat or the rain showed up — the year an outdoor plan fails. Forelore reports the floor: the level of reliably-good outdoor time held in at least 24 of the last 25 years. It’s an audit of the observed record, not a forecast.
Get a free, date-specific reliability check — for Queenstown or anywhere. We resolve your date to the hour and email you the read.
Check your date — free →The reliable window runs 7 Feb to 22 Apr, and the single most reliable two weeks are 4 Mar – 17 Mar (a floor of about 9 hours a day).
8 May to 10 Jan — the floor falls away and the limit is rain.
The afternoon — the most reliable block year-round (about 67% reliable) versus about 49% for the evening. An afternoon ceremony is the most reliable choice.
To the week, and to the hour of day — the edges fall inside the month, which is exactly where monthly averages mislead.
From 25 years of NASA GPM IMERG (rain) and Copernicus ERA5-HEAT UTCI (thermal) satellite record. A conservative floor held in at least 24 of the last 25 years — not a typical-year average, and not a forecast.