June brings 34°C daytime highs, 6mm of precipitation across about 1 wet days and 14.6 hours of daylight — best for beach days, swimming and reliable sunshine. The strongest run of the year is April to June. January is the quietest month: quiet and local, and still good for low-angle light and quiet and local.
Long-run climate normals for Zion. Month ratings compare months within Zion only — they are not a ranking of Zion against other destinations, and they are not a forecast for a specific year.
Last updated: · Live forecast data refreshes hourly.
| Best month | June — Beach days, Swimming, Reliable sunshine |
| Best 3-month window | April–June |
| Quietest month | January — Quiet and local |
| Driest month | June — 6mm |
| Wettest month | March — 44mm |
| Warmest / coolest | July 38°C / February 11°C |
| Seasonality | Fairly even across the year |
| Annual rainfall | 384mm over roughly 36 rain days |
January gets roughly 550% more precipitation than June — 39mm against 6mm. That difference, more than temperature, is what changes how a day here feels.
Zion swings 27°C between July (38°C) and February (11°C) — the month you pick changes what you pack more than where you go.
June gives you 14.6 hours of daylight against just 9.4 in December — a 5-hour difference in how much you can actually fit into a day.
June is the driest month at 6mm across roughly 1 wet days, while March peaks at 44mm.
October is almost as good as June, but usually quieter and cheaper. If your dates are flexible, it is the easier trip.
Zion stays fairly consistent all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Ratings compare months within Zion, not against destinations worldwide: five stars means the best time to be here, not that Zion beats anywhere else. Tags describe what the conditions actually suit.
| Month | Rating | High / Low | Precipitation | Wet days | Sun | Daylight | Best for |
|---|---|---|---|---|---|---|---|
| January | ★★☆☆☆ | 11°C / 0°C | 39mm | 5 | 5h | 9.7h | Low-angle light · Quiet and local |
| February | ★★☆☆☆ | 11°C / 0°C | 41mm | 5 | 5h | 10.6h | Low-angle light · Quiet and local |
| March | ★★☆☆☆ | 15°C / 3°C | 44mm | 5 | 3h | 11.8h | Hiking · Cycling · Spring greenery |
| April | ★★★★★ | 21°C / 8°C | 28mm | 3 | 4h | 13h | Hiking · Cycling · Spring greenery |
| May | ★★★★★ | 28°C / 14°C | 13mm | 2 | 6h | 14h | Beach days · Swimming |
| June | ★★★★★ | 34°C / 19°C | 6mm | 1 | 11h | 14.6h | Beach days · Swimming · Reliable sunshine |
| July | ★★★★☆ | 38°C / 22°C | 18mm | 2 | 11h | 14.3h | Beach days · Swimming · Reliable sunshine |
| August | ★★☆☆☆ | 38°C / 22°C | 27mm | 3 | 5h | 13.4h | Beach days · Swimming · Quiet and local |
| September | ★★★☆☆ | 34°C / 19°C | 14mm | 2 | 5h | 12.2h | Beach days · Swimming |
| October | ★★★★★ | 28°C / 14°C | 18mm | 2 | 10h | 11h | Beach days · Swimming · Reliable sunshine |
| November | ★★★★★ | 21°C / 8°C | 22mm | 3 | 9h | 10h | Hiking · Cycling · Reliable sunshine |
| December | ★★★☆☆ | 15°C / 3°C | 28mm | 3 | 5h | 9.4h | Hiking · Cycling · Low-angle light |
| You are planning | Pick | Why |
|---|---|---|
| Sun & beach days | June | 11h daily sunshine, 34°C highs and only 1 rain days. |
| City walking & sightseeing | April | 21°C highs with 13h of daylight — long days without heat fatigue. |
| Photography & light | June | 11h of sun and 14.6h daylight give the widest window for golden-hour work. |
| Value & fewer crowds | May | Scores 81/100 — close to peak conditions but outside the busiest window. |
| Cooler-weather travel | December | 15°C highs and 3°C nights suit anyone who dislikes heat. |
Each month in Zion is described from long-run climate normals and then rated relative to the other eleven months in the same city. A five-star January in a cold destination means January is one of the best times to be there — not that it beats a Mediterranean summer.
| Factor | Weight | What it measures |
|---|---|---|
| Temperature | Described | Average daytime high and overnight low for the month, shown as measured rather than judged. |
| Precipitation | Described | Monthly millimetres and wet-day count, labelled as snow or rain/snow where temperatures make that the likely phase. |
| Sunshine & daylight | Described | Average daily sunshine hours and astronomical daylight length at mid-month, from the city’s latitude. |
| “Best for” tags | Derived | Applied only when the conditions genuinely support the activity — snow depth-friendly cold for skiing, 13–24°C and low rain risk for hiking, dark evenings at high latitude for aurora. A month with few strong use cases gets fewer tags rather than padded ones. |
| Star rating | Relative | Ranks the month against the other eleven months in the same city. Never a comparison between cities. |
Figures are long-run climate averages, not a forecast for a specific year. Where a month lacks sourced rainfall or humidity, the value is modelled from temperature range and rain frequency.
June is the best all-round month in Zion: 34°C highs, 6mm of precipitation and 14.6 hours of daylight, which suits beach days, swimming and reliable sunshine. The strongest three-month window is April to June.
January — 11°C highs, 39mm of precipitation over roughly 5 days and 9.7 hours of daylight. It is the cheapest and least crowded time to go, and it still works for low-angle light and quiet and local.
June is the driest month at 6mm over about 1 rain days, against 44mm in March. Across the year Zion records around 384mm.
Yes — conditions in Zion stay fairly even all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Daylight ranges from 9.4 hours in December to 14.6 hours in June, calculated from the city's latitude.