May in Boise, ID: shoulder season for golf — playable with smart tee time selection. Best tee times: mid-morning through early afternoon.
| Average May Weather | |
|---|---|
| Avg daily high | 71°F |
| Avg daily low | 47°F |
| Rainy days | 12 / mo |
| Avg peak wind | 12.6 mph |
May reshapes how you approach the tee sheet in Boise. With 12 precipitation days — tied for third-wettest on the calendar — the question isn't whether rain will show up this month, it's which mornings it won't. That reality pushes smart golfers toward early-week bookings and flexibility windows rather than locking in a Saturday tee time three weeks out.
The upside is real: highs reach 71F and the 24-degree daily swing means a 9 AM start can still feel brisk at 47F before warming into genuinely comfortable afternoon conditions. Wind sits at 12.6 mph peak, just barely into the moderate range, so it factors into club selection without dominating play. Think of May as a month where the conditions are good enough to reward planning but variable enough to punish rigidity.
With 12 rain days spread across the month, mid-week morning slots — especially Tuesday through Thursday — give you the best odds of catching a dry window without competing against weekend demand. Booking within a 5-to-7-day forecast window, rather than weeks ahead, lets you compare days and pivot if a wet system is tracking in. See how conditions rate hour by hour on our playability scale.
April was drier by 3 precipitation days and 10 degrees cooler on average, making May the warmer but wetter trade-off heading into summer. June cuts the rain count dramatically — dropping 5 days down to just 7 — while adding 11 degrees to the high, which is why many local golfers consider it the clear upgrade. May sits in that in-between zone: better scoring temperatures than April, but without June's reliability.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for Boise, ID for the current playability rating, hourly wind, temperature, and the recommended tee time window.
← April in Boise, ID • June in Boise, ID →
May averages 12 precipitation days in Boise, making it the third-wettest month of the year, tied with February. That doesn't mean full-day washouts on all 12, but it does mean interrupted rounds are a real possibility. Building flexibility into your schedule — rather than committing to a single fixed tee time — pays off this month.
Golf in Boise in May is playable and often enjoyable, with average highs at 71F and winds in the low-to-moderate range at 12.6 mph peak. The tradeoff versus June is a notable one: June drops to just 7 rain days and climbs to 82F highs, giving it a clear edge in reliability. If your schedule allows a choice, June offers more predictable conditions; if May is your window, focus on mid-week morning tee times when dry stretches are easiest to catch.