When to go · Fontana
Fontana in May
Good month. Outside the best window (Oct–Apr (mild weather, marathon season)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.
Key facts
- Verdict
- Good
- Temperature
- 28°C (82°F)82°F (28°C) / 13°C (55°F)55°F (13°C)
- average high / low
- Rain days
- 2
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Outside the best window (Oct–Apr (mild weather, marathon season)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.
Is another month better than May?
May is rated good. These months rate higher:
- OctoberGreatInside Fontana's best window: Oct–Apr (mild weather, marathon season).
- NovemberGreatInside Fontana's best window: Oct–Apr (mild weather, marathon season).
- DecemberGreatInside Fontana's best window: Oct–Apr (mild weather, marathon season).
- JanuaryGreatInside Fontana's best window: Oct–Apr (mild weather, marathon season).
Weather in May
- FontanaHighs around 28 °C (82 °F), lows around 13 °C (55 °F), rain on about 2 daysHighs around 82 °F (28 °C), lows around 55 °F (13 °C), rain on about 2 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Memorial Day big impact
Last Monday of May · United States
Start of summer; roads and beaches full.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.
Compare two months
Weather, crowds and prices for any two months in Fontana, side by side.
Verdict
May: Good
Jan: Great (better)
Daytime high
May: 28 °C (82 °F)82 °F (28 °C)
Jan: 19 °C (66 °F)66 °F (19 °C)
Night low
May: 13 °C (55 °F)55 °F (13 °C)
Jan: 7 °C (45 °F)45 °F (7 °C)
Rain days
May: 2 (better)
Jan: 6
Crowds
May: Medium
Jan: Low
Prices
May: Medium
Jan: Low
Festivals listed
May: 1
Jan: 0
May: Outside the best window (Oct–Apr (mild weather, marathon season)). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.
January: Inside Fontana's best window: Oct–Apr (mild weather, marathon season).
Fontana: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.