Our verdict
The best time to visit Lake Arrowhead is October
In summer, temperatures can reach as high as 29℃ (84℉) in the middle of the day. The average low temperatures in winter float around -9℃ (16℉), while the coldest it gets down to is about -12℃ (10℉).
If you’re a sun-chaser and want to visit Lake Arrowhead when the days are longest, you should visit in August. To stay dry, avoid travelling to Lake Arrowhead in October – It’s the wettest month of the year.
If you want to learn everything you need to know about the best times to travel to Lake Arrowhead, the weather and stats by month and so much more, make sure you keep reading. Once you’re ready, we’ve included a bunch of our favourite online booking tools to help you find the best deals on flights, accommodation and anything else you’ll need for your trip. Happy reading!
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Lake Arrowhead seasons
Before you continue, it’s important to know when the seasons are in Lake Arrowhead as they might be different to yours depending on where in the world you’re travelling from. Lake Arrowhead is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Lake Arrowhead
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Lake Arrowhead for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Lake Arrowhead climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Lake Arrowhead for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Lake Arrowhead in January
- Average temperature: -5℃ (23℉)
- Average high temperature: -2℃ (29℉)
- Average low temperature: -9℃ (16℉)
- Average humidity: 83%
- Average sunny days: 17 days
- Average rainfall: 58mm (2") over 8 days
- Average snow days: 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Lake Arrowhead in February
- Average temperature: -4℃ (25℉)
- Average high temperature: -1℃ (31℉)
- Average low temperature: -8℃ (17℉)
- Average humidity: 83%
- Average sunny days: 15 days
- Average rainfall: 59mm (2") over 7 days
- Average snow days: 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Lake Arrowhead in March
- Average temperature: 0℃ (32℉)
- Average high temperature: 4℃ (39℉)
- Average low temperature: -4℃ (25℉)
- Average humidity: 82%
- Average sunny days: 14 days
- Average rainfall: 61mm (2") over 11 days
- Average snow days: 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Lake Arrowhead in April
- Average temperature: 6℃ (44℉)
- Average high temperature: 10℃ (51℉)
- Average low temperature: 2℃ (35℉)
- Average humidity: 77%
- Average sunny days: 13 days
- Average rainfall: 77mm (3") over 14 days
- Average snow days: 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Lake Arrowhead in May
- Average temperature: 13℃ (55℉)
- Average high temperature: 17℃ (62℉)
- Average low temperature: 7℃ (45℉)
- Average humidity: 79%
- Average sunny days: 15 days
- Average rainfall: 60mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in May, make sure you pack a warm jacket or coat.
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Lake Arrowhead in June
- Average temperature: 16℃ (61℉)
- Average high temperature: 21℃ (69℉)
- Average low temperature: 11℃ (53℉)
- Average humidity: 82%
- Average sunny days: 14 days
- Average rainfall: 67mm (3") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in June, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Lake Arrowhead in July
- Average temperature: 20℃ (68℉)
- Average high temperature: 25℃ (76℉)
- Average low temperature: 15℃ (59℉)
- Average humidity: 81%
- Average sunny days: 14 days
- Average rainfall: 47mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in July, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Lake Arrowhead in August
- Average temperature: 20℃ (67℉)
- Average high temperature: 25℃ (76℉)
- Average low temperature: 15℃ (58℉)
- Average humidity: 80%
- Average sunny days: 15 days
- Average rainfall: 56mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Lake Arrowhead in September
- Average temperature: 16℃ (61℉)
- Average high temperature: 21℃ (69℉)
- Average low temperature: 11℃ (52℉)
- Average humidity: 79%
- Average sunny days: 17 days
- Average rainfall: 38mm (2") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in September, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
Lake Arrowhead in October
- Average temperature: 10℃ (50℉)
- Average high temperature: 14℃ (57℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 80%
- Average sunny days: 15 days
- Average rainfall: 85mm (3") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in October, make sure you pack a warm jacket or coat.
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Lake Arrowhead in November
- Average temperature: 4℃ (39℉)
- Average high temperature: 7℃ (45℉)
- Average low temperature: 0℃ (33℉)
- Average humidity: 76%
- Average sunny days: 17 days
- Average rainfall: 77mm (3") over 10 days
- Average snow days: 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Lake Arrowhead in December
- Average temperature: -2℃ (29℉)
- Average high temperature: 1℃ (34℉)
- Average low temperature: -5℃ (24℉)
- Average humidity: 80%
- Average sunny days: 15 days
- Average rainfall: 83mm (3") over 9 days
- Average snow days: 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Lake Arrowhead in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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