Byron Bay flips the script on “bad weather” unlike anywhere else in Australia. A gray, drizzly afternoon here feels nothing like a washout in, say, Melbourne—more like the sky is doing you a favor by keeping the crowds away from your favorite headland walk. Whether you’re planning a trip or already live here, understanding the local weather patterns helps you make the most of every season, from chasing sun at the Cape to sheltering in style when the clouds roll in.

Daytime temperatures: mid to high 20s°C · Overnight lows: 10-13°C · Sun protection needed: 9am to 2:20pm · Peak today: 24°C · Overnight drop: 14°C

Quick snapshot

1Confirmed facts
2What’s unclear
  • Precise ranking of rainfall amounts by month requires cross-referencing multiple BOM tables
  • Long-range forecast details for April 2026 onward not yet published
3Timeline signal
  • February 2026 temperatures running slightly above January averages (28.9°C vs 28°C) (Bureau of Meteorology)
  • Hottest March reading so far: 31.4°C on March 6, 2026 (Yahoo Weather)
4What’s next
  • BOM provides week-to-three-month outlooks for temperature and rainfall (Bureau of Meteorology)
  • April brings average max 25°C, min 16°C—transition month before winter cools set in (Bureau of Meteorology)

The following table summarizes the key climate parameters sourced from Bureau of Meteorology official data and secondary climate databases.

Label Value
Forecast source Bureau of Meteorology
Day highs mid to high 20s°C
Night lows 10-13°C
UV protection 9am-2:20pm
Today peak 24°C
January avg max 28°C
July avg max 20°C
Warmest month avg temp 23.8°C (January)
Coldest month avg temp 15.0°C (July)
Sea temp range 20°C (Aug) to 26°C (Jan)

What is the rainiest month in Byron Bay?

Rainfall in Byron Bay spreads across the entire year, but the summer months from December through March shoulder the heaviest falls. The Bureau of Meteorology’s Cape Byron AWS station (station 058216) records rainfall every month, though summer tropical systems—especially during cyclone season—drive the bulk of annual precipitation. (Bureau of Meteorology)

Average rainfall by month

The data shows a clear wet-dry split. January typically averages around 140-160mm, while February often receives similar amounts—the first 14 days of February 2026 already logged 30.6mm, suggesting the month was tracking toward its typical range. (Bureau of Meteorology) Winter months (June-August) are noticeably drier, with June and July seeing some of the lowest monthly totals. September stands out as relatively drier at around 52mm, though it’s still not bone-dry. (Weathermondo)

Climate patterns

Byron Bay’s climate classification as humid subtropical means rain can arrive any time, but summer is when you’ll want to keep an eye on the BOM forecast for tropical cyclone activity. Weather2Travel notes that the tropical cyclone season affects Byron Bay with some months recording elevated rainfall due to these systems. (Weather2Travel) The implication: if you’re planning outdoor activities in December through March, build in a rain contingency—things can change fast when a system tracks down the coast.

The catch

February 2026 temperatures ran slightly warmer than typical for the “warmest” month: mean max of 28.9°C against the January average of 28°C. That’s not a huge swing, but it reflects the variability summer throws at this coast.

What is the best time of year to go to Byron Bay?

Most visitors gravitate toward the shoulder seasons—April through May or September through November—when the weather plays nicer and the summer crowds haven’t yet descended. But “best” depends on what you’re after. (Climates to Travel)

Peak season details

December through February is the busiest stretch, coinciding with school holidays and summer weather. January brings the warmest sea temperatures (around 26°C) and the longest days, with sun protection recommended from 9am to 2:20pm according to BOM forecasts. (Bureau of Meteorology) Heat and humidity run medium to high in January and February, dipping to low by March and April. (Weather2Travel)

Shoulder months advantages

April and May offer a sweet spot: average highs still push into the mid-20s (April averages 25°C for the high, 16°C for the low), the summer drench risk drops, and accommodation prices soften. September through November brings warming days without the full heat intensity of December-January, though expect some variability as the season shifts. The trade-off: spring can bring occasional rain, and Easter timing varies wildly year to year, sometimes falling in March, sometimes in April.

The upshot

For most visitors, April-May or September-October hits the balance: comfortable temperatures, lower rain risk, and fewer people crowding the main beach.

What to do in Byron Bay when it’s raining?

Rain in Byron Bay isn’t a dealbreaker—it’s actually an opportunity. The town has layered on enough indoor culture over the years that a gray day won’t ruin your itinerary. (Weather2Travel)

Indoor activities

The local food and café scene becomes the obvious fallback, but there’s more than just riding out a shower at a coffee shop. Galleries along Byron’s arts strip stay open, and the hinterland villages (Bangalow, Mullumbimby) offer boutique shopping and local markets even when the coast is damp. The Cape Byron Lighthouse visitor center has covered viewing areas if you want to watch the storm roll in from the easternmost point of the Australian mainland.

Rainy day options

For a more structured rainy day, the nearby towns offer diverting options: the Bangalow Historical Society museum, local wellness studios running yoga or sound bath sessions, or the many wellness retreats that operate rain or shine. Many visitors report that the fog and mist over the hills can actually make the hinterland scenery more dramatic than on a clear day—worth factoring in if your schedule allows flexibility.

Is it cold in Byron Bay?

“Cold” is relative, but by Australian coastal standards, Byron Bay stays mild through winter. July—the coldest month—averages around 20°C during the day and drops to roughly 11-12°C at night, according to data from Weather2Travel and Climate-Data.org. (Weather2Travel) (Climate-Data.org)

Temperature averages

Let’s put numbers to the seasons: January peaks at a mean of 23.8°C overall, with daytime highs typically around 28-29°C. July sits much cooler, with average daytime maximums near 19-20°C and overnight lows dipping to 9°C. (Weather2Travel) (Climate-Data.org) The sea cools to around 20°C in August, so swimming feels brisk even when the air is comfortable.

Winter lows

Current BOM forecasts show overnight temperatures falling to between 9 and 13°C, with daytime readings reaching the mid to high 20s. (Bureau of Meteorology) If you’re visiting in June through August, pack a light jacket for evenings but leave the heavy winter gear at home—you won’t need it. The pattern: mornings feel crisp, the sun warms things up by mid-morning, and evenings cool back down quickly after sunset.

Why this matters

If you’re coming from southern Australia (Melbourne, Adelaide, or further south), Byron Bay’s “winter” will feel almost summer-like to you. Pack for mild conditions, not cold.

Byron Bay weather forecast

For the most current conditions, the Bureau of Meteorology’s dedicated Byron Bay forecast page is your starting point. It pulls data from Cape Byron AWS (station 058216) and provides day-by-day outlooks updated regularly. (Bureau of Meteorology)

7-day forecast

BOM’s 7-day forecast for Byron Bay typically shows daytime maximums in the mid to high 20s, with overnight lows around 10-13°C in the cooler months. The forecast also flags sun protection timing—this changes slightly across seasons, but BOM generally advises protection from 9am to around 2:20pm depending on the UV index. (Bureau of Meteorology)

14-day outlook

Beyond the 7-day window, BOM’s climate outlook page offers forecasts extending to three months out, covering temperature and rainfall probability. (Bureau of Meteorology) Secondary sources like AccuWeather and The Weather Network provide extended outlooks that compare current forecasts against historical norms. (The Weather Network) Note that accuracy drops beyond the 7-day range—use these longer outlooks for planning, not packing.

Tomorrow’s conditions

For near-term planning, the BOM hourly breakdown gives a granular view: cloud cover, wind direction and speed, chance of rain, and temperature through the day. Wind tends to come from the east-northeast in summer, shifting to southwest and west in winter. (Bureau of Meteorology) The April 14, 2026 observation showed wind gusts reaching 70km/h from the east during a rain event, so coastal breezes can amp up during unsettled weather.

The climate of Byron Bay is humid subtropical, with very mild winters (from June to August) and hot, rainy summers (from December to March).

Climates to Travel (Climate Analyst)

Overnight temperatures falling to between 9 and 13 with daytime temperatures reaching the mid to high 20s. Sun protection recommended from 9:00 am to 2:20 pm.

— Bureau of Meteorology (Official Forecaster)

Related reading: Average Income Australia · Puffing Billy Railway Guide

When checking Byron Bay’s forecasts for best visit times and rainy activities, many travelers consult a Byron Bay accommodation guide to match stays with the climate.

Frequently asked questions

What is the 10-day weather forecast for Byron Bay?

The Bureau of Meteorology provides the most reliable 10-day outlook for Byron Bay via its dedicated forecast page, pulling data from Cape Byron AWS station 058216. Daily maximums typically sit in the mid to high 20s, with overnight lows around 10-13°C in cooler months. Check the hour-by-hour breakdown for wind, rain chance, and UV index on the day you need it.

What is the 21-day weather outlook for Byron Bay?

BOM’s climate outlook page covers temperature and rainfall probability for the next one to three months. While the 7-day forecast remains the most reliable, the 21-day window gives a general sense of whether the period is likely to run warmer, cooler, or wetter than average. Secondary sources like The Weather Network offer monthly comparisons with historical data.

What is Byron Bay weather like in January?

January is the warmest month in Byron Bay. Average daytime maximums hit around 28°C, with overnight lows near 20°C. Sea temperature sits at approximately 26°C, making swimming comfortable. However, January falls squarely in the wet season—expect higher rainfall than winter months, and keep an eye on BOM for tropical cyclone watches. Heat and humidity run medium to high.

What is the UV index in Byron Bay?

BOM’s Byron Bay forecast includes a sun protection window, generally 9:00 am to around 2:20 pm, though this shifts slightly through the year. The UV index in summer can be extreme, so sunscreen, a hat, and shade are essential during the protection window. Even on overcast days, UV can still be high—don’t skip protection just because the sun is obscured.

Where to check official Byron Bay weather?

The Bureau of Meteorology’s Byron Bay forecast page is the primary source. Daily observations come from Cape Byron AWS (station 058216), and monthly climate averages are available on the BOM climate averages tables. For extended outlooks, the BOM Climate Ahead page provides week-to-three-month projections.

Does Byron Bay get much rain?

Yes—rainfall spreads across the year, with summer (December through March) receiving the heaviest falls due to tropical cyclones and monsoon influences. Monthly totals in the wettest months can exceed 140mm. The driest months are June through August, though it rarely goes completely dry. Even in winter, brief rain events are possible. Check BOM’s daily observations and forecast for real-time rainfall data.

For visitors from southern Australia, Byron Bay’s winter will feel mild—pack light layers, not heavy coats. For those coming from cooler northern hemisphere climates, the summer heat and humidity may be the bigger adjustment. The town handles rain gracefully: indoor options abound, and the hinterland often looks its best under a dramatic sky.