Monthly weather averages & travel planning

Asia › 🇯🇵 Japan › Osaka
Updated: March 2026
October is a fair time to visit Osaka (5/10). With 8 daily sunshine hours and only 10 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 10th sunniest of the year in Osaka. Culture-focused travellers and those who prefer lighter crowds will find October a practical choice, with prices running lower than peak August without sacrificing all the good weather. November offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Osaka's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
The single most important thing to know about visiting Osaka in October: conditions are genuinely cooperative, with 22°C highs and only 10 wet days making this one of the more straightforward months to plan around. Precipitation totals 156mm for the month, spread across roughly 10 days, and 8 sunshine hours per day give you a reliable window for outdoor plans.
22°C
72°F
Avg High
15°C
59°F
Avg Low
10 days
156 mm total
Rain Days
8h
per day avg
Sunshine
70%
Moderate
Humidity
The 7°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 70%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 6 this month, classed as moderate. Sunscreen is a sensible precaution for extended outdoor time, particularly at midday. Winds are calm at an average 14 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 72°F average high, 59°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Osaka in October means dressing for 22°C days and 15°C evenings. A light cotton tee with a casual overshirt works well at 22°C, the overshirt doubles as a layer for air-conditioned venues. Evening temperatures settle at 15°C, a modest 7°C drop that a light cardigan or denim jacket covers. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. A compact foldable umbrella weighs almost nothing and earns its keep across 10 potential rainy days. For temple and religious site visits, carry a lightweight scarf or sarong to cover shoulders and knees, required at most major sites across the region.
Local tip: Temple and religious site visits require covered shoulders and knees in most of Osaka's heritage areas. A lightweight scarf or sarong weighs almost nothing and solves the problem instantly.
October has no major festivals or public holidays in Osaka, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 22°C average highs and 10 rainy days
October brings the first meaningful shift toward cooler conditions in Osaka, as the sun angle drops and day length shortens. Temperatures averaging 22°C by day and 15°C overnight are still comfortable by most standards, but the trend is clearly downward. At 35 degrees north latitude, autumn light has a particular quality: lower in the sky and warmer in tone, it gives the city a photogenic quality quite different from summer. Conditions remain excellent for outdoor activity, and crowds thin compared to the summer peak. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Osaka in October
October ranks 10th sunniest of the year in Osaka, with an average 8 daily sunshine hours. The driest months are January, December, and February. August is the hottest month (32°C avg high); January is the coolest (8°C). From here, temperatures fall 6°C into November. Compared to last month (September: 28°C high, 12 rain days), October is cooler and drier. October is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 8°C | 1°C | 6 | 8h | View |
| February | 9°C | 1°C | 8 | 8h | View |
| March | 13°C | 4°C | 11 | 9h | View |
| April | 18°C | 9°C | 10 | 9h | View |
| May | 23°C | 15°C | 10 | 10h | View |
| June | 26°C | 19°C | 13 | 9h | View |
| July | 30°C | 23°C | 14 | 10h | View |
| August | 32°C | 24°C | 12 | 11h | View |
| September | 28°C | 21°C | 12 | 9h | View |
| October | 22°C | 15°C | 10 | 8h | View |
| November | 16°C | 9°C | 8 | 8h | View |
| December | 11°C | 4°C | 7 | 8h | View |
January
6 rain days, 8h sun
February
8 rain days, 8h sun
March
11 rain days, 9h sun
April
10 rain days, 9h sun
May
10 rain days, 10h sun
June
13 rain days, 9h sun
July
14 rain days, 10h sun
August
12 rain days, 11h sun
September
12 rain days, 9h sun
October
10 rain days, 8h sun
November
8 rain days, 8h sun
December
7 rain days, 8h sun
Cities within 500 km with comparable weather conditions
Data Sources for Osaka
Climate normals represent 30-year averages (1991-2020). Individual years may vary.