Ōmura in Spring

In spring (March, April and May), Ōmura sees average daytime highs around 17°C and overnight lows near 13°C, with 453 mm of rain over about 32 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs climb from about 12°C in early March to 23°C by late May. The sky is clear or mostly clear about 31% of the time across spring, and the air most often feels dry.

Spring is Ōmura's 2nd-best season to visit on our travel score. For the whole year in context, see Ōmura's year-round climate.

Avg daytime high: 17°C; 3rd-warmest season
Avg overnight low: 13°C
Rainfall: 453 mm; 32 wet days
Avg wind: 11 km/h
Travel score: 5.2; 2nd-best season
Months: Mar · Apr · May

← Winter Ōmura year-round climate Summer →

Spring Summer Fall Winter

Temperature in Ōmura in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 12°C in early March to 23°C by late May.

A typical spring day in Ōmura reaches about 17°C and drops to 13°C overnight. The warmest of the three months is May, the coolest March.

How spring really feels in Ōmura

Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ōmura weather by month

How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	9° / 6°	65	7.9	0.5	10.1	2.1
Feb	10° / 6°	83	8.4	0.3	10.8	2.4
Mar	13° / 9°	131	11	0	11.7	3.7
Apr	18° / 13°	150	10.8	0	12.8	5.5
May	22° / 17°	173	10.6	0	13.7	6.4
Jun	25° / 21°	381	16	0	14.1	5.6
Jul	28° / 25°	309	17	0	14	4.9
Aug	30° / 26°	179	15	0	13.2	4.7
Sep	27° / 23°	188	11.5	0	12.2	6.3
Oct	22° / 18°	110	7	0	11.2	7.3
Nov	17° / 13°	94	7.7	0	10.3	5.8
Dec	12° / 8°	76	7.7	0	9.9	3.3

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time across spring.

Chance of precipitation in Spring

Any precipitation

Ōmura gets around 453 mm of rain over 32 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Spring

Winds average 11 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 12 min in early March to 14 hours by late May. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 4.8 kWh/m².

Planning a trip in spring

Hazard calendar for Ōmura

In seasonPeak

In spring, Ōmura overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Ōmura sits in the Pacific typhoon belt; the season peaks July–October.

Ōmura's rainy season runs May–September, when most of the year's rain falls.

Pacific typhoon

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is spring a good time to visit Ōmura?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

5.2

Sightseeing

2nd-best month of the year

2.0

Beach & pool

3rd-best month of the year

spring is a reasonable time to visit Ōmura for sightseeing.

What to pack for Ōmura in Spring

From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In spring, Ōmura sees daytime highs around 17°C and nights near 13°C. Worth packing: a warm layer, rain gear and sun protection. About 32 days see rain.

a warm layerrain gearsun protection

Sea temperature near Ōmura in Spring

The nearest coast averages about 17°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 27 to Nov 29 — about 6.1 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	16	15	16	17	19	22	25	27	26	24	21	19
Comfort	Cool	Cool	Cool	Cool	Cool	Refreshing	Warm	Warm	Warm	Refreshing	Refreshing	Cool

	Sea temperature (°C)	Comfort
Jan	16	Cool
Feb	15	Cool
Mar	16	Cool
Apr	17	Cool
May	19	Cool
Jun	22	Refreshing
Jul	25	Warm
Aug	27	Warm
Sep	26	Warm
Oct	24	Refreshing
Nov	21	Refreshing
Dec	19	Cool

UV index in Ōmura in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ōmura peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	4	6	8	8	9	10	9	9	7	4	3
Level	Moderate	Moderate	High	Very high	Very high	Very high	Extreme	Very high	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	4	Moderate
Mar	6	High
Apr	8	Very high
May	8	Very high
Jun	9	Very high
Jul	10	Extreme
Aug	9	Very high
Sep	9	Very high
Oct	7	High
Nov	4	Moderate
Dec	3	Moderate

Air quality in Ōmura in Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.

Air quality in Ōmura is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	16	19	23	24	21	17	12	12	12	11	14	13
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Moderate	Good	Good	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	16	Moderate
Feb	19	Moderate
Mar	23	Moderate
Apr	24	Moderate
May	21	Moderate
Jun	17	Moderate
Jul	12	Good
Aug	12	Moderate
Sep	12	Good
Oct	11	Good
Nov	14	Moderate
Dec	13	Moderate

Location & terrain

Where is Ōmura?

Ōmura sits at 32.9°N, 130.0°E, 17 m above sea level, in Japan. The nearest listed city is Isahaya, 12 km away.

Topography around Ōmura

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ōmura.

Within 3 km, the terrain around Ōmura has only modest variations in elevation — a maximum elevation change of 229 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,058 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,406 m.

The land around Ōmura is covered by artificial surfaces (48%) and water (24%) within 3 km, trees (52%) and water (32%) within 16 km, and water (55%) and trees (32%) within 80 km.

3 km

229 m

artificial surfaces 48%

16 km

1,058 m

trees 52%

80 km

1,406 m

water 55%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Winter Ōmura year-round climate Summer →

Spring weather nearby: Isahaya 12 km · Obita 13 km · Togitsu 14 km · Nagasaki 20 km · Ureshinomachi-shimojuku 22 km · Kashima 24 km · Saikai 26 km · Arita 30 km

Japan travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B; 100 V · 50 / 60 Hz
Prices: ≈ 65% of US; price level, 2025
GDP per capita: $35,951; 2025
Happiness: 6.1 / 10; World Happiness, 2025
Safe drinking water: 99%; of population, 2024
Homicide rate: 0.2; per 100k, 2023
Road deaths: 3.6; per 100k/yr, 2019
Income group: High; World Bank
English: Very low; EF EPI 446
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ōmura (32.9214°, 129.9539°, elevation 17 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.