Kamikoizumi in Spring

In spring (March, April and May), Kamikoizumi sees average daytime highs around 18°C and overnight lows near 8°C, with 378 mm of precipitation over about 38 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.

Over the season highs climb from about 11°C in early March to 24°C by late May. The sky is clear or mostly clear about 33% of the time across spring, and the air most often feels dry.

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

Avg daytime high: 18°C; 3rd-warmest season
Avg overnight low: 8°C
Precipitation: 378 mm; 38 wet days
Avg wind: 8 km/h
Travel score: 5.0; 2nd-best season
Months: Mar · Apr · May

← Winter Kamikoizumi year-round climate Summer →

Spring Summer Fall Winter

Temperature in Kamikoizumi in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 11°C in early March to 24°C by late May.

A typical spring day in Kamikoizumi reaches about 18°C and drops to 8°C overnight. The warmest of the three months is May, the coolest March.

How spring really feels in Kamikoizumi

Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 9 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

The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.

Kamikoizumi 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	8° / -0°	55	6.1	2	9.8	1.6
Feb	9° / 0°	53	6.9	2.3	10.6	2.0
Mar	13° / 3°	104	11.8	1.5	11.7	3.5
Apr	18° / 8°	121	12.2	0.2	12.9	5.4
May	23° / 14°	153	13.7	0	13.9	6.1
Jun	25° / 18°	187	16.7	0	14.4	5.3
Jul	29° / 22°	220	18.8	0	14.2	4.3
Aug	30° / 23°	171	16.4	0	13.4	4.1
Sep	26° / 20°	221	16.7	0	12.2	5.3
Oct	21° / 14°	206	13.7	0	11.1	5.9
Nov	15° / 7°	83	8.6	0	10.1	5.0
Dec	10° / 2°	51	6.7	0.4	9.6	2.8

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time across spring.

Chance of precipitation in Spring

Any precipitationSnow

Kamikoizumi gets around 378 mm of rain and snow over 38 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 8 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 06 min in early March to 14 h 18 min 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 Kamikoizumi

In seasonPeak

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

Kamikoizumi's rainy season runs March–October, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is spring a good time to visit Kamikoizumi?

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.

5.0

Sightseeing

2nd-best month of the year

2.1

Beach & pool

3rd-best month of the year

spring is a reasonable time to visit Kamikoizumi for sightseeing.

What to pack for Kamikoizumi in Spring

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

In spring, Kamikoizumi sees daytime highs around 18°C and nights near 8°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 38 days see rain.

light clothesa warm layerrain gearsun protection

UV index in Kamikoizumi in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kamikoizumi peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	4	4	7	8	9	10	9	8	6	3	2
Level	Moderate	Moderate	Moderate	High	Very high	Very high	Very high	Very high	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	2	Moderate
Feb	4	Moderate
Mar	4	Moderate
Apr	7	High
May	8	Very high
Jun	9	Very high
Jul	10	Very high
Aug	9	Very high
Sep	8	Very high
Oct	6	High
Nov	3	Moderate
Dec	2	Moderate

Air quality in Kamikoizumi 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 Kamikoizumi is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 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)	15	21	25	26	24	20	17	16	16	16	16	14
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	21	Moderate
Mar	25	Moderate
Apr	26	Moderate
May	24	Moderate
Jun	20	Moderate
Jul	17	Moderate
Aug	16	Moderate
Sep	16	Moderate
Oct	16	Moderate
Nov	16	Moderate
Dec	14	Moderate

Location & terrain

Where is Kamikoizumi?

Kamikoizumi sits at 36.3°N, 139.4°E, 26 m above sea level, in Japan. The nearest listed city is Menuma, 6.0 km away.

Topography around Kamikoizumi

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

Within 3 km, the terrain around Kamikoizumi has only modest variations in elevation — a maximum elevation change of 27 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 483 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,563 m.

The land around Kamikoizumi is covered by artificial surfaces (53%) and cropland (38%) within 3 km, artificial surfaces (44%) and cropland (32%) within 16 km, and trees (58%) and artificial surfaces (23%) within 80 km.

3 km

27 m

artificial surfaces 53%

16 km

483 m

artificial surfaces 44%

80 km

2,563 m

trees 58%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Winter Kamikoizumi year-round climate Summer →

Spring weather nearby: Menuma 6.0 km · Ōta 7.0 km · Ashikaga 8.0 km · Ōwa 9.0 km · Tatebayashi 9.0 km · Gyōda 14 km · Hanyū 14 km · Kumagaya 15 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 Kamikoizumi (36.2643°, 139.4291°, elevation 26 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.