Climatch

Portsmouth, United Kingdom vs Llanelli Climate

98%match

On climate, Llanelli is a 98% match for Portsmouth. Compared with Portsmouth, Llanelli has the same winter lows and more rain in summer.

Portsmouth gets 33 in (844 mm) of rain a year and Llanelli 46 in (1160 mm). July is the warmest month in both, with highs of 72°F (22°C) in Portsmouth and 69°F (20°C) in Llanelli.

JanFebMarAprMayJunJulAugSepOctNovDecJFMAMJJASOND
Portsmouth
JanFebMarAprMayJunJulAugSepOctNovDecJFMAMJJASOND
Llanelli

Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.

Month by month

Highs and lows (°F)

PortsmouthLlanellisolid = high, dashed = low

20°40°60°80°JFMAMJJASONDPortsmouth Jan: 48°Portsmouth Feb: 48°Portsmouth Mar: 51°Portsmouth Apr: 57°Portsmouth May: 63°Portsmouth Jun: 68°Portsmouth Jul: 72°Portsmouth Aug: 71°Portsmouth Sep: 67°Portsmouth Oct: 60°Portsmouth Nov: 53°Portsmouth Dec: 49°Portsmouth Jan: 38°Portsmouth Feb: 37°Portsmouth Mar: 40°Portsmouth Apr: 43°Portsmouth May: 48°Portsmouth Jun: 53°Portsmouth Jul: 57°Portsmouth Aug: 57°Portsmouth Sep: 53°Portsmouth Oct: 48°Portsmouth Nov: 42°Portsmouth Dec: 39°Llanelli Jan: 48°Llanelli Feb: 48°Llanelli Mar: 51°Llanelli Apr: 56°Llanelli May: 61°Llanelli Jun: 66°Llanelli Jul: 69°Llanelli Aug: 68°Llanelli Sep: 65°Llanelli Oct: 59°Llanelli Nov: 53°Llanelli Dec: 49°Llanelli Jan: 39°Llanelli Feb: 38°Llanelli Mar: 40°Llanelli Apr: 43°Llanelli May: 48°Llanelli Jun: 53°Llanelli Jul: 56°Llanelli Aug: 56°Llanelli Sep: 53°Llanelli Oct: 48°Llanelli Nov: 43°Llanelli Dec: 40°

Rain (in per month)

PortsmouthLlanelli

0246JFMAMJJASONDPortsmouth Jan: 3.5Portsmouth Feb: 2.5Portsmouth Mar: 2.2Portsmouth Apr: 2.0Portsmouth May: 1.9Portsmouth Jun: 2.2Portsmouth Jul: 2.1Portsmouth Aug: 2.3Portsmouth Sep: 2.5Portsmouth Oct: 4.0Portsmouth Nov: 4.2Portsmouth Dec: 3.8Llanelli Jan: 4.4Llanelli Feb: 3.4Llanelli Mar: 3.0Llanelli Apr: 2.7Llanelli May: 2.7Llanelli Jun: 3.2Llanelli Jul: 3.7Llanelli Aug: 3.9Llanelli Sep: 3.4Llanelli Oct: 5Llanelli Nov: 5.5Llanelli Dec: 5.0

Monthly averages

Average monthly highs, lows and rain in Portsmouth and Llanelli
MonthHighLowRain
PortsmouthLlanelliPortsmouthLlanelliPortsmouthLlanelli
Jan47°F(9°C)47°F(9°C)38°F(3°C)38°F(4°C)3.5 in(90 mm)4.4 in(112 mm)
Feb47°F(9°C)47°F(9°C)37°F(3°C)38°F(3°C)2.5 in(63 mm)3.3 in(85 mm)
Mar51°F(11°C)51°F(10°C)40°F(4°C)40°F(4°C)2.2 in(57 mm)3.0 in(76 mm)
Apr57°F(14°C)56°F(13°C)43°F(6°C)43°F(6°C)2.0 in(52 mm)2.7 in(68 mm)
May63°F(17°C)61°F(16°C)47°F(9°C)47°F(9°C)1.9 in(47 mm)2.7 in(69 mm)
Jun68°F(20°C)65°F(19°C)53°F(12°C)53°F(12°C)2.2 in(55 mm)3.2 in(81 mm)
Jul72°F(22°C)69°F(20°C)56°F(14°C)56°F(14°C)2.1 in(53 mm)3.7 in(93 mm)
Aug71°F(22°C)68°F(20°C)56°F(14°C)56°F(13°C)2.3 in(59 mm)3.9 in(98 mm)
Sep67°F(19°C)65°F(18°C)53°F(12°C)53°F(11°C)2.5 in(63 mm)3.4 in(86 mm)
Oct60°F(16°C)59°F(15°C)48°F(9°C)48°F(9°C)4.0 in(102 mm)5.0 in(127 mm)
Nov53°F(12°C)53°F(12°C)42°F(6°C)43°F(6°C)4.2 in(107 mm)5.5 in(139 mm)
Dec49°F(9°C)49°F(9°C)39°F(4°C)40°F(4°C)3.8 in(96 mm)5.0 in(126 mm)

1991–2020 averages, by calendar month.

More comparisons

Places like Portsmouth →Places like Llanelli →