Home › Rainfall › Bangor

Rainfall in Bangor

How much rain fell in Bangor, Gwynedd? Daily, weekly and monthly totals averaged over the Natural Resources Wales rain gauges within 15km, updated every 15 minutes.

The average of 2 rain gauges within 15km of the centre of Bangor, all reporting in the last two days. The nearest is Bethesda Quarry Raingauge, 7.9km away. Rain can be very local, so one street may differ from the average.

0.0mm

Yesterday (24 Sep 2026)

36.3mm

Last 7 days

–

September so far

4.7mm

Today so far (UTC)

Rain forecast

Next 24 hours: little or no rain forecast for the area around Bangor (under 0.2mm).

A computer model forecast (DWD ICON) for a square about 15 km across, updated 17:05 UK time. It is a forecast, not a measurement, and not a Met Office forecast. Weather data by Open-Meteo (CC BY 4.0).

Nearest rain gauges to Bangor

Gauge	Distance	Yesterday	7 days	September	Today
Bethesda Quarry Raingauge	7.9km	0.0mm	49.6mm	–	6.2mm
Llyn Cefni Raingauge	14.3km	0.0mm	23.0mm	–	3.2mm
Cwm Dyli Raingauge	19.5km	0.0mm	70.6mm	–	3.6mm

Last 30 days (average of 2 gauges within 15km)

Daily totals 26 Aug–24 Sep. Wettest day: 27.5mm. Striped days have no daily total from these gauges (missing data, not a dry day).

Rain days this September

15 days with at least 0.2mm of rain so far this September at Bethesda Quarry Raingauge.

Average rainfall in Bangor

Bangor gets about 1,130 mm of rain a year on average (wettest month November, 133 mm; driest May, 67 mm). That is close to the UK as a whole, which averages 1,163 mm a year.

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
100	86	77	67	67	70	78	87	102	132	133	131

Monthly averages in mm. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 0.5 km from the centre of Bangor. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0. UK comparison: Met Office HadUK-Grid areal series, 1991-2020, Open Government Licence v3.0.

More for Bangor

Bethesda Quarry Raingauge — full gauge history → Llyn Cefni Raingauge — full gauge history → Cwm Dyli Raingauge — full gauge history → Notable recent rainfall across the UK → River stations in Gwynedd →

Frequently asked questions

How much rain fell in Bangor yesterday?

0.0mm of rain fell yesterday (24 Sep 2026), from the average of 2 rain gauges within 15km of Bangor.

Is this month wetter than normal in Bangor?

The gauges near Bangor do not have a complete record for September yet, so no month total is shown.

Where is the nearest rain gauge to Bangor?

Bethesda Quarry Raingauge is the nearest rain gauge, 7.9km from the centre of Bangor. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.

Rainfall data: Natural Resources Wales rain gauges, synced every 15 minutes. Daily totals are computed overnight (UTC days); "today so far" is live. Gauge distances are straight-line from the centre of Bangor — local rainfall can vary over short distances. The centre of Bangor is the Ordnance Survey Open Names point for the city or town. Contains OS data © Crown copyright and database right 2026 (OGL v3.0).

Explore FloodRadar